MCQs 121 Periodontology Dr. Sin Sowatha 2019
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Questions and Answers
- 1.
The distance between the apical extent of calculus and alveolar crest in human periodontal pockets is:?
- A.
1.97 mm (=33.16%).
- B.
0.2 mm.
- C.
3 mm.
- D.
4 mm.
- E.
0.02 mm.
Correct Answer
A. 1.97 mm (=33.16%).Explanation
The distance between the apical extent of calculus and alveolar crest in human periodontal pockets is 1.97 mm, which is equal to 33.16% of the given options. This means that the calculus is located approximately 1.97 mm below the alveolar crest.Rate this question:
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- 2.
Average human biologic is:?
- A.
2 mm.
- B.
3 mm.
- C.
4 mm.
- D.
1 mm.
- E.
0.5 mm.
Correct Answer
A. 2 mm.Explanation
The average human biologic is 2 mm. This suggests that the average measurement for a human biologic, which could refer to a biological sample or organism, is 2 mm in size.Rate this question:
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- 3.
The amount of gingival crevicular fluid is:?
- A.
Increased by tooth brushing and gingival massage.
- B.
Decreased when inflammation is present.
- C.
Increase by trauma from occlusion
- D.
Decreased by mastication of coarsee (គ្រោគគ្រាត គគ្រើម) food and smoking.
- E.
Decreased by ovulation and hormonal contraceptives.
Correct Answer
A. Increased by tooth brushing and gingival massage.Explanation
The amount of gingival crevicular fluid is increased by tooth brushing and gingival massage. These activities stimulate blood flow to the gums, leading to an increase in fluid production.Rate this question:
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- 4.
Dentogingival unit:?
- A.
Is junction epithelium and gingival fibers.
- B.
Is sulcular epithelium and gingival fibers
- C.
Is sulcular epithelium and periodontal fibers.
- D.
Is junction epithelium and periodontal fibers.
- E.
Is oral epithelium and gingival fibers.
Correct Answer
A. Is junction epithelium and gingival fibers.Explanation
The dentogingival unit refers to the connection between the tooth and the gums. It consists of the junctional epithelium, which is the epithelial attachment between the tooth surface and the gingiva, and the gingival fibers, which are collagen fibers that provide support and stability to the gingiva. Therefore, the correct answer is "Is junction epithelium and gingival fibers."Rate this question:
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- 5.
Excisional new attachment procedure involves:?
- A.
Internal bevel incision from the margin of the gingival apically to point below bottom of pocket.
- B.
A periodontal flap.
- C.
A free gingival graft
- D.
A regenerative osseous procedure.
- E.
Root planning.
Correct Answer
A. Internal bevel incision from the margin of the gingival apically to point below bottom of pocket.Explanation
The correct answer is internal bevel incision from the margin of the gingival apically to point below the bottom of the pocket. This procedure involves making an incision inside the gum line, starting from the margin of the gingiva and extending apically (towards the root of the tooth) to a point below the bottom of the pocket. This technique allows for better access to the affected area and facilitates the removal of diseased tissue.Rate this question:
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- 6.
Root planning is:?
- A.
Removal of disease cementum along with other root deposits.
- B.
Removal of material Alba and stains from root surface.
- C.
Removal of soft tissue wall of the periodontal pocket.
- D.
Removal of calculus and plaque from root surface.
- E.
Removal of food debris from tooth surface.
Correct Answer
A. Removal of disease cementum along with other root deposits.Explanation
Root planning is the process of removing disease cementum along with other root deposits. This procedure helps to eliminate the build-up of harmful substances on the root surface, such as calculus and plaque, which can contribute to periodontal disease. By removing these deposits, the root surface is smoothed and cleaned, promoting healing and preventing further damage to the surrounding tissues.Rate this question:
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- 7.
False gingival enlargement is caused by:?
- A.
Underlying dental and osseous structures.
- B.
Underlying drug induced gingival enlargement.
- C.
Underlying inflammation of periodontal ligament.
- D.
By epulis.
- E.
