MCQs 7dd For Final Exam
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Why recipient side has to be done first, before extraction donor tooth?
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Because, Preventing from donor tooth expose to environment, that cause damage to periodontium cell
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Because, Waiting for blood clots in the recipient side socket
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Prevent the damage to the socket of donor teeth
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Bleeding control at the recipient side
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This quiz titled 'MCQs 7DD For Final Exam' covers key topics in oral surgery, focusing on procedures like tooth extraction, flap design, and tissue management.
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- 2.
How to clean and take away the follicle in the cervical of the tooth?
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Cut by scissor
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Peal off
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Wipe with gauze
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Clean by Sodium Hypochloride
Correct Answer
A. Cut by scissorExplanation
The correct answer is "Cut by scissor." This suggests that the method to clean and remove the follicle in the cervical area of the tooth is by cutting it with scissors. This implies that a physical removal is required, rather than peeling off or wiping with gauze. Additionally, the use of Sodium Hypochloride is not mentioned as a cleaning method in this context.Rate this question:
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- 3.
What happen to the tissue pH at the infection side?
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Low pH
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High pH
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Neutral pH
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All are correct
Correct Answer
A. Low pHExplanation
During an infection, the body's immune response triggers the release of various chemicals, including hydrogen ions. These hydrogen ions contribute to the acidity of the area, resulting in a decrease in pH. This low pH environment is unfavorable for many pathogens, as it can inhibit their growth and survival. Therefore, the tissue pH at the infection site becomes low.Rate this question:
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- 4.
Giving the name of this flap
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X flap
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Y flap
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Envelop flap
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Triangle flap
Correct Answer
A. X flap -
- 5.
Whis is the name of this incision?
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Z-plasty
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Y flap incision
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Transver cut incision
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Double angle incision
Correct Answer
A. Z-plastyExplanation
Z-plasty is a surgical technique used to reposition or lengthen scars. It involves creating two triangular flaps of skin with a central limb, resembling the letter "Z". This technique is commonly used to improve the functional and cosmetic outcomes of scars, particularly in areas of tension. The triangular flaps are designed to redirect tension away from the scar, resulting in a more inconspicuous and flexible scar. Therefore, the correct answer is Z-plasty.Rate this question:
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- 6.
What is this surgical procedure
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Fraenectomy
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Lingual Fraenectomy
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Lip repositioning
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Diastema closure
Correct Answer
A. FraenectomyExplanation
A fraenectomy is a surgical procedure that involves the removal or modification of the fraenum, a small fold of tissue that connects the lips, tongue, or cheeks to the underlying structures. It is commonly performed to correct issues such as a short or tight fraenum that restricts movement or causes dental problems. In this case, the correct answer is Fraenectomy, as it refers to the general surgical procedure of removing or modifying the fraenum.Rate this question:
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- 7.
How many level of Precaution of using antibiotic:
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3 level: Level A, B, C
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4 Level: Level A, B, C, D
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2 Level: Level A, B
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All are correct
Correct Answer
A. 3 level: Level A, B, CExplanation
The correct answer is 3 levels: Level A, B, C. This means that there are three levels of precaution when using antibiotics, namely Level A, Level B, and Level C. It suggests that there are different levels of caution and guidelines that need to be followed while using antibiotics to ensure their proper and effective use.Rate this question:
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- 8.
Clindamycin is in the group of:
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Macrolid
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Penicillin
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Fluroquinolone
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Septicemia
Correct Answer
A. MacrolidExplanation
Clindamycin belongs to the group of macrolide antibiotics. Macrolides are a class of antibiotics that inhibit bacterial protein synthesis by binding to the 50S ribosomal subunit. They are effective against a wide range of gram-positive bacteria, some gram-negative bacteria, and atypical pathogens. Clindamycin specifically is commonly used to treat infections caused by anaerobic bacteria and certain types of gram-positive bacteria. It is not a penicillin or a fluoroquinolone, and septicemia is a condition characterized by the presence of bacteria in the bloodstream, not a group of antibiotics.Rate this question:
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- 9.
What is the mycotic aneurysm?
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Complication of arterial wall from hematogenous spread of bacterial infection
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Complication by antibiotic prophylaxis
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Infection to the mediastinum and spread the infection to the brain.
Correct Answer
A. Complication of arterial wall from hematogenous spread of bacterial infectionExplanation
A mycotic aneurysm is a complication that occurs when a bacterial infection spreads through the bloodstream and affects the arterial wall. This can weaken the wall and cause it to bulge, forming an aneurysm. It is called "mycotic" because it is often caused by a fungal infection, although bacterial infections can also be responsible. This condition is a serious medical concern as it can lead to rupture of the aneurysm and potentially life-threatening complications.Rate this question:
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- 10.
What is the Bactericidal antibiotic?
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Antibiotics kill bacteria
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Antibiotic limit growth of bacteria
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Antibiotic resistant
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Antibiotic sensitivity
Correct Answer
A. Antibiotics kill bacteriaExplanation
Bactericidal antibiotics are a type of antibiotic that directly kill bacteria. Unlike bacteriostatic antibiotics, which only inhibit the growth and reproduction of bacteria, bactericidal antibiotics actively destroy the bacteria, leading to their death. This is achieved by targeting specific components or processes within the bacterial cells, such as cell wall synthesis or protein synthesis, causing irreparable damage and ultimately killing the bacteria. Bactericidal antibiotics are often preferred in severe or life-threatening infections, where rapid elimination of the bacteria is crucial for the patient's recovery.Rate this question:
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- 11.
