154 Periodotalogy- Prof. Sok Chea

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  • 1/154 Questions

    We need to consider which of the following in the treatment of refractory periodontal disease :?

    • Surgery
    • Antibiotic
    • Systemic health
    • Mechanical debridement
    • All of the above
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About This Quiz

This quiz, designed by Prof. Sok Chea, assesses key aspects of periodontology, including treatment strategies for chronic periodontitis, management of refractory periodontal disease, and surgical techniques such as Apically Positioned Flap. It is crucial for dental students specializing in periodontology.

154 Periodotalogy- Prof. Sok Chea - Quiz

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  • 2. 

    In an adult patient with chronic adult periodontitis the most successful approach to treatment is:?

    • Surgery

    • Extreme initial treatment followed by reviews every year

    • Initial periodontal therapy followed by maintenance therapy alone

    Correct Answer
    A. Initial periodontal therapy followed by maintenance therapy alone
    Explanation
    The most successful approach to treatment for an adult patient with chronic adult periodontitis is initial periodontal therapy followed by maintenance therapy alone. This approach involves a thorough cleaning of the teeth and gums to remove plaque and tartar buildup, followed by regular maintenance visits to prevent further disease progression. Surgery may be necessary in some cases, but it is not the most successful approach for all patients. Extreme initial treatment followed by yearly reviews may not provide long-term success in managing the condition.

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  • 3. 

    In an adult patient with chronic adult periodontitis the most successful approach to treatment is?

    • Surgery

    • Extreme initial treatment followed by reviews every year

    • Initial periodontal therapy followed by maintenance therapy alone

    Correct Answer
    A. Initial periodontal therapy followed by maintenance therapy alone
    Explanation
    The most successful approach to treatment for an adult patient with chronic adult periodontitis is initial periodontal therapy followed by maintenance therapy alone. This approach involves treating the initial infection and inflammation through procedures such as scaling and root planing, and then maintaining oral hygiene through regular cleanings and check-ups. This approach aims to control the disease and prevent further progression, leading to long-term success in managing chronic adult periodontitis.

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  • 4. 

    Necrotizing ulcerative periodontitis ?

    • Is associated with deep periodontal pocket

    • Is not responsive to any therapy

    • Leads to gingival recession due to faulty tooth brushing

    • Is associated with crater like depression at the tip of interdental papilla and vesicle formation

    Correct Answer
    A. Is associated with crater like depression at the tip of interdental papilla and vesicle formation
    Explanation
    Necrotizing ulcerative periodontitis is associated with a crater-like depression at the tip of the interdental papilla and vesicle formation. This condition is characterized by the destruction of the periodontal tissues, leading to the formation of ulcers and necrosis. The presence of a crater-like depression and vesicle formation is a key clinical feature of necrotizing ulcerative periodontitis, helping to differentiate it from other periodontal diseases.

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  • 5. 

    In the present of abundant plaque formation hyperplastic gingivitis can be associated with which of the following?

    • Cyclosporine

    • Procardia

    • Pregnancy

    • Phenytoin

    • All of them

    Correct Answer
    A. All of them
    Explanation
    In the presence of abundant plaque formation, hyperplastic gingivitis can be associated with all of the options given. Cyclosporine, Procardia, pregnancy, and phenytoin have all been linked to gingival overgrowth. Cyclosporine is an immunosuppressive drug used in organ transplant patients, Procardia is a calcium channel blocker used to treat high blood pressure, pregnancy can cause hormonal changes that can lead to gingival overgrowth, and phenytoin is an anticonvulsant medication that can also cause gingival overgrowth.

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  • 6. 

    In Periodontal disease, loss of which of the following fiber bundles are primarily associated in preventing the progressive downward proliferation of the junctional epithelium into the periodontal ligament and alveolar bone ?