Sarcoidosis (រោគពកសាច់)
Correct Answer
A. Underlying dental and osseous structures.Explanation
False gingival enlargement refers to an increase in the size of the gums that is not caused by inflammation or disease. Instead, it is caused by underlying dental and osseous structures. This means that factors such as tooth positioning, dental restorations, or abnormalities in the bone structure can contribute to the appearance of enlarged gums. It is important to differentiate false gingival enlargement from true gingival enlargement, which is caused by inflammation or other pathological conditions.Rate this question:
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- 8.
Subclinical gingivitis is:?
- A.
Characterized by increased crevicular fluid flow and infiltration of sulcular and junction epithelium by polymorphonuclear leukocytes.
- B.
Characterized by vascular proliferation.
- C.
Characterized by predominantly lymphocytes microscopically.
- D.
Characterized by predominantly plasma cell microscopically.
- E.
Characterized by erythema, bleeding on probe.
Correct Answer
A. Characterized by increased crevicular fluid flow and infiltration of sulcular and junction epithelium by polymorphonuclear leukocytes.Explanation
Subclinical gingivitis is characterized by increased crevicular fluid flow and infiltration of sulcular and junction epithelium by polymorphonuclear leukocytes. This means that even though there may not be visible signs of inflammation or bleeding, there is still an increase in fluid flow and the presence of specific types of white blood cells in the gums. This suggests that there is an underlying inflammatory process occurring, even if it is not clinically evident.Rate this question:
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- 9.
Risk factors of periodontal disease are:?
- A.
Smoking, Diabetes, Poor Oral Hygiene, Osteoporosis, HIV/AIDS, Medications and Stress.
- B.
Smoking, Diabetes, Poor oral hygiene
- C.
Smoking ,Diabetes, Poor Oral Hygiene, Osteoporosis
- D.
Smoking ,Diabetes, Poor Oral Hygiene, Osteoporosis, HIV/AIDS
- E.
Smoking ,Diabetes, Poor Oral Hygiene, Osteoporosis, HIV/AIDS, Medication
Correct Answer
A. Smoking, Diabetes, Poor Oral Hygiene, Osteoporosis, HIV/AIDS, Medications and Stress.Explanation
The correct answer includes all the risk factors of periodontal disease mentioned in the question. Smoking, diabetes, poor oral hygiene, osteoporosis, HIV/AIDS, medications, and stress are all known risk factors for the development and progression of periodontal disease.Rate this question:
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- 10.
Dental plaque adheres to the tooth surface by?
- A.
Dextran (insoluble and sticky).
- B.
Bacteria,
- C.
Sucrose,
- D.
Epithelial cells
Correct Answer
A. Dextran (insoluble and sticky).Explanation
Dental plaque adheres to the tooth surface through dextran, which is a type of polysaccharide produced by bacteria in the mouth. Dextran is insoluble and sticky, allowing it to form a biofilm on the tooth surface. This biofilm provides a protective environment for bacteria to thrive and multiply, leading to the formation of dental plaque. The sticky nature of dextran helps to trap other bacteria and substances, such as food particles, leading to the accumulation and growth of plaque over time.Rate this question:
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- 11.
Heamatological disorder associated with periodontal disease is?
- A.
AIDS.
- B.
Hypophosphatesia,
- C.
Wegener’s granulomatosis,
- D.
Histiocytosis X
Correct Answer
A. AIDS.Explanation
The correct answer is AIDS. AIDS is a hematological disorder associated with periodontal disease. People with AIDS have weakened immune systems, making them more susceptible to infections, including periodontal disease. In addition, periodontal disease can also worsen the symptoms of AIDS and contribute to the progression of the disease. Therefore, AIDS is a hematological disorder that is commonly associated with periodontal disease.Rate this question:
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- 12.
Indications for muco-gingival surgery include the following except:?
- A.
Infrabony pocket.
- B.
A shallow vestibule.
- C.
Insufficient attached gingiva.
- D.
A high frenum attachment.
Correct Answer
A. Infrabony pocket.Explanation
Muco-gingival surgery is performed to correct issues related to the gums and the surrounding tissues. Infrabony pocket refers to a deep pocket that forms between the tooth and the bone, indicating bone loss. This condition typically requires periodontal treatment rather than muco-gingival surgery. Therefore, the correct answer is "Infrabony pocket."Rate this question:
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- 13.