ដើម្បីមានភាពរឹងមាំល្អ និង មានសោភណ័ភាព porcelain ដែលមានគ្រោងជា metal ត្រូវមាន margin ដែល 1. កំរាស់ 0,8-1,2 រាង shoulder 2. មានខ្សែបន្ទាត់មុំ aio gingival រាងច្បាស់ហើយស្មើរ 3. មានតែម Cavo surface 90-100 4. មាន limit cervical ក្រោមអញ្ជាញ 2mm
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (1) , (2) និង (3) ត្រឹមត្រូវExplanation
To achieve good aesthetics and a porcelain-like appearance in a metal crown, it is necessary to have specific margins and characteristics. The shoulder margin should be 0.8-1.2 mm in width and have a shoulder shape. The crown should have an all-in-one (AIO) gingival bevel that is smooth and continuous. The Cavo surface should have a 90-100 degree angle. Additionally, there should be a cervical limit below the gingival margin of 2mm. Therefore, options (1), (2), and (3) are all correct and aligned with the given requirements.Rate this question:
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- 12.
តើ Zince phosphate cement , មានលក្ខណះសម្បតិ្តអី្វខ្លះ ដែលអាចឲគេយកវាមកប្រើជា luting agent ? 1. ភាពមិនជ្រាបទឹក 2. ប្រឆាំងនិងការមាន Carie 3. ការភ្ជាប់ជាលក្ខណះគីមី 4. ការទាក់ជាប់ជាលក្ខណះមេកានិច
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(4) ត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (4) ត្រឹមត្រូវExplanation
Zinc phosphate cement can be used as a luting agent because it has the ability to bond to both enamel and dentin surfaces. It forms a strong and durable bond, making it suitable for cementing restorations such as crowns and bridges. Additionally, zinc phosphate cement has good biocompatibility and is resistant to dissolution in oral fluids. Therefore, it is an effective choice for luting agents in dental applications.Rate this question:
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- 13.
នៅពេលហើមមានការឈឺ ពិបាកទំពារ trismus និងការផ្លាស់ទីរបស់ក្រឡើត។ តើទាំងនេះជាសញ្ញានៃការបង្ករមេរោគនៅតំបន់ណា?
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Lateral parapharyngeal
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Submandibular
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Sublingual
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Deep temporal
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Submasseteric
Correct Answer
A. Lateral parapharyngealExplanation
The correct answer is "Lateral parapharyngeal". Trismus refers to the condition of having difficulty in opening the mouth due to muscle spasm. The lateral parapharyngeal region is located on the side of the pharynx, near the jaw joint. In cases of trismus, the muscles in this region may become affected, leading to limited mouth opening. The other options, such as submandibular, sublingual, deep temporal, and submasseteric, are not directly related to trismus.Rate this question:
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- 14.
អ្នកជំងឺទឹកនោមផ្អែមម្នាក់ ភេទប្រុស អាយុ 22ឆ្នាំ មកគ្លីនិក របស់អ្នក។ គាត់មានការគ្រប់គ្រងជាតិ insulin បានល្អ ប៉ុន្តែក្រោយពីចាក់ថ្នាំស្ពឹក lidocain ដែលមានចំនុះ1,8ml កំហាប់ 2% និងមានជាតិ epinephrine 1: 10000 រួចមក គាត់មានអារម្មណ៍វីលមុខ និងខ្សោយ។ គាត់មានសភាពស្លេកស្លាំងទោះបីគេដាក់ស្ករលើថ្ងាស់និង បបូមាត់ខាងលើរបស់គាត់ក៏ដោយ។ វិធីចំបងក្នុងការគ្រប់គ្រងអ្នកជំងឺនេះនៅពេលនេះគឺ៖
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លើកជើងគាត់ឲខ្ពស់ ហើយបញ្ចូល O² 100%
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ដាក់ថ្នាំ Glucagon 1 mg
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ដាក់ Epinephrine 0.5 mg
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ប្រើថ្នាំ Benadryl ( dipheny dramine ) 50 mg
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ហៅឡានពេទ្យ 119 និងចាប់ផ្តើម CPR
Correct Answer
A. លើកជើងគាត់ឲខ្ពស់ ហើយបញ្ចូល O² 100%Explanation
The patient is experiencing an anaphylactic reaction, as evidenced by the symptoms of difficulty breathing, swelling, and hives. The first step in managing anaphylaxis is to ensure the patient's airway is open and provide them with supplemental oxygen. Administering 100% oxygen will help improve the patient's oxygenation and alleviate their respiratory distress. This is the most immediate and essential intervention to ensure the patient's survival.Rate this question:
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- 15.
តើសាច់ដុំាណាមួយ ដែលនៅក្រាលនៅបាតរបស់មាត់ មនុស្សយើង?
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Mylohyoid
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Stylohyoid
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Digastric
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Platysma
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Genio hyoid
Correct Answer
A. MylohyoidExplanation
The mylohyoid muscle is located in the floor of the mouth. It is responsible for elevating the hyoid bone and assisting in swallowing and speaking. The other muscles listed (stylohyoid, digastric, platysma, geniohyoid) are also muscles involved in the movement of the hyoid bone, but they are not specifically located in the floor of the mouth like the mylohyoid muscle.Rate this question:
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- 16.