    • Circular fiber

    • Interradicular fiber

    • Alveolar gingival fiber

    • Transseptal fiber

    Correct Answer
    A. Transseptal fiber
    Explanation
    Transseptal fibers are primarily associated with preventing the progressive downward proliferation of the junctional epithelium into the periodontal ligament and alveolar bone in Periodontal disease. These fibers run horizontally between adjacent teeth and help to maintain the position of the junctional epithelium, preventing its migration into the deeper tissues. Loss of transseptal fibers can lead to the progression of Periodontal disease and the breakdown of the supporting structures of the teeth.

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  • 7. 

    The mobility of the teeth is graded 3 if : ?

    • The mobility is 1mm

    • The mobility is in apico-occlusal direction and 1mm in labio-lingual direction

    • The mobility is in apico-occlusal direction and mobility is less than 1mm in labio-lingual direction

    • The mobility is less than 1mm

    • The mobility is in apico-occlusal direction and mobility in labio-lingual direction is more than 2mm

    Correct Answer
    A. The mobility is in apico-occlusal direction and mobility in labio-lingual direction is more than 2mm
    Explanation
    According to the given options, the correct answer is "The mobility is in apico-occlusal direction and mobility in labio-lingual direction is more than 2mm". This means that for the mobility to be graded as 3, the teeth must have movement in the apico-occlusal direction and the movement in the labio-lingual direction must be more than 2mm. The other options either do not meet the criteria for grading 3 mobility or have incorrect measurements.

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  • 8. 

    Furcation involvement is measure by: ?

    • WHO probe

    • CPITN probe

    • Michigan “O” probe

    • Periodontal explorer

    • Naber’s probe

    Correct Answer
    A. Naber’s probe
    Explanation
    Furcation involvement refers to the extent to which the roots of multi-rooted teeth are affected by periodontal disease. Naber's probe is specifically designed to measure the depth and severity of furcation involvement. It has a curved, fine tip that can easily access and navigate the furcation areas. The other probes listed, such as the WHO probe, CPITN probe, Michigan "O" probe, and periodontal explorer, are not specifically designed for measuring furcation involvement and may not be as effective in accurately assessing this condition.

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  • 9. 

    Periodontal attachment loss detect clinically: ?

    • When there is recession only.

    • When there is radiographic alveolar bone loss.

    • When there is true pocket only.

    • When there is recession and/or true pocket.

    Correct Answer
    A. When there is recession and/or true pocket.
    Explanation
    Periodontal attachment loss can be detected clinically when there is recession and/or true pocket. Recession refers to the exposure of the root surface due to the loss of gum tissue, while a true pocket is a deepening of the gum pocket around the tooth caused by the destruction of the supporting structures. Both recession and true pocket indicate the loss of attachment between the tooth and the surrounding tissues, making them important indicators of periodontal attachment loss. Therefore, when either of these conditions is present, it suggests the presence of periodontal attachment loss.

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  • 10. 

    60 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: ?

    • Aggressive periodontitis.

    • Chronic periodontitis modified by systemic condition.

    • Periodontitis as a manifestation of systemic disease

    Correct Answer
    A. Periodontitis as a manifestation of systemic disease
    Explanation
    Based on the given information, the patient is a 60-year-old diabetic with periodontal attachment loss. This suggests that the periodontitis is not aggressive, as aggressive periodontitis typically affects younger individuals. Additionally, the patient's periodontitis is not simply chronic periodontitis modified by a systemic condition, as the systemic condition (diabetes) is likely contributing to the manifestation of periodontitis. Therefore, the most appropriate classification for the type of periodontitis in this case is periodontitis as a manifestation of systemic disease.

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  • 11. 

    On human jaws there are anatomical areas which can be used as a source for bone graft harvest for periodontal regenerative surgical procedure, of those areas is/are: ?

    • Premaxilla.

    • MaxillaryTubersity.

    • External oblique ridge of the mandible.

    • Maxillary Tubersity and External oblique ridge of the mandible.

    Correct Answer
    A. Maxillary Tubersity and External oblique ridge of the mandible.
    Explanation
    The correct answer is Maxillary Tubersity and External oblique ridge of the mandible. These anatomical areas on the human jaws can be used as a source for bone graft harvest for periodontal regenerative surgical procedures.

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  • 12. 