Which one in Phase I therapy (non-surgery phase):?
- A.
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus correction of contributing and prosthodontics factors, antimicrobial therapy (Local or systemic), Occlusal therapy.
- B.
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus.
- C.
Periodontal surgery, including placement implant, Endodontic therapy.
- D.
Final restoration, Fixed and removable prosthodontics, Evaluation of restoration periodontal examination.
- E.
Plaque biofilm and removal calculus, periodontal condition (pocket, inflammation) occlusion and tooth mobility, other pathologic change.
Correct Answer
A. Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus correction of contributing and prosthodontics factors, antimicrobial therapy (Local or systemic), Occlusal therapy.Explanation
The correct answer includes a comprehensive list of Phase I therapy procedures that are aimed at controlling plaque biofilm and promoting oral health. These procedures include plaque biofilm control, diet control, scaling and root planning to remove plaque and calculus, correction of contributing and prosthodontic factors, antimicrobial therapy (local or systemic), and occlusal therapy. This combination of interventions addresses various aspects of periodontal health and helps to improve the overall condition of the patient's oral cavity.Rate this question:
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- 14.
A compound periodontal pocket is:?
- A.
Present on two or more tooth surfaces.
- B.
Spiral type of pocket.
- C.
Infrabony in nature.
- D.
No, right answer.
Correct Answer
A. Present on two or more tooth surfaces.Explanation
A compound periodontal pocket refers to a pocket that is present on two or more tooth surfaces. This means that the pocket extends between two or more teeth, affecting multiple areas of the gums and potentially leading to more severe periodontal disease. It is important to identify and treat compound periodontal pockets to prevent further damage to the teeth and gums.Rate this question:
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- 15.
Periodontal pocket wall between tooth and bone is:?
- A.
Infrabony pocket.
- B.
Suprabony pocket.
- C.
Gingival pocket.
- D.
Pseudo pocket.
Correct Answer
A. Infrabony pocket.Explanation
An infrabony pocket refers to a periodontal pocket where the bottom of the pocket is located below the level of the surrounding bone. This means that the pocket wall is between the tooth and the bone, indicating that the correct answer is "Infrabony pocket."Rate this question:
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- 16.
ឧបករណ៏តម្រូវការសម្រាប់ periodontal index:?
- A.
Light, Mouth mirror and explorer (periodontal probe).
- B.
Light.
- C.
Light and Mouth mirror.
- D.
Light, Mouth mirror and graduated probe.
Correct Answer
A. Light, Mouth mirror and explorer (periodontal probe).Explanation
The correct answer is "Light, Mouth mirror and explorer (periodontal probe)." These instruments are necessary for conducting a periodontal index, which is a measurement used to assess the health of the gums and supporting structures of the teeth. The light helps to illuminate the oral cavity, the mouth mirror is used to visualize hard-to-reach areas, and the explorer or periodontal probe is used to measure the depth of periodontal pockets and assess the presence of gum disease.Rate this question:
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- 17.
The earliest clinic sign of chronic gingival inflammation:?
- A.
Bleeding on probing.
- B.
Erythema.
- C.
Oedema.
- D.
Loss of stippling.
Correct Answer
A. Bleeding on probing.Explanation
The earliest clinic sign of chronic gingival inflammation is bleeding on probing. This occurs when the gums are inflamed and become more sensitive, causing them to bleed when pressure is applied during probing. This is an early indication of gingivitis, which is the first stage of gum disease. Erythema, oedema, and loss of stippling may also be present in gingivitis, but bleeding on probing is the most reliable and consistent sign.Rate this question:
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- 18.
A 27 year-old male presents to your office with the following signs: loss of interdental and marginal tippling, blue-red tissue color, the junction epithelium at the CEJ, and bleeding upon gentle probing. Your diagnosis is?
- A.
Chronic gingivitis.
- B.
Gingival recession
- C.
Systemic infection
- D.
Advanced periodontal disease, (periodontitis)
- E.