ក្មេងអាយុ 8ឆ្នាំ ម្នាក់មានប្រឡោះច្នោចនៅធ្មេញមុច ប្រវែង 8mm តើមកពីមូលហេតុអ្វីខ្លះដែលអាចបណ្ដាលវាកើតមានឡើង? 1. ហ្រ្វាំងមាត់ 2. គីស 3. ធ្មេញ mesiodens 4. ជាការលូតលាស់ធ្មេញ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (2) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (1) , (2) និង (3) ត្រឹមត្រូវExplanation
The correct answer is (1), (2), and (3) because a mesiodens is a supernumerary tooth that can cause crowding and displacement of other teeth. In this case, the child has a mesiodens, which is a small, extra tooth that has erupted in the midline of the maxilla. This can lead to crowding and displacement of the other teeth, causing the overbite. Braces (1) and extraction (2) are common treatments for correcting crowding and misalignment of teeth, while removing the mesiodens (3) can also help alleviate the overbite.Rate this question:
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- 17.
ការព្យាបាលដែលសមស្របបំផុត ក្រោយពីការដកធ្មេញ ធ្គាមទឹកដោះ ទី1 ចំពោះក្មេងអាយុ 4ឆ្នាំ នោះគឺៈ
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ប្រើ space maintainer
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ការតាមដានកាវិវឌ្ឍន៍ អ័ក្សឆ្មេញ អោយទៀងទាត់
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គណនាប្រវែង ចន្លោះ
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ដកធ្មេញថ្គាមដែលនៅប្រឈមគ្នានឹងវា
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ដកធ្មេញដែលនៅជាប់នឹងវា
Correct Answer
A. ប្រើ space maintainerExplanation
The correct answer suggests the use of a space maintainer after the removal of the primary tooth. A space maintainer is a dental appliance that helps to keep the space open and prevent the surrounding teeth from shifting into the empty space. This is important for children around the age of 4, as it allows the permanent tooth to erupt properly without any alignment issues. Additionally, monitoring the eruption of the permanent tooth and removing any retained primary teeth are also essential steps in maintaining proper dental health.Rate this question:
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- 18.
តើជំងឺទូទៅណាមួយ ដែល/ឬ មិនបណ្ដាលដោយមានជំងឺ រលាកជុំវិញជាលិការ ធ្មេញ 1. ជំងឺដែលមាន neutrophil ធ្លាក់ចុះ 2. ទឹកនោម ផ្អែម 3. ជំងឺ អេដស៏ 4. Hereditary hypohydrotic ectodermal dysplasia
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(4) ត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (4) ត្រឹមត្រូវExplanation
The correct answer is (4) Hereditary hypohydrotic ectodermal dysplasia. This is because the question asks for a disease that is not associated with neutrophil migration, excessive sweating, or inflammation. Hereditary hypohydrotic ectodermal dysplasia is a genetic disorder that affects the development of teeth, hair, and sweat glands, leading to a reduced ability to sweat. Therefore, it is the only option that fits the criteria given in the question.Rate this question:
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- 19.
ការថត Lateral cephalometric radiograph នៅខាងអ្នកជំងឺដែលមានធ្មេញងាក 3mm នោះការថតគួរធ្វើឡើង ដោយអោយអ្នកជំងឺ
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ប៉ះផ្ទាល់
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Maimum intercuspation
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ទីតាំងសំរាកធម្មតា
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ហារមាត់អោយធំអស់
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ទីតាំងរុញទៅមុខ
Correct Answer
A. ប៉ះផ្ទាល់Explanation
The correct answer is "ប៉ះផ្ទាល់" (occlusal plane). The lateral cephalometric radiograph is taken to assess the skeletal and dental relationships of the patient. The occlusal plane is an important reference point in analyzing the position and angulation of the jaws and teeth. By aligning the occlusal plane parallel to the horizontal reference line, accurate measurements and evaluations can be made to determine the appropriate treatment plan for the patient.Rate this question:
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- 20.
ការវិវត្ដន៏ លឿននៃជំងឺរលាក ជាលិកាជុំវិញ អញ្ចញ គឺ៖ 1. ការបាតបង់ឆ្អឹង លឿន 2. មេរោគដែលបង្ករជំងឺអញ្ចញ 3. ការចាប់ផ្ដើមវិវត្តន៏ ជំងឺនេះនៅអាយុ 35 ឆ្នាំ 4. មានដំបៅអញ្ចញ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (1) , (2) និង (3) ត្រឹមត្រូវExplanation
The correct answer is (1), (2), and (3) because the passage states that the symptoms of the disease include rapid breathing, severe coughing, and the disease typically starts at the age of 35. This aligns with options (1), (2), and (3) which mention rapid breathing, severe coughing, and the age of onset respectively. Option (4) does not align with any of the symptoms mentioned in the passage.Rate this question:
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- 21.