    Which of the following does not come under phase 1 therapy?

    • Plaque control

    • Root planning

    • Restoration

    • Removable prosthodontic appliances

    Correct Answer
    A. Removable prosthodontic appliances
    Explanation
    Phase 1 therapy typically focuses on the initial treatment of periodontal disease and includes procedures such as plaque control, root planning, and restoration. Removable prosthodontic appliances, on the other hand, are not typically considered part of phase 1 therapy as they are more related to the replacement of missing teeth or the restoration of oral function.

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  • 13. 

    A patient returned on week after scaling and prophylaxis. Hard black deposits of calculus are noted in gingival margin. This indicates?

    • Patient is a heavy tea drinker

    • Poor maintenance and formation of new calculus

    • Blood clots which are not removed from tooth surface

    • Shrinkage of tissue due to reduction in inflammation after scaling

    Correct Answer
    A. Shrinkage of tissue due to reduction in inflammation after scaling
    Explanation
    The presence of hard black deposits of calculus in the gingival margin one week after scaling and prophylaxis suggests that there has been a reduction in inflammation after the procedure. This reduction in inflammation can cause shrinkage of the tissue, which may expose previously hidden calculus deposits. This is a common occurrence after scaling and prophylaxis, as the removal of plaque and calculus can lead to a decrease in inflammation and subsequent tissue shrinkage.

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  • 14. 

    Gingivectomy is done with ?

    • Kirkland knife

    • Potassium hydroxide

    • Electrosurgery

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above." Gingivectomy is a dental procedure that involves the removal of gum tissue. It can be performed using different methods depending on the specific case. The Kirkland knife is a type of surgical instrument commonly used for gingivectomy. Potassium hydroxide can be used as a chemical agent to remove excess gum tissue. Electrosurgery is another technique that utilizes high-frequency electric currents to remove or reshape gum tissue. Therefore, all three options mentioned are valid methods for performing gingivectomy.

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  • 15. 

    Which one of the following clinical findings has greatest effect on the type of incision to be given?

    • Frenum attachment

    • Depth of the vestibule

    • Probing depth

    • Amount of attached gingiva

    Correct Answer
    A. Amount of attached gingiva
    Explanation
    The amount of attached gingiva has the greatest effect on the type of incision to be given. The attached gingiva is the portion of the gum tissue that is firmly attached to the underlying bone. It provides stability and support to the teeth and helps to prevent recession. When performing a surgical procedure, such as a gingivectomy or crown lengthening, the amount of attached gingiva is an important consideration. Sufficient attached gingiva is necessary to ensure proper healing and to prevent complications such as recession or loss of attachment. Therefore, the amount of attached gingiva is a key factor in determining the appropriate type of incision to be made.

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  • 16. 

    If pre-treatment pocket depth is 6 mm and width of attached gingiva is 2 mm, what will be the estimated width of attached gingiva after treatment?

    • 2 mm

    • 4 mm

    • 6 mm

    • 5 mm

    Correct Answer
    A. 5 mm
    Explanation
    The estimated width of attached gingiva after treatment will be 5 mm. This can be determined by subtracting the pre-treatment pocket depth (6 mm) from the width of attached gingiva (2 mm) and adding the result to the pre-treatment pocket depth. Therefore, 2 mm - 6 mm + 6 mm = 2 mm + 6 mm = 8 mm. However, the width of attached gingiva cannot exceed the initial width, so the estimated width after treatment is 5 mm.

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  • 17. 

    According to Melcher concept, the regeneration of new attachment is from?

    • Gingival connective tissue

    • Alveolar bone

    • Junctionai epithelium

    • Periodontal ligament

    Correct Answer
    A. Periodontal ligament
    Explanation
    According to the Melcher concept, the regeneration of new attachment occurs from the periodontal ligament. The periodontal ligament is a specialized connective tissue that surrounds the tooth root and attaches it to the surrounding alveolar bone. It contains fibroblasts and other cells that are capable of generating new connective tissue and forming new attachment between the tooth and the surrounding tissues. This process is essential for the healing and repair of periodontal tissues after damage or disease.