Melanin pigmentation
Correct Answer
A. Chronic gingivitis.Explanation
The signs described in the question, such as loss of interdental and marginal tippling, blue-red tissue color, junction epithelium at the CEJ, and bleeding upon gentle probing, are indicative of chronic gingivitis. Chronic gingivitis is characterized by inflammation of the gums, which can lead to tissue discoloration, bleeding, and recession. This condition is typically caused by poor oral hygiene, allowing plaque and bacteria to accumulate and irritate the gums. It is important to diagnose and treat chronic gingivitis promptly to prevent further progression to periodontitis.Rate this question:
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- 19.
Gingival abrasio9nj is caused by:?
- A.
Faulty brushing
- B.
Soft tissue friction
- C.
Tooth malposition
- D.
High frenal attachment
Correct Answer
A. Faulty brushingExplanation
Gingival abrasion refers to the wearing away of the gum tissue, and it is commonly caused by faulty brushing techniques. When a person brushes their teeth too aggressively or uses a toothbrush with hard bristles, it can lead to excessive pressure on the gums, causing them to become irritated and eventually wear away. This can result in gum recession and sensitivity. Soft tissue friction, tooth malposition, and high frenal attachment may contribute to gum problems, but they are not specifically mentioned as causes of gingival abrasion.Rate this question:
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- 20.
Which of the following is usually not caused by gingival recession:?
- A.
Periodontal abcess
- B.
Hypersensitivity
- C.
Root caries
- D.
Pulpal hyperaemia
Correct Answer
A. Periodontal abcessExplanation
Gingival recession is the process of the gum tissue pulling away from the teeth, exposing the roots. This can lead to various dental problems. Periodontal abscess, which is a localized infection in the gum tissue, is usually not caused by gingival recession. Instead, it is typically caused by deep periodontal pockets and bacterial buildup. Hypersensitivity, root caries (cavities on the root surface), and pulpal hyperemia (increased blood flow to the dental pulp) are all commonly associated with gingival recession.Rate this question:
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- 21.
30 years female pregnant patient, upon periodontal clinical examination, there was gingival bleeding on probing, edema and redness of gingival margin, and poor oral hygiene. Diagnosis of this case according to AAP 1999 periodontal diseases Classification is: ………?
- A.
Plaque induced gingival disease modified by systemic factor.
- B.
Non-Plaque induced gingival disease or lesions.
- C.
Plaque induced gingival diseases associated with dental plaque only.
Correct Answer
A. Plaque induced gingival disease modified by systemic factor.Explanation
The correct answer is "Plaque induced gingival disease modified by systemic factor." This is because the patient exhibits signs of gingival bleeding, edema, redness of the gingival margin, and poor oral hygiene, which are all characteristic of plaque-induced gingival disease. However, the presence of systemic factors, such as pregnancy, can modify the severity of the disease.Rate this question:
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- 22.
16 years boy, present clinically with attachment loss related to 1st Molars and Incisors only. Diagnosis of this case according to AAP 1999 periodontal diseases Classification is: ……?
- A.
Localized aggressive periodontitis.
- B.
Generalized aggressive periodontitis.
- C.
Generalized juvenile periodontitis.
- D.
Localized juvenile periodontitis.
Correct Answer
A. Localized aggressive periodontitis.Explanation
Based on the information provided, the correct diagnosis for this case according to the AAP 1999 periodontal diseases Classification is localized aggressive periodontitis. This is because the patient is a 16-year-old boy and has attachment loss related to the first molars and incisors only. Localized aggressive periodontitis is characterized by rapid attachment loss around first molars and incisors, typically affecting young individuals.Rate this question:
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- 23.
40 years diabetic patient, present clinically with periodontal attachment loss and diagnosed as having periodontitis. According to AAP 1999 classification of periodontal diseases, the type of periodontitis in this case is:?
- A.
Chronic periodontitis modified by systemic condition.
- B.
Aggressive periodontitis.
- C.
Periodontitis as a manifestation of systemic disease.
Correct Answer
A. Chronic periodontitis modified by systemic condition.Explanation
Based on the information provided, the patient is a 40-year-old diabetic with periodontal attachment loss, which is a characteristic of chronic periodontitis. However, the presence of a systemic condition (diabetes) modifies the presentation of the periodontitis, making it chronic periodontitis modified by a systemic condition. This means that the patient's diabetes has contributed to the development or progression of their periodontal disease.Rate this question:
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- 24.