ពេលយកពុម្ភធ្មេញពីមាត់ អ្នកជំងឺ ជួនកាលមានម្សៅធ្លាក់ចូលបំពង់ករ ដែលធ្វើអោយអ្នកជំងឺ ក្អក និង ពិបាក ដកដង្ហើម & អ្នកគួរតែ៖
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អោយអ្នកជំងឺ ប្រឹងក្អក
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យកដៃរុញពោះគាត់ភ្លាម នៅផ្ចិតគាត់
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យកដៃរុញពោះគាត់ ប្ដុំសន្ទះទ្រូង 6 ទៅ 10 ដង
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យកដៃទះខ្នងគាត់ដោយ ដាកដៃចន្លោះ កណ្ដាលស្មា
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អោយគាត់ផឹក ទឹកត្រជាក់ ដោយមិនដកដង្ហើម
Correct Answer
A. អោយអ្នកជំងឺ ប្រឹងក្អក -
- 22.
ក្មេងប្រុសអាយុ 12ឆ្នាំ ម្នាក់ មានclass II molar relationship ហើយមានទំលាប់ បៀមមេដៃលេង 2 គាត់មាន SNA 830, SNB= 790 . មូលហេតុដែលគាត់មាន malocclusion គឺ៖
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សាច់ដុំ និង សរសៃប្រសាទ
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ធ្មេញ
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គ្រោងឆ្អឹង
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ធ្មេញ និង សរសៃប្រសាទ សាច់ដុំ
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គ្រោងឆ្អឹង និង សរសៃប្រសាទ សាច់ដុំ
Correct Answer
A. សាច់ដុំ និង សរសៃប្រសាទExplanation
The given information states that the individual has a class II molar relationship, with SNA of 830 and SNB of 790. A class II molar relationship indicates that the upper first molar is positioned more anteriorly than the lower first molar. This can result in malocclusion, specifically an overbite or overjet. The correct answer states that the individual has an overbite and an overjet, which aligns with the information provided.Rate this question:
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- 23.
Lee way space នៅក្មេង អាយុ 8ឆ្នាំ ៖
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មានប្រវែងប្រហែល 3,5mm នៅអ័ក្ស mandible
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វានិង ផ្ដល់ចន្លោះ សំរាបអោយ premolar ព្រោះ permanent incisor ដុះ
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វាមានប្រវែងនៅ អ័ក្ស maillary ធំជាងនៅ អ័ក្ស mandible
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កើតឡើងដោយសារឆាប់ដកថ្គាម ទឹកដោះចេញ
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សម្រួលដល់ការដុះចេញនៃ premolar ព្រោះ premolar មានទំហំធំជាងថ្គាមទឹកដោះ
Correct Answer
A. មានប្រវែងប្រហែល 3,5mm នៅអ័ក្ស mandibleExplanation
The mandible has a greater length of 3.5mm compared to the maxillary. This allows for more space and accommodation for the premolar teeth, which are larger than the incisors. The larger size of the premolars requires more room for eruption and growth, and the mandible provides this space. Additionally, the mandible undergoes more remodeling due to the forces exerted during chewing and biting, which may also contribute to its larger size compared to the maxillary.Rate this question:
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- 24.
Osteomyelitis នៅឆ្អឹង mandible កើតក្រោយពីមាន ៖ 1. ការព្យាបាលដោយកាំរស្មី 2. Dento alveolar abscess 3. បាក់ឆ្អឹង 4. Vincen’s angina
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
Correct Answer
A. ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវExplanation
The correct answer is (1) and (3) because osteomyelitis is an infection of the bone, and in this case, it is specifically in the mandible. The options (2) and (4) are not related to osteomyelitis. Dento alveolar abscess is an infection of the tooth and surrounding tissues, while Vincent's angina is a type of severe tonsillitis. Therefore, only options (1) and (3) are appropriate choices for the given question.Rate this question:
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- 25.
អ្នកជំងឺម្នាក់ចង់ដកធ្មេញដែលនៅសល់ទាំងរបស់គាត់ ដើម្បីធ្វើធ្មេញស្និត ពាក់វិញ។ ធ្មេញទាំងអស់នោះសុទ្ធតែពុកជ្រៅដល់គុម ធ្មេញ (dentition) ទាំងអស់ ប៉ុន្ដែ ជាលិកាជំវិញធ្មេញ គឺ ល្អ។វិធីគ្រប់គ្រង ដ៏ ល្អក្នុងពេលនេះគឺ 1. គោរពតាមការសំរេចចិត្ត របស់ជំងឺ 2. ទន្មានអ្នកជំងឺ អោយគាត់ទៅជួប អ្នក ឯកទេស 3. ពិភាក្សាជាមួយគាត់នូវជំរើសព្យាបាល ផ្សេងៗ ដ៏ទៃទៀតដែលសមស្របចំពោះគាត់ 4. បកេសេធន៍មិន ធ្វើការបញ្ចូនគាត់ទៅគ្រូពេទ្យផ្សេង ឬ មិនព្យាបាលគាត់តែម្ដង ព្រោះវាកាជាមិនសមរម្យ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (1) , (2) និង (3) ត្រឹមត្រូវExplanation
The correct answer is (1), (2), and (3) are all correct. This is because the passage mentions that the person wants to remove the teeth to make dentures and that all of their teeth are healthy. Therefore, the person can consider options like dental extraction based on the advice of a professional, consult with others who have undergone similar procedures, and conduct further research on various dental clinics and treatments. Option (4) is incorrect because the passage does not mention anything about the person's financial situation or their ability to afford dental treatment.Rate this question:
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- 26.
ក្នងចំនោមថ្នាំខាងក្រោម តើថ្នាំមួយានាដែលមានប្រសិទ្ធភាពជាង គេក្នុងការព្យាបាល Angular cheilosis ?"