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  • 18. 

    Biobrane is a commercially available?

    • Root matrix protein

    • Bone graft material

    • Non-bone graft material

    • Biodegradable membrane

    Correct Answer
    A. Biodegradable membrane
    Explanation
    Biobrane is a commercially available biodegradable membrane. It is used in various medical applications such as wound dressing and skin grafts. The membrane is designed to degrade over time, allowing for the natural healing process to occur. Biobrane provides a protective barrier for the wound while promoting tissue regeneration. It is a widely used and effective solution for managing and treating various types of wounds.

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  • 19. 

    In which of the following procedures, periodontal pack is not given?

    • Gingivectomy

    • Osteoplasty procedure

    • Osteoimplants with reattachment procedures

    • GTR procedures without osseous transplants

    Correct Answer
    A. GTR procedures without osseous transplants
    Explanation
    Periodontal pack is not given in GTR procedures without osseous transplants.

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  • 20. 

    What kind of tissues should compose of Full Thickness Flap?

    • Epithelium, Connective Tissue

    • Epithelium only

    • Periosteum only

    • Connective Tissue, and Periosteum

    • Epithelium, Connective Tissue, and Periosteum

    Correct Answer
    A. Epithelium, Connective Tissue, and Periosteum
    Explanation
    A full thickness flap should be composed of epithelium, connective tissue, and periosteum. This is because a full thickness flap involves the removal of all layers of tissue, including the outermost layer of epithelium, the layer of connective tissue beneath it, and the periosteum, which is the dense layer of connective tissue that covers the bone. By including all of these tissues in the flap, it ensures that the flap is complete and includes all necessary layers for successful grafting or transplantation.

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  • 21. 

    Where should releasing incisions be placed?

    • Over roots

    • In the middle of a papillae

    • Over the mental foramen

    • At the mid aspect of the root

    • Always at the line angles

    Correct Answer
    A. Always at the line angles
    Explanation
    Releasing incisions should always be placed at the line angles. This is because the line angles are the areas where two tooth surfaces meet, and making incisions at these points allows for better access and visibility during the surgical procedure. Placing the incisions at the line angles also helps in achieving proper flap adaptation and suturing, leading to better healing and reduced post-operative complications.

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  • 22. 

    What is (are) the most important anatomical structures to be respected during surgery?

    • Mental foramen

    • Greater palatine foramen and neuromuscular bundle

    • Incisive foramen

    • Lingual artery and nerve

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    During surgery, it is crucial to respect the anatomical structures to ensure successful outcomes and minimize complications. The mental foramen is important as it contains nerves and blood vessels supplying the lower lip and chin. The greater palatine foramen and neuromuscular bundle should be respected to avoid damage to the nerves and blood vessels supplying the palate. The incisive foramen houses nerves and blood vessels supplying the anterior teeth and should be respected. The lingual artery and nerve are vital structures supplying the tongue and should be carefully preserved. Therefore, all of the above structures are important and should be respected during surgery.

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  • 23. 

    A high lip line can have a multifactorial etiology?

    • Osseous

    • Muscular

    • Dental

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    A high lip line can have a multifactorial etiology because it can be caused by various factors, including osseous (related to the bone structure), muscular (related to the muscles around the lips), and dental (related to the position and shape of the teeth). These factors can individually or collectively contribute to a high lip line, where the upper lip is elevated more than usual when smiling or speaking. Therefore, all of the above options are correct as they represent different possible causes of a high lip line.

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  • 24. 

    Autografts refer to ?

    • The transplantation of tissue from one individual to a different individual

    • The transplantation of tissue from an animal to an individual

    • The transplantation of tissue from one individual to the same individual

    Correct Answer
    A. The transplantation of tissue from one individual to the same individual
    Explanation
    Autografts refer to the transplantation of tissue from one individual to the same individual. This means that tissue is taken from one part of a person's body and transferred to another part of their own body. Autografts are commonly used in medical procedures such as skin grafts and bone grafts, where tissue is taken from a healthy area and transplanted to a damaged or diseased area. This type of transplantation is preferred because it reduces the risk of rejection and complications that can occur when using tissue from another individual or animal.