Periodontal pockets can BEST be detected by: ……………?
- A.
Probing the sulcular area.
- B.
Radiographic detection
- C.
The color of the gingival
- D.
The contour of the gingival margin
Correct Answer
A. Probing the sulcular area.Explanation
Periodontal pockets are pockets that form between the gum and the tooth as a result of gum disease. Probing the sulcular area refers to using a dental probe to measure the depth of these pockets. By gently inserting the probe into the space between the gum and tooth, a dentist or dental hygienist can determine the depth of the pocket. This is the most accurate and reliable way to detect periodontal pockets and assess the severity of gum disease. Radiographic detection, the color of the gingival, and the contour of the gingival margin may provide some information about the health of the gums, but they are not as specific or accurate as probing the sulcular area.Rate this question:
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- 25.
Scaling process removes: ………………………?
- A.
Calculus and Plaque
- B.
Calculus
- C.
Plaque
- D.
Non, Right answer
Correct Answer
A. Calculus and PlaqueExplanation
The scaling process removes both calculus and plaque. Calculus is a hardened form of dental plaque that forms on the teeth and can only be removed by professional cleaning. Plaque, on the other hand, is a sticky film of bacteria that forms on the teeth and can be removed through regular brushing and flossing. Therefore, during the scaling process, both calculus and plaque are targeted and removed to improve oral health.Rate this question:
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- 26.
Active haemorrhage has to be first controlled by: ……………………..?
- A.
Pressure application and electro-coagulation
- B.
Pressure application
- C.
Electro congelation
- D.
None of the above
Correct Answer
A. Pressure application and electro-coagulationExplanation
Active haemorrhage refers to a situation where there is ongoing bleeding. In order to control this bleeding, pressure application and electro-coagulation are effective methods. Pressure application helps to stop bleeding by applying direct pressure on the wound, which helps to compress the blood vessels and reduce blood flow. Electro-coagulation involves using an electrical current to cauterize or seal off blood vessels, stopping the bleeding. By combining these two methods, active haemorrhage can be effectively controlled.Rate this question:
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- 27.
Which one of the following is a surgical sickle?
- A.
Ball
- B.
Morse
- C.
Jaquette
- D.
NEV!-2
Correct Answer
A. BallExplanation
A surgical sickle is a type of surgical instrument that is used for cutting and dissecting tissue during surgical procedures. The options provided include "Ball", "Morse", "Jaquette", and "NEV!-2". Among these options, "Ball" is the most likely choice for a surgical sickle as it is commonly used in surgical procedures for cutting and dissecting tissue. "Morse", "Jaquette", and "NEV!-2" are not typically associated with surgical sickles.Rate this question:
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- 28.
Chisel is sharpened with: ……………………………..?
- A.
Push stroke
- B.
Pull stroke
- C.
Pull stroke and Push stroke
- D.
None, answer are correct
Correct Answer
A. Push strokeExplanation
The correct answer is "Push stroke." When sharpening a chisel, a push stroke is used. This involves pushing the chisel against the sharpening stone or file in a forward motion. This technique helps to remove material from the chisel's edge and create a sharp cutting surface. Pull strokes are not typically used for sharpening chisels as they can be less effective and may even damage the chisel's edge. Therefore, the correct method for sharpening a chisel is to use a push stroke.Rate this question:
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- 29.
Instrument used for supra-gingival scaling is: …………………….?
- A.
Sickle, Curette and Hoe
- B.
Sickle
- C.
Curette
- D.
Hoe
Correct Answer
A. Sickle, Curette and HoeExplanation
The instrument used for supra-gingival scaling is a combination of a sickle, curette, and hoe. These instruments are used by dental professionals to remove plaque and tartar from the surface of the teeth, specifically above the gum line. The sickle, curette, and hoe have different shapes and angles that make them effective in accessing and removing deposits from different areas of the teeth.Rate this question:
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- 30.
The primary predisposing factor in ANUG: ………………………?
- A.
Plaque
- B.
Malnutrition
- C.
Psychological stress
- D.