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Nystatin
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Penicillin
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Erythromycin
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Tetracycline
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Clindamycin
Correct Answer
A. NystatinExplanation
Nystatin is the correct answer because it is an antifungal medication commonly used to treat oral thrush, which is a fungal infection that can cause cheilosis (cracking and inflammation of the lips). The other options, penicillin, erythromycin, tetracycline, and clindamycin, are antibiotics and would not be effective in treating a fungal infection.Rate this question:
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- 27.
ការរងបួលលើមុខ ជាញឹកញយ អាចបណ្ដាលអោយមាន៖
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Ossifying myositis
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ការរួមស្វិត សាច់ដុំ Masseter
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Osteo sarcoma
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Suppurative myositis
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Ossifying periostitis
Correct Answer
A. Ossifying myositisExplanation
Ossifying myositis is a condition characterized by the formation of bone within muscle tissue. This can occur due to various factors such as trauma, infection, or inflammation. In this case, the question is asking about the condition that can result in the formation of bone on the jaw muscle, specifically the masseter muscle. Ossifying myositis is the most appropriate answer as it directly relates to the formation of bone within muscle tissue, which is consistent with the given information.Rate this question:
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- 28.
តើភាពមិនប្រក្រតីពីកំកើតដែលទាតទង នឹង ក្បាល និង ក មួយដែលកើតញឹកញាប់ជាងគេ?
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ឆែបក្រអូប (clef palate)
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Cystic hygroma colli
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Encephalo trigminal angio matosis
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បបូរមាត់2 (double lip)
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Commissural pits
Correct Answer
A. ឆែបក្រអូប (clef palate)Explanation
Cleft palate is a birth defect where the roof of the mouth does not fully close, resulting in a split or opening in the palate. This condition is not directly related to the other options mentioned, such as cystic hygroma colli, encephalo trigminal angio matosis, double lip, or commissural pits. Therefore, cleft palate is the answer that is not related to the other options.Rate this question:
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- 29.
Caries នៅផ្ទៃមុខហើយរលោង វាចាប់ផ្ដើមកើតនៅតំបន់1 ដែលនៅ៖
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ផ្ទៃខាងក្រៅ នៃ enamel និង dentin
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ផ្ទៃខាងក្នុង នៃ enamel
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ផ្ទៃខាងក្រៅ នៃ dentin
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ផ្ទៃខាងក្រៅ នៃ enamel
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ផ្ទៃខាងក្នុង នៃ dentin
Correct Answer
A. ផ្ទៃខាងក្រៅ នៃ enamel និង dentinExplanation
The correct answer is the outer surface of enamel and dentin. This means that caries can start on the outer surface of both enamel and dentin. Caries, also known as tooth decay, is caused by the breakdown of the tooth structure due to acid produced by bacteria in the mouth. It typically starts on the outer layer of the tooth, which is the enamel, and can progress to the underlying layer called dentin. Therefore, both enamel and dentin surfaces are susceptible to caries.Rate this question:
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- 30.
ការប្រើប្រាស់ etcging និង bonding មុននឹងដាក់ composite resin អោយផល 1. ធ្វើអោយល្អប្រសើរដល់ការជាប់នៃការប៉ះ 2. ថយចុះនៃការលេចជ្រាបតាមគែមខាងៗ 3. កាត់បន្ថយប្រសិទ្ធភាពនៃការរួញ polymerization 4. រិតតែមាំជាប់ឡើងនៃបំណះនោះ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (1) , (2) និង (3) ត្រឹមត្រូវExplanation
The correct answer is (1), (2), and (3) are all correct.
(1) The use of etcging and bonding before placing the composite resin ensures a good bond between the restoration and the tooth structure.
(2) Proper etching allows for better adhesion by creating micro-retention on the tooth surface, while proper bonding ensures a strong bond between the composite resin and the tooth.
(3) Adjusting the polymerization efficiency helps to improve the physical properties of the composite resin, ensuring optimal strength and durability.
Therefore, all three options are necessary and contribute to the successful placement of composite resin restorations.Rate this question:
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- 31.
មួយណានៃថ្នាំខាងក្រោមនេះ ដែលហាមប្រើប្រាស់ចំពោះអ្នកជំងឺដែលកំពុងលេបថ្នាំ Coumadin ៖
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Acetylsalicylic acid
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Acetominophen
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Penicillin
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Codeine
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Clindamycin
Correct Answer
A. Acetylsalicylic acidExplanation
Acetylsalicylic acid is the correct answer because Coumadin is a blood thinner medication that works by inhibiting the formation of blood clots. Acetylsalicylic acid, commonly known as aspirin, also has blood-thinning properties and can increase the risk of bleeding when taken with Coumadin. Acetaminophen, penicillin, codeine, and clindamycin do not have the same blood-thinning effects and are less likely to interact with Coumadin in this way.Rate this question:
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- 32.
Sensitivity ដែលទាក់ទងទៅនឹងកធ្មេញដែលគ្មាន caries គឺល្អបំផុតដោយពន្យល់ថា៖
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តាមទ្រឹស្តី hydrodynamic
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ការចំលងកំដៅនៃ dentin
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ដំណើរនៃការបង្កើត dentin (dentonogenesis)
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យន្តការតាមច្រកកោសិការ
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សមាសភាព ignorganic នៃ dentin
Correct Answer
A. តាមទ្រឹស្តី hydrodynamicExplanation
Hydrodynamic theory suggests that sensitivity is related to the movement of fluid within the dentinal tubules. When external stimuli, such as temperature or pressure, are applied to the tooth, it causes fluid movement within the tubules, leading to the sensation of sensitivity. This theory explains that when the dentin is healthy and intact, the fluid movement is minimal, resulting in less sensitivity.Rate this question:
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- 33.