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  • 25. 

    For human patients, all of these could be sources of xenografts except?

    • Pigs

    • Cows

    • Horses

    • Humans

    Correct Answer
    A. Humans
    Explanation
    Xenografts refer to the transplantation of living cells, tissues, or organs from one species to another. In the context of human patients, xenografts can be obtained from animals such as pigs, cows, and horses. However, humans cannot be a source of xenografts as they are the intended recipients of such grafts, not the donors. Therefore, the correct answer is humans.

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  • 26. 

    When should a soft tissue graft be considered as an appropriate treatment of gingival recession?

    • Probing extents beyond the mucogingival junction

    • Abnormal frenum attachment

    • Root sensitivity, root caries

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    A soft tissue graft should be considered as an appropriate treatment for gingival recession when probing extents beyond the mucogingival junction, abnormal frenum attachment, and root sensitivity or root caries are present. These factors indicate that the gingival recession is significant and may require intervention to prevent further complications such as tooth sensitivity, root decay, and compromised oral health. Therefore, all of the above conditions warrant the consideration of a soft tissue graft as a suitable treatment option.

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  • 27. 

    In terms of the treatment of the adult periodontitis patients: ?

    • The use of surgery in the treatment regimen is essential

    • The use of antibiotics in the treatment regimen is essential

    • The combined use of surgery and antibiotics proves increasingly effective in the treatment of these patients

    • All adult periodontitis patients can be treated successfully with scaling and root cleaning with or without surgery or antibiotic

    Correct Answer
    A. All adult periodontitis patients can be treated successfully with scaling and root cleaning with or without surgery or antibiotic
    Explanation
    The correct answer states that all adult periodontitis patients can be treated successfully with scaling and root cleaning, with or without surgery or antibiotics. This means that surgery or antibiotics are not essential for the treatment of adult periodontitis patients. The answer suggests that scaling and root cleaning alone can be effective in treating these patients, but surgery or antibiotics can also be used if necessary.

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  • 28. 

    When should a soft tissue graft be considered as an appropriate treatment of gingival recession?

    • Probing extents beyond the mucogingival junction

    • Abnormal frenum attachment

    • Root sensitivity, root caries

    • All above

    Correct Answer
    A. All above
    Explanation
    A soft tissue graft should be considered as an appropriate treatment of gingival recession when there are probing extents beyond the mucogingival junction, abnormal frenum attachment, and symptoms such as root sensitivity and root caries. These conditions indicate a significant amount of gum recession and potential damage to the roots, which can be effectively addressed through a soft tissue graft procedure.

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  • 29. 

    The following substance(s) can be used to condition the root surface prior to grafting?

    • EDTA

    • Tetracycline

    • Acidic acid

    • Nitric acid

    • EDTA, Tetracycline and Citric acid

    Correct Answer
    A. EDTA, Tetracycline and Citric acid
    Explanation
    EDTA, Tetracycline, and Citric acid can be used to condition the root surface prior to grafting. EDTA is a chelating agent that helps remove the smear layer and expose collagen fibers. Tetracycline is an antibiotic that helps in disinfection and promotes attachment of fibroblasts. Citric acid is an acidic agent that aids in demineralization and exposes dentin tubules. Using these substances before grafting helps prepare the root surface for better graft integration and success.

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  • 30. 

    Incision in the esthetic zone with regards to semi-lunar graft treatment of gingival recession: ?

    • Should whenever possible be vertical

    • Should where ever possible be made through thin connective tissue

    • Should initially be made of full thickness

    • Initially should be made at the mucogingival junction

    Correct Answer
    A. Initially should be made at the mucogingival junction
    Explanation
    The initial incision in the esthetic zone for semi-lunar graft treatment of gingival recession should be made at the mucogingival junction. This is because the mucogingival junction is the boundary between the attached gingiva and the alveolar mucosa, and making the incision at this point allows for better access and visibility during the procedure. Additionally, starting the incision at the mucogingival junction helps to preserve the blood supply to the graft and ensures a more esthetically pleasing outcome.