Smoking
Correct Answer
A. PlaqueExplanation
The primary predisposing factor in ANUG is plaque. ANUG, or Acute Necrotizing Ulcerative Gingivitis, is a severe form of gum disease that is characterized by painful, ulcerated gums. Plaque, a sticky film of bacteria that forms on the teeth, is the main cause of gum disease. When plaque is not properly removed through regular brushing and flossing, it can irritate and inflame the gums, leading to ANUG. Therefore, plaque buildup is the primary factor that predisposes individuals to develop this condition.Rate this question:
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- 31.
Tooth mobility caused by which of the following is not likely to be corrected: ….?
- A.
Loss of alveolar bone
- B.
Trauma from occlusion
- C.
Inflammation in periodontal ligament
- D.
Trauma from occlusion, Inflammation in periodontal ligament and Loss of alveolar bone
Correct Answer
A. Loss of alveolar boneExplanation
Tooth mobility is caused by various factors, including trauma from occlusion and inflammation in the periodontal ligament. However, loss of alveolar bone is not likely to be corrected and can lead to permanent tooth mobility. Alveolar bone provides support and stability to the teeth, and its loss can result in a lack of anchorage for the teeth, leading to mobility. Therefore, loss of alveolar bone is the correct answer as it is not likely to be corrected and can contribute to tooth mobility.Rate this question:
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- 32.
New attachment is possible for: ………………?
- A.
Vital teeth and non- Vital teeth
- B.
Vital teeth
- C.
Non-vital teeth
- D.
Non, correct answer
Correct Answer
A. Vital teeth and non- Vital teethExplanation
The new attachment is possible for both vital teeth and non-vital teeth.Rate this question:
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- 33.
Which of the following scaler is used for crushing of calculus: …………?
- A.
File
- B.
Sickle
- C.
Curette
- D.
Hoe
Correct Answer
A. FileExplanation
A file is used for crushing of calculus. A file is a tool with a rough surface that is used to remove material by rubbing it against a surface. In the context of crushing calculus, a file can be used to scrape and break down the hard deposits of calculus on teeth or other surfaces. A file's rough surface helps to effectively crush and remove the calculus, making it the correct tool for this purpose.Rate this question:
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- 34.
Cavitation is a term used in relation to: …………………?
- A.
Ultrasonic scaling
- B.
Osseous surgery
- C.
Curette
- D.
Furcation treatment
Correct Answer
A. Ultrasonic scalingExplanation
Cavitation is a term used in relation to ultrasonic scaling. This procedure involves the use of high-frequency sound waves to remove plaque and tartar from the teeth. The ultrasonic scaler creates tiny bubbles in the water used during the procedure, and when these bubbles collapse, they produce a powerful cleaning action that helps to remove the buildup on the teeth. This process is known as cavitation.Rate this question:
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- 35.
Linear action of the tip is feature of: …………………?
- A.
Piezo scaler
- B.
Sonic scaler
- C.
Magnetostrictive
- D.
All of answer
Correct Answer
A. Piezo scalerExplanation
The linear action of the tip is a feature of the Piezo scaler.Rate this question:
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- 36.
Wire edge is produced in instruments by sharping strokes that are: …………….?
- A.
Away from cutting edge
- B.
Towards cutting edge
- C.
Away from cutting edge and Towards cutting edge
- D.
All of The answer
Correct Answer
A. Away from cutting edgeExplanation
When sharpening strokes are made away from the cutting edge, it creates a wire edge on the instrument. This wire edge is a thin, weak, and flexible metal burr that is formed during the sharpening process. It is important to remove this wire edge after sharpening to ensure the instrument's cutting edge is clean and sharp. Sharpening strokes made towards the cutting edge can actually damage the instrument and dull the cutting edge. Therefore, the correct answer is "Away from cutting edge."Rate this question:
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- 37.
Which one of the following scalers is actvated with push motion: ……………..?
- A.
Chisel
- B.
Sickle
- C.
Currette
- D.
Hoe
Correct Answer
A. ChiselExplanation
A chisel is a hand tool that is activated with a push motion. It is used for cutting or shaping wood, metal, or stone by driving the blade into the material with a hammer or mallet. The other options, such as a sickle, curette, or hoe, are not typically activated with a push motion.Rate this question:
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- 38.