កក្តាខាងក្រោមនេះដែលមានឥទ្ធិពលទៅលើ polymerizination នៃពន្លឺដែលអាចមើលឃើញសំរាប់ធ្វើអោយ composite resin រឹង 1. ពណ៌ 2. កំរាស់ composite 3. ភាពជិតនៃប្រភពពន្លឺ 4. សីតុណ្ហភាពនៃ composite
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (1) , (2) និង (3) ត្រឹមត្រូវExplanation
The correct answer is (1), (2) and (3) because the color, composition, and source of the polymerization of composite resin can affect its properties. The color of the resin can affect its appearance and aesthetic appeal. The composition of the composite resin, which includes the type of filler material, can determine its strength and durability. The source of the polymerization, whether it is light-cured or self-cured, can also affect the properties and performance of the composite resin. Therefore, all three factors are important considerations in the polymerization of composite resin.Rate this question:
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- 34.
អ្នកជំងឺម្នាក់បានត្អូញត្អែរថា មានភាពស្រៀវសង្គៀនៅថ្ងៃដែលបានប៉ះ composite resin សំរាប់ធ្មេញខាងក្រោយ។ មូលហេតុដ៏គួរបំផុតគឺ៖
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ការលេចជ្រាបតាមរន្ធតូចៗ
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Acid etching
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មកពី unpolymerized resin
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ការបាញ់ពន្លឺយូរ
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កំរាស់បាតមិនគ្រប់គ្រាន់
Correct Answer
A. ការលេចជ្រាបតាមរន្ធតូចៗExplanation
The correct answer is "ការលេចជ្រាបតាមរន្ធតូចៗ" (etching with acid). This is because acid etching is a common technique used to prepare the surface of the tooth for the bonding of composite resin. It helps to create a rough surface that allows the resin to adhere more effectively, ensuring a strong bond between the resin and the tooth.Rate this question:
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- 35.
អ្នកជំងឺម្នាក់បានត្អូញត្អែរថា មានភាពស្រៀវសង្គៀនៅថ្ងៃដែលបានប៉ះ composite resin នៅលើធ្មេញខាងក្រោយ។ មូលហេតុដែលអាចបំផុតគឺ៖
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ការលេចជ្រាបតាមរន្ធតូចៗ
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Acid etching
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មកពី unpolymerized resin
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ការបាញ់ពន្លឺយូរ
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កំរាស់បាតមិនគ្រប់គ្រាន់
Correct Answer
A. ការលេចជ្រាបតាមរន្ធតូចៗExplanation
The correct answer is "ការលេចជ្រាបតាមរន្ធតូចៗ" (microscopic etching). This is because when composite resin is placed on the back of the tooth, the surface needs to be roughened or etched to create a better bond between the resin and the tooth. Microscopic etching involves using an acidic solution to create tiny pits and irregularities on the tooth surface, providing a better surface for the resin to adhere to.Rate this question:
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- 36.
ចំនុចខាងក្រោមនេះមួយណាជាចំនុចសំខាន់ចំពោះដំនើរការផ្ជាប់ Cement ជាមួយនឹង porcelain veneer?
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ការដាក់ Etching ផ្ទៃខាងក្នុងជាមួយនឹង hydrofluoric acid
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ការដាក់ primer មួយស្រទាប់
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ការដាក់ Silane នៅលើផ្ទៃដែលមិនបានដាក់ Etching
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ការដាក់ស្រទាប់ opaque
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ការដាក់ Etching ផ្ទៃខាងក្នុងជាមួយនឹង phosphoric acid
Correct Answer
A. ការដាក់ Etching ផ្ទៃខាងក្នុងជាមួយនឹង hydrofluoric acidExplanation
Etching is the process of creating a rough surface on the porcelain veneer to improve the bonding of the cement. Hydrofluoric acid is commonly used for etching because it is effective in creating micro-porosities on the surface of the veneer, allowing for better adhesion of the cement. This rough surface provides more surface area for the cement to bond to, resulting in a stronger and more durable bond between the veneer and the tooth.Rate this question:
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- 37.
ស្ថានភាពខាងក្រោម អាចជាលទ្ធផលបណ្តាលអោយ Complete dentures មិនជាប់ 1. ជាលិកាទន់មាន hyperplasia 2. គែម alveolar ស្រកចុះ 3. មានជំងឺបបូរមាត់ angular cheilitis 4. មានជំងឺ carcinoma
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
Correct Answer
A. ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវExplanation
The correct answer is (1) and (3) because the given symptoms indicate that the individual may have hyperplasia, alveolar bone resorption, and angular cheilitis. These conditions are commonly associated with wearing complete dentures. However, there is no indication of carcinoma in the given information.Rate this question:
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- 38.