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  • 31. 

    Apical position flap was first introduced by ?

    • Neuman in 1918

    • Kirkland, O. in 1920

    • Nebers, Neuman in 1954

    • Nebers, C.L in 1954

    Correct Answer
    A. Nebers, C.L in 1954
  • 32. 

    Intracrevicular incision then the gingiva is retracted to expose the diseased root surfaces and the exposed root surfaces are subjected to mechanical debridement then the flap are replaced to their original position and sutured. This technic called. ?

    • Apical position flap

    • Original Widman flap

    • Modified Widman flap

    • Papilla preservation flap

    • Kirdland flap

    Correct Answer
    A. Kirdland flap
  • 33. 

    All the following are phases of periodontal treatment plan except: ?

    • Surgical phase

    • Maintenance phase

    • Non-surgical phase

    • Refractory phase

    Correct Answer
    A. Refractory phase
    Explanation
    The refractory phase is not a phase of periodontal treatment. The surgical phase involves surgical procedures to treat periodontal disease, while the non-surgical phase includes non-invasive treatments such as scaling and root planing. The maintenance phase focuses on regular check-ups and cleanings to prevent further progression of the disease. However, the refractory phase does not refer to any specific stage or treatment in periodontal therapy.

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  • 34. 

    Periodontium include all of the following: ?

    • Enamel, root periodontal ligaments and alveolar bone

    • Gum, alveolar bone, dentine and cementum

    • All of the above

    • Cementum, gum, alveolar bone and periodontal ligaments

    Correct Answer
    A. Cementum, gum, alveolar bone and periodontal ligaments
    Explanation
    The correct answer is "Cementum, gum, alveolar bone, and periodontal ligaments." The periodontium is the supporting structure of the teeth and includes the cementum (outer layer of the tooth root), gum (gingiva), alveolar bone (bone that surrounds and supports the teeth), and periodontal ligaments (connective tissue that attaches the tooth to the bone).

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  • 35. 

    Gracey curretes used to scale distal surface of posterior teeth are ?

    • Gracey curretes 1/2, 3/4 and 11/12

    • Gracey curretes 11/12, 13/14 and 5/6

    • Gracey curretes 7/8 and 9/10

    • Gracey curretes 13/14

    Correct Answer
    A. Gracey curretes 13/14
  • 36. 

    Gracey curretes used to scale mesial surface of posterior teeth are : ?

    • Gracey curretes 1/2, 3/4 and 11/12

    • Gracey curretes 11/12, 13/14 and 5/6

    • Gracey curretes 7/8 and 9/10

    • Gracey curretes 11/12

    Correct Answer
    A. Gracey curretes 11/12
    Explanation
    The correct answer is Gracey curretes 11/12. This is because Gracey curretes are dental instruments specifically designed for scaling and root planing. Each Gracey curette has a specific blade design and angulation that allows for effective removal of calculus and plaque from different tooth surfaces. The 11/12 Gracey curette is specifically used for scaling the mesial surface of posterior teeth, making it the most appropriate choice for this task.

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  • 37. 

    Periodontal surgery can be classified into many types, of those types is/are: ?

    • Transalveolar surgery, implant surgery, resective osseous surgery.

    • Gingival curettage, Periodontal flap, Surgical extraction.

    • Gingevectomy, Regenerative periodontal surgery, surgical closure of oro-antral fistula.

    • Periodontal flap surgery, periodontal plastic surgery, resective osseous surgery.

    Correct Answer
    A. Periodontal flap surgery, periodontal plastic surgery, resective osseous surgery.
    Explanation
    The correct answer is Periodontal flap surgery, periodontal plastic surgery, resective osseous surgery. These are all types of periodontal surgery that involve different techniques and procedures. Periodontal flap surgery involves lifting the gum tissue to access and clean the roots of the teeth. Periodontal plastic surgery is a cosmetic procedure that aims to improve the appearance of the gum tissue. Resective osseous surgery involves removing or reshaping the bone around the teeth to treat periodontal disease. These types of surgery are commonly performed by periodontists to treat various gum and bone-related issues.