Two points contact is essential for: …………………………..?
- A.
Hoe
- B.
Sickle
- C.
Currette
- D.
Chisel
Correct Answer
A. HoeExplanation
Two points contact is essential for a hoe because it allows for better leverage and stability when digging or chopping into the soil. The two points on the hoe's blade penetrate the ground simultaneously, providing balance and control while working in the garden or field. This design feature helps to efficiently break up soil, remove weeds, and cultivate the land. The other tools listed (sickle, curette, chisel) do not necessarily require two points of contact for their intended use.Rate this question:
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- 39.
Ultrasonic scaling is done with: ………………………………?
- A.
Overlapping horizontal strokes
- B.
Nonoverlapping vertical strokes
- C.
Overlapping vertical strokes
- D.
Nonoverlapping horizontal strokes
Correct Answer
A. Overlapping horizontal strokesExplanation
Ultrasonic scaling is a dental procedure that involves using high-frequency sound waves to remove plaque and tartar from the teeth. The correct answer, overlapping horizontal strokes, refers to the technique used during the scaling process. This technique involves moving the ultrasonic scaler in a back-and-forth motion along the gum line, overlapping each stroke to ensure thorough cleaning. By using overlapping horizontal strokes, the dental professional can effectively remove plaque and tartar buildup, promoting better oral health.Rate this question:
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- 40.
Which of the following is a clinical indication for microbial analysis of plaque: .?
- A.
All of answer
- B.
Aggressive periodontitis
- C.
Refractory periodontitis
- D.
Periodontitis associated with systemic conditions
Correct Answer
A. All of answerExplanation
Microbial analysis of plaque is indicated in all of the mentioned conditions. Aggressive periodontitis refers to a rapidly progressing form of periodontal disease, which may require microbial analysis to identify the specific bacteria causing the infection. Refractory periodontitis is a condition where the periodontal disease does not respond to conventional treatment, and microbial analysis can help determine if there are any resistant bacteria present. Periodontitis associated with systemic conditions, such as diabetes or HIV, may also benefit from microbial analysis to understand the impact of the systemic condition on the oral microbiota.Rate this question:
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- 41.
The most common factor that defects healing after periodontal treatment: ?
- A.
Plaque
- B.
Excessive manipulation of tissue
- C.
Inadequate blood supply
- D.
Foreign bodies
Correct Answer
A. PlaqueExplanation
Plaque is the correct answer because it is a sticky film of bacteria that forms on the teeth and gumline. If plaque is not properly removed through regular brushing and flossing, it can lead to gum disease and hinder the healing process after periodontal treatment. Plaque can cause inflammation and infection in the gums, preventing them from properly healing. Therefore, it is important to maintain good oral hygiene practices to prevent plaque buildup and promote successful healing after periodontal treatment.Rate this question:
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- 42.
Local treatment procedure that accelerates regeneration is: ………?
- A.
All answers
- B.
Scaling
- C.
Root planning
- D.
Curettage
Correct Answer
A. All answersExplanation
The correct answer is "All answers". This means that all of the mentioned treatment procedures (scaling, root planning, and curettage) can accelerate regeneration. These procedures are commonly used in dentistry to remove plaque, tartar, and infected tissue from the teeth and gums, promoting healing and regeneration of healthy tissues.Rate this question:
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- 43.
Repair that occurs after treatment of periodontal lesions is called: …?
- A.
Reattachment
- B.
New attachment
- C.
Epithelial adaptation
- D.
Repair
Correct Answer
A. ReattachmentExplanation
Reattachment refers to the process of reconnecting the periodontal tissues, including the cementum, periodontal ligament, and alveolar bone, to the root surface of the tooth after the treatment of periodontal lesions. This process can occur when the root surface is clean and free of contaminants, allowing for the reestablishment of a functional periodontal attachment. Reattachment is an important goal in periodontal therapy as it helps to restore the integrity and stability of the periodontium.Rate this question:
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- 44.
Periodontal disease is an important risk factor for all of the following except: ….?
- A.
Hypertension
- B.
Diabetes
- C.
Stocke
- D.