អ្នកជម្ងឺសុខភាពល្អម្នាក់អាយុ 78ឆ្នាំ មាន Carious lesions ថ្មីបីនៅលើផ្ទៃនៃឫសធ្មេញ។ ភាគច្រើនវាគួរជាលទ្ធផលនៃ៖
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អាយុដែលទាក់ទងនឹងការការថយចុះនឹង salivary flow
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អាយុដែលទាក់ទងនឹងការប្រែប្រួលនៃសមាសភាពរបស់ Cementum Composition
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The architecture នៅឯ CEJ
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ការផ្លាស់ប្តូរក្នុងលំនាំនៃរបបអាហារ
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ជម្ងឺអញ្ចាញរ៉ាំរ៉ៃ (Chronic periodontal disease)
Correct Answer
A. អាយុដែលទាក់ទងនឹងការការថយចុះនឹង salivary flowExplanation
The age-related decrease in salivary flow can contribute to the development of carious lesions on the surface of the teeth. Saliva plays an important role in maintaining oral health by neutralizing acids, remineralizing enamel, and washing away food particles and bacteria. When salivary flow decreases, the protective effects of saliva are reduced, making the teeth more susceptible to tooth decay. Therefore, the age-related decrease in salivary flow is likely to be a contributing factor to the development of carious lesions in this individual.Rate this question:
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- 39.
Primordial Cyst អាចជាលទ្ធផលមកពី៖
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ការចុះខ្សោយរបស់ cystic នៃ stellate reticulum មុនពេលកកើតនៃធ្មេញ
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សំណល់ epithelial នៅក្នុង periodontal ligament
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ការរាលដាលនៃការរលាក pulp បន្ទាប់ពី pulp ងាប់
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ការខកខាននៃ ការកកើតរបស់ enamel matri
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The dental lamina
Correct Answer
A. ការចុះខ្សោយរបស់ cystic នៃ stellate reticulum មុនពេលកកើតនៃធ្មេញExplanation
The primordial cyst develops from the cystic degeneration of the stellate reticulum before the formation of the enamel matrix. This occurs before the dental lamina forms and before the development of the periodontal ligament. Additionally, the cyst does not involve the pulp or the enamel matrix.Rate this question:
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- 40.
ការព្យាបាលសមគួរបំផុតនៃ necrotizing ulcerative periodontitis (NUP) ចំពោះអ្នកជម្ងឺដែលមិនមានគ្រុនក្តៅ និងមិនមានជម្ងឺ lymphadenopathy គឺ៖ 1. ការលាងសំអាត ជាលិកាជុំវិញធ្មេញ periodontal debridement 2. ព្យាបាលដោយ antibiotic 3. ការអប់រំអនាម័យមាត់ធ្មេញ 4. ព្យាបាលដោយ topical steroid
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(1) និង (3) ត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (1) និង (3) ត្រឹមត្រូវExplanation
The correct answer is (1) and (3) because necrotizing ulcerative periodontitis (NUP) is characterized by necrosis of the periodontal tissues and the absence of lymphadenopathy. Therefore, periodontal debridement to remove the necrotic tissue and management of the underlying infection are necessary treatment approaches. Additionally, addressing any underlying systemic conditions that may contribute to the development of NUP is also important.Rate this question:
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- 41.
នៅក្នុងការព្យាបាលជាលិកាជុំវិញធ្មេញ“ guided tissue regeneration” គឺមានជោគជ័យបំផុតដោយព្យាបាល 1. ការបាត់បង់ horizontal bone 2. a 3-walled infrabony defect 3. ទាក់ទងទៅនឹងa mandibular Class III furcation 4. ទាក់ទងទៅនឹង a mandibular Class II furcation
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(2) និង (4) ត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (2) និង (4) ត្រឹមត្រូវExplanation
In guided tissue regeneration, the goal is to regenerate lost bone and tissue. Option (2) "a 3-walled infrabony defect" and option (4) "a mandibular Class II furcation" are both examples of periodontal defects that can be treated using guided tissue regeneration techniques. In a 3-walled infrabony defect, the bone loss occurs on three sides of the tooth, while in a mandibular Class II furcation, there is bone loss around the furcation area of a mandibular tooth. Both of these defects can benefit from guided tissue regeneration to promote bone and tissue regrowth.Rate this question:
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- 42.
ពេលណាដែលចង្កូមធ្មេញស្រុកខាងលើ (maillary permanent canine) ដុះចេញមក៖
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មុនថ្គាមធំទី២ធ្មេញស្រុកខាងលើ (maillary second permanent molar)
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មុនចង្កូមធ្មេញស្រុកខាងក្រោម (mandibular permanent canine)
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មុនថ្គាមតូចទី១ ខាងលើ (maillary first premolar)
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បន្ទាប់ពី ថ្គាមធំទី២ធ្មេញស្រុកខាងលើ (maillary second permanent molar)
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ចំលើយទាំងអស់ខាងលើមិនត្រឹមត្រូវ
Correct Answer
A. មុនថ្គាមធំទី២ធ្មេញស្រុកខាងលើ (maillary second permanent molar) -
- 43.
មួយណានៃខាងក្រោមនេះ ទាក់ទងជាមួយនឹងធ្មេញដែលមិនដុះចេញ (unerupted tooth) 1. Odontogenic adenomatoid tumor 2. Periapical cemental dysplasia 3. Calcifying epithelial odontogenic tumor 4. Cementoblastoma
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(1) និង (3) ត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (1) និង (3) ត្រឹមត្រូវExplanation
The correct answer is (1) Odontogenic adenomatoid tumor and (3) Calcifying epithelial odontogenic tumor. Both of these conditions can cause an unerupted tooth.Rate this question:
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- 44.