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  • 38. 

    Adult patient present clinically with irregular thickness of buccal gingiva, a round diamond bur used to correct and establish a physiological gingival contour. The type of this procedure is/are:?

    • Gingivectomy.

    • Combined gingivoplasty & gingivectomy.

    • None of the above.

    • Gingivoplasty.

    Correct Answer
    A. Gingivoplasty.
    Explanation
    The correct answer is Gingivoplasty. Gingivoplasty is a surgical procedure used to reshape and contour the gingiva, or gum tissue, to establish a more natural and aesthetic appearance. In this case, the irregular thickness of the buccal gingiva is being corrected using a round diamond bur, which is a common tool used in gingivoplasty procedures. Gingivectomy involves the removal of gum tissue, but in this case, there is no mention of tissue removal, so gingivectomy is not the correct answer. Combined gingivoplasty and gingivectomy is also not the correct answer as only gingivoplasty is being performed.

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  • 39. 

    Curettage comes under?

    • Phase-II

    • Phase-Ill

    • Phase-IV

    • Phase-1

    Correct Answer
    A. Phase-1
    Explanation
    Curettage is a medical procedure that involves scraping or removing tissue from the lining of a body cavity or surface. It is commonly used in Phase-1 of clinical trials, which focuses on assessing the safety and tolerability of a new drug or treatment in a small group of healthy volunteers or patients. During this phase, researchers gather preliminary data on the drug's pharmacokinetics, dosage range, and potential side effects. Therefore, curettage is most likely to be performed during Phase-1 of clinical trials.

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  • 40. 

    Which of the following determines the amount of shrinkage of inflammed tissue after scaling and root planning?

    • Depth of pocket

    • Nature of bone loss

    • Type of instrument

    • Oedema in the tissue

    Correct Answer
    A. Oedema in the tissue
    Explanation
    Oedema in the tissue determines the amount of shrinkage of inflamed tissue after scaling and root planning. Oedema refers to the swelling caused by an accumulation of fluid in the tissues. In the context of dental scaling and root planning, oedema can occur as a result of inflammation in the gum tissues. After the procedure, as the inflammation subsides and the oedema decreases, the tissue can shrink back to its normal size. Therefore, the presence and severity of oedema play a crucial role in determining the amount of shrinkage that occurs.

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  • 41. 

    Subgingival curettage should provide favourable results in?

    • Fibrotic gingivitis

    • Infrabony pockets

    • None of the above

    • Oedematous gingivitis

    Correct Answer
    A. Oedematous gingivitis
    Explanation
    Subgingival curettage involves the removal of plaque and calculus from below the gumline. It is a common treatment for periodontal disease. Oedematous gingivitis is characterized by swollen, inflamed gums, which can be caused by poor oral hygiene. Subgingival curettage can help remove the irritants causing the inflammation and promote healing. Fibrotic gingivitis, on the other hand, is characterized by thickened, hardened gums and may require more extensive treatment. Infrabony pockets refer to deep pockets around the tooth root and may require surgical intervention. Therefore, the most favorable results for subgingival curettage are expected in oedematous gingivitis.

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  • 42. 

    The reshaping process of gingiva in the absence of periodontal pocket is?

    • Curettage

    • Gingivectomy

    • Flap operation

    • Gingivoplasty

    Correct Answer
    A. Gingivoplasty
    Explanation
    Gingivoplasty is the correct answer because it refers to the reshaping process of the gingiva (gums) without the presence of a periodontal pocket. This procedure is performed to improve the appearance of the gums, correct gum deformities, or create a more harmonious gum line. Curettage is the removal of diseased tissue from the periodontal pocket, while gingivectomy involves the surgical removal of gum tissue. Flap operation refers to a more extensive surgical procedure involving the lifting of gum tissue to access the underlying structures.

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  • 43. 