Premature delivery
Correct Answer
A. HypertensionExplanation
Periodontal disease is a risk factor for various health conditions, including diabetes, premature delivery, and cardiovascular diseases. However, there is no strong evidence to suggest a direct link between periodontal disease and hypertension. While there may be some association between the two, it is not considered a significant risk factor for developing hypertension.Rate this question:
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- 45.
Maintenance phase should start after: ………………….?
- A.
Phase I
- B.
Preliminary phase
- C.
Phase II
- D.
Phase III
Correct Answer
A. Phase IExplanation
The maintenance phase should start after Phase I. This is because Phase I, also known as the preliminary phase, is the initial stage of a project where the feasibility and basic requirements are assessed. Once this phase is completed, the maintenance phase begins, which involves the ongoing support, updates, and enhancements of the project. Therefore, Phase I serves as the foundation for the maintenance phase to ensure the project is stable and ready for long-term maintenance.Rate this question:
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- 46.
The inter-dental aid to be used when the embrasure is filled with inter-dental papilla: ………?
- A.
Dental floss
- B.
Wooden tip
- C.
Plastic tip
- D.
No, answer correct
Correct Answer
A. Dental flossExplanation
When the embrasure is filled with inter-dental papilla, the best inter-dental aid to use is dental floss. Dental floss is a thin thread that can easily slide between teeth and remove plaque and food debris from the inter-dental spaces. It is effective in cleaning the area even when the inter-dental papilla is present, ensuring proper oral hygiene and preventing gum diseases. Wooden tip and plastic tip aids may not be able to reach the inter-dental spaces effectively in this situation.Rate this question:
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- 47.
Which of the following is a more common expression of gingivae: …………?
- A.
Color change
- B.
Bleeding
- C.
Increase pocket depth
- D.
Mobility
Correct Answer
A. Color changeExplanation
Color change is a more common expression of gingivae because it refers to a visible alteration in the color of the gums. This can occur due to various factors such as inflammation, infection, or poor oral hygiene. Bleeding, increase in pocket depth, and mobility are also associated with gingivae issues, but color change is a more commonly observed symptom.Rate this question:
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- 48.
The prognosis for smoker with severe periodontitis, when he stops smoking: …?
- A.
Fair
- B.
Good
- C.
Poor
- D.
Quetionable
Correct Answer
A. FairExplanation
The prognosis for a smoker with severe periodontitis is considered fair when they stop smoking. Quitting smoking can significantly improve the overall health of the gums and reduce the progression of periodontal disease. However, the severity of the existing periodontitis may still have an impact on the long-term prognosis, hence the fair prognosis. It is important for the individual to receive appropriate dental treatment and maintain good oral hygiene practices to further improve their prognosis.Rate this question:
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- 49.
The most common factor that defect healing after periodontal treatment: …?
- A.
Plaque
- B.
Excessive manipulation
- C.
Inadequate blood supply
- D.
Foreign bodies
Correct Answer
A. PlaqueExplanation
Plaque is the correct answer because it is the primary cause of periodontal disease. After periodontal treatment, if plaque is not properly controlled, it can lead to the recurrence of infection and inflammation, preventing proper healing. Plaque contains harmful bacteria that can damage the gums and supporting structures of the teeth, causing defects in the healing process. Therefore, maintaining good oral hygiene and removing plaque through regular brushing and flossing is essential for successful healing after periodontal treatment.Rate this question:
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- 50.
What the usefulness is of radiographs in periodontal?
- A.
Bone loss in furcation areas and Width of periodontal ligament
- B.
Situation of gingival
- C.
Width of periodontal ligament
- D.
Trauma the pulp of tooth
Correct Answer
A. Bone loss in furcation areas and Width of periodontal ligamentExplanation
Radiographs are useful in periodontal treatment because they can help identify bone loss in furcation areas and assess the width of the periodontal ligament. Bone loss in furcation areas is an important indicator of periodontal disease progression and can help determine the severity of the condition. The width of the periodontal ligament can also provide valuable information about the health of the tooth and its supporting structures. By evaluating these factors, radiographs can aid in diagnosis, treatment planning, and monitoring the progress of periodontal therapy.Rate this question:
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