ភាពធ្ងន់ធ្ងរនៃការរលាកជាលិកាជុំវិញធ្មេញ (periodontitis) គឺអាស្រ័យទៅនឹង 1. ភាពធន់បាននៃអ្នកទទួលរង 2. ការមានលំនឹងនៃ occlusion (balancing occlusal) 3. ការរំខាន (interferences) 4. ភាពធ្ងន់ធ្ងរនៃ បាក់តេរី (bacterial virulence)
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
Correct Answer
A. ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវExplanation
The correct answer is (4) ត្រឹមត្រូវ. This is because periodontitis is caused by the virulence of bacteria that infect the gums and cause inflammation and damage to the tissues supporting the teeth. The other options mentioned in the question, such as occlusion, interferences, and the condition of the person receiving treatment, may contribute to the development or progression of periodontitis, but they are not the primary cause of the disease. Therefore, the correct answer is that the primary cause of periodontitis is the bacterial virulence.Rate this question:
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- 45.
កោសិកាខាងក្រោមមួយណាដែលទាក់ទងទៅនឹងការឆ្លើយតបនៃភាពស៊ាំ (immune response) ទៅនឹងplaque នៅក្នុង periodontal pocket 1. Macrophages 2. Plasma cells 3. Lymphocytes 4. Neutrophils
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
Correct Answer
A. ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវExplanation
The correct answer is (1) Macrophages, (2) Plasma cells, and (3) Lymphocytes. These immune cells are all involved in the immune response to plaque in the periodontal pocket. Macrophages are responsible for phagocytosing and removing bacteria and debris in the pocket. Plasma cells produce antibodies to target and neutralize pathogens. Lymphocytes, including B cells and T cells, play a role in the adaptive immune response by recognizing and eliminating specific pathogens. Neutrophils, on the other hand, are not mentioned in relation to the immune response to plaque in the given information.Rate this question:
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- 46.
Organism (s) ដ៏សំខាន់ ចូលរួមជាមួយ chronic (adult) periodontitis គឺ៖ 1. Prevotella intermedia 2. Pseudomonas aeruginosa 3. Porphyromonas gingivalis 4. Heliobacter pilori
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(1) និង (3) ត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
Correct Answer
A. (1) និង (3) ត្រឹមត្រូវExplanation
The organisms that are most closely associated with chronic periodontitis are Prevotella intermedia and Porphyromonas gingivalis. Therefore, the correct answer is (1) and (3).Rate this question:
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- 47.
ការបន្តជក់បារី នឹងធ្វើអោយរបួសក្រសះបន្ទាប់ពីធ្វើការវះកាត់ ដោយសារៈ៖
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សសៃឈាមជុំវិញរួមតូច
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ស្នាមប្រលាក់ចេះតែមាន
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ការបង្ករជា plaque មានអាត្រាកើនឡើង
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ការបង្ករជា calculus មានអាត្រាកើនឡើង
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មានការរលាកសើៗដល់កោសិកាដោយសារការជក់បារី
Correct Answer
A. សសៃឈាមជុំវិញរួមតូចExplanation
The given answer states that the formation of plaque and calculus leads to bad breath. Plaque is a sticky film of bacteria that forms on the teeth and gums, and if not removed, it can harden into calculus (tartar). Both plaque and calculus can contribute to gum disease and tooth decay, which can cause bad breath. Therefore, the answer suggests that the accumulation of plaque and calculus is responsible for the bad breath.Rate this question:
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- 48.
Gingival hyperplasia អាចជួបប្រទះនៅលើអ្នកជម្ងឺដែលប្រើ 1. cyclosporine 2. nifedipine 3. phenytoin 4. carbamazepine
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ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវ
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(1) , (2) និង (3) ត្រឹមត្រូវ
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(1) និង (3) ត្រឹមត្រូវ
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(2) និង (4) ត្រឹមត្រូវ
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(4) ត្រឹមត្រូវ
Correct Answer
A. ចម្លើយទាំងអស់ខាងលើត្រឹមត្រូវExplanation
Gingival hyperplasia can occur in individuals who use cyclosporine, nifedipine, and phenytoin. This means that the correct answer is options (1), (2), and (3) are all correct. Option (4), carbamazepine, is not associated with gingival hyperplasia.Rate this question:
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- 49.
The epithelium ដែលគ្របដណ្តប់ទៅដំបៅនៃ chronic hyperplastic pulpitis ត្រូវបានគេជឿថាកើតចេញពី៖
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Epithelium នៃ oral mucosa
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Enamel epithelium ដែលថយចុះ
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ស្រទាប់ Odontoblastic
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Epithelial rests of Malassez
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សំណល់ នៃ the dental lamina
Correct Answer
A. Epithelium នៃ oral mucosaExplanation
The correct answer for this question is the epithelium of the oral mucosa. This is because chronic hyperplastic pulpitis is a condition that affects the pulp of the tooth, and the epithelium of the oral mucosa is the tissue that lines the inside of the mouth and covers the gum tissue. Therefore, it is likely that the chronic hyperplastic pulpitis originates from the oral mucosa epithelium.Rate this question:
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Mar 21, 2023Quiz Edited by
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Sep 22, 2020Quiz Created by
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