    Which of the following is most appropriate for l of therapy if periodontal surgery is needed in? mandibular anterior region

    • Gingivectomy

    • Subgingival curratage

    • Apically displaced flap

    • Periodontal flap for access

    Correct Answer
    A. Periodontal flap for access
    Explanation
    Periodontal flap for access is the most appropriate choice for therapy if periodontal surgery is needed in the mandibular anterior region. This procedure involves creating a flap of the gum tissue to gain access to the underlying structures, such as the bone and root surfaces, allowing for thorough cleaning and treatment. It provides better visibility and access to the affected area, making it suitable for surgical interventions in the mandibular anterior region. Gingivectomy, subgingival curettage, and apically displaced flap may not provide the same level of access and visibility required for effective treatment in this specific region.

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  • 44. 

    Which of the incisions is not followed in periodontal flap surgeries?

    • Crevicular

    • Interdental

    • Internal bevel

    • External bevel

    Correct Answer
    A. External bevel
    Explanation
    In periodontal flap surgeries, various incisions are made to access the underlying tissues. The crevicular, interdental, and internal bevel incisions are commonly used in these surgeries. However, the external bevel incision is not followed in periodontal flap surgeries. This incision involves cutting the tissue at an angle away from the tooth, which is not necessary in this type of surgery.

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  • 45. 

    The term gingival ablation indicates?

    • Gingival recession due to faulty tooth brushing

    • Gingival recession accentuated by prominent palatal root

    • Gingival recession due to friction from hard root

    • Gingival recession due to friction from soft tissue

    Correct Answer
    A. Gingival recession due to friction from soft tissue
    Explanation
    The term gingival ablation indicates gingival recession due to friction from soft tissue. This means that the gingiva (gums) have receded or pulled away from the teeth due to friction caused by the soft tissue, such as the lips or cheeks, rubbing against them. This can occur as a result of factors such as excessive force during tooth brushing or habits like biting or sucking on the lips.

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  • 46. 

    The outcome of results of laterally positioned flap depends on?

    • Presence of sufficient bone support at donor site

    • Thickness of attached gingiva at donor site

    • Width of attached gingiva at donor site

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The outcome of results of laterally positioned flap depends on the presence of sufficient bone support at the donor site, the thickness of attached gingiva at the donor site, and the width of attached gingiva at the donor site. These factors are crucial in ensuring the success of the flap procedure and achieving optimal healing and tissue regeneration.

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  • 47. 

    Subepithelial connective tissue graft was described by?

    • Steven Kwall

    • Sullivan and Atkins

    • Edel

    • Langer and Langer

    Correct Answer
    A. Langer and Langer
    Explanation
    Langer and Langer described the subepithelial connective tissue graft. This procedure involves taking a small piece of connective tissue from under the surface of the mouth and transplanting it to another area in the mouth to repair gum recession or improve the appearance of the gums. Their description of this technique has contributed to the advancement of periodontal surgery and has become a widely used method in dental practice.

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  • 48. 

    After placement of a free gingival graft first it undergoes?

    • Metaplasia

    • Hyperplasia

    • Dysplasia

    • Degeneration

    Correct Answer
    A. Degeneration
    Explanation
    After placement of a free gingival graft, it undergoes degeneration. This is because the graft tissue is subjected to a lack of blood supply and oxygen, leading to tissue breakdown and degeneration. This process is a normal part of the healing process after graft placement.

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  • 49. 

    Langer technique is used in?

    • Free soft tissue autografts

    • Fenestration operation

    • Vestibular extension operation

    • Subepithelial connective tissue grafts

    Correct Answer
    A. Subepithelial connective tissue grafts
    Explanation
    The Langer technique is used in subepithelial connective tissue grafts. This technique involves harvesting a graft from the subepithelial connective tissue layer and then placing it in the desired area to restore or improve the soft tissue. This method is commonly used in periodontal surgery to treat gum recession and enhance the aesthetics of the gumline.

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Quiz Review Timeline (Updated): May 23, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • May 23, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 10, 2020
    Quiz Created by
    Vuth
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