Periodontics Periodontics SDLE MCQ | Part 1 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 0% 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 Periodontics Periodontics SDLE MCQ | Part 1 DentQuiz SDLE Mock Exam Instruction To mark a question and come back to it later, click the Bookmark icon. For the best experience, use a computer and switch to full screen button (from the top left corner). You can review and change your answers before clicking Next. Explanations will appear after each question to help you understand the correct answer. Your results will be shown right after you finish the exam. This is a fresh attempt — previous answers or bookmarks won't be saved. The source of the questions and answers is recent Rafee’ Al-Maqam files. Special thanks to رفيع المقام. Answers are based on colleagues best efforts and may not be 100% accurate. If you believe an answer is incorrect, please click the Report button to let us know. Please fill in your details to continue NameEmailPhone Number 1 / 50 Category: Periodontics 1) A red line at the marginal gingiva is observed. What is the management? Antibiotics Scaling Gingivectomy Gingivoplasty Scaling is the first step in managing marginal gingival inflammation. 2 / 50 Category: Periodontics 2) A patient has an open contact between teeth #25 and #26 with localized moderate periodontitis. What is the cause? Trauma Calculus buildup Poor oral hygiene Open contact Open contacts can lead to food impaction and plaque accumulation, causing periodontitis. 3 / 50 Category: Periodontics 3) What determines the type of floss to be used for a patient? Proximal contact tightness Roughness of contact Manual dexterity Patient preference Patient preference is a key factor in determining the type of floss to use. 4 / 50 Category: Periodontics 4) When cementum is denuded, exposing dentin, what is the likely cause? Developmental defect Caries Trauma Vertical root fracture Vertical root fractures can expose dentin and create communication between pulp and PDL. 5 / 50 Category: Periodontics 5) What is observed in healthy gingiva histologically? Abundant PMNs Mild lymphocytes No inflammatory cells Plasma cells Healthy gingiva shows mild lymphocytes without significant inflammation. 6 / 50 Category: Periodontics 6) What is the best type of floss for a dental bridge? Water flosser Dental tape Superfloss Interdental brush Superfloss is designed to clean under dental bridges effectively. 7 / 50 Category: Periodontics 7) After active treatment for severe periodontitis, residual pockets >5 mm indicate what? Advanced periodontitis Low chance of recurrence Healing High chance of recurrence Residual pockets >5 mm indicate a high risk of periodontitis recurrence. 8 / 50 Category: Periodontics 8) A patient needs crown lengthening but has a short root trunk. What is the main concern? Root fracture Cause sensitivity Damage the bifurcation area Perforation in furcation area Short root trunks increase the risk of perforation during crown lengthening. 9 / 50 Category: Periodontics 9) A patient is unsatisfied with their short teeth. What is the best treatment? Veneers Crown lengthening and crown Orthodontics Crown lengthening alone Crown lengthening alone can improve the appearance of short teeth without crowns. 10 / 50 Category: Periodontics 10) Which instrument is used to check root surface smoothness after scaling? Mirror Hoe Explorer Chisel An explorer is used to detect roughness on root surfaces after scaling. 11 / 50 Category: Periodontics 11) A patient with NUG (necrotizing ulcerative gingivitis) has a high fever. What is the first step in treatment? Supra scaling and antibiotics Pain management Deep scaling OHI and mouthwash Supra scaling and antibiotics are essential for managing NUG with systemic symptoms. 12 / 50 Category: Periodontics 12) A patient with Stillman cleft and nail-biting habits has recession near the MGJ. What is the treatment? Connective tissue graft Flap surgery Gingivectomy RMGIC Connective tissue grafts are effective for treating recession near the MGJ. 13 / 50 Category: Periodontics 13) A patient on phenytoin has gingival growth. What is the treatment? Scaling Gingivectomy Changing the drug Consult physician and plaque control Consulting the physician and improving plaque control are essential in managing drug-induced gingival growth. 14 / 50 Category: Periodontics 14) Interdental inflammation between teeth #11, #12, and #13 is classified as what? Generalized gingivitis Localized diffuse Localized marginal Localized papillary gingivitis Localized papillary gingivitis is confined to the interdental papilla. 15 / 50 Category: Periodontics 15) A patient with NUG and high fever. What should be done on the first visit? Pain management Supracrestal scaling and antibiotics Deep scaling Oral hygiene and mouthwash Supracrestal scaling and antibiotics are critical for managing NUG with systemic symptoms. 16 / 50 Category: Periodontics 16) A radiograph shows bone loss between the roots of a molar. What type of bone loss is this? Interradicular bone loss Horizontal bone loss Vertical bone loss Interdental bone loss Interradicular bone loss occurs between the roots of multi-rooted teeth. 17 / 50 Category: Periodontics 17) A patient has grade 1 mobility in lower teeth, calculus, and PD of 5 mm. What is the treatment? Extraction Scaling and root planning Splinting Antibiotics Scaling and root planning are the first steps in managing periodontal disease. 18 / 50 Category: Periodontics 18) What is the grade of fremitus when movement is palpable but not visible? Grade 1 Grade 4 Grade 2 Grade 3 Grade 2 fremitus is palpable but not visibly noticeable. 19 / 50 Category: Periodontics 19) Overhangs on two teeth with localized bone loss. What is the main etiologic factor? Poor restoration Calculus Plaque Occlusal trauma Plaque accumulation due to overhangs is the primary cause of localized bone loss. 20 / 50 Category: Periodontics 20) Which tooth is most difficult to access during furcation treatment? 2nd max molar 1st mand molar 1st max molar 2nd mand molar The 1st max molar is often the most challenging due to its complex root anatomy. 21 / 50 Category: Periodontics 21) A clinical picture shows a periodontal abscess with pus discharge. What is the treatment? Incision and drainage Extraction RCT Observe Incision and drainage are necessary to manage a periodontal abscess with pus. 22 / 50 Category: Periodontics 22) Which cells are responsible for bone resorption and remodeling? Osteoblast Fibroblast Osteocyte Osteoclast Osteoclasts are responsible for bone resorption, while osteoblasts aid in bone formation. 23 / 50 Category: Periodontics 23) Which tooth is most difficult to access during periodontal surgery? 2nd max molar Lower molar 1st maxillary premolar Maxillary distobuccal root of 1st molar The 1st maxillary premolar is often difficult to access due to its position and root structure. 24 / 50 Category: Periodontics 24) A patient has very dark staining on all teeth. What is the best treatment? Whitening Crown lengthening alone Crown lengthening and crown Veneers Dark staining often requires crowns for full coverage and aesthetic improvement. 25 / 50 Category: Periodontics 25) What is found in healthy gingival tissue? Moderate lymphocytes Plasma cells Mild lymphocytes Severe lymphocytes Healthy gingiva contains mild lymphocytes as part of normal immune surveillance. 26 / 50 Category: Periodontics 26) A short trunk of tooth #27 requires crown lengthening. What is the main concern? Root fracture Furcation invasion Biologic invasion Pulp exposure Furcation invasion is a concern when performing crown lengthening on short roots. 27 / 50 Category: Periodontics 27) Which bacteria are associated with periodontitis? P. gingivalis S. mutans A.A T. forsythia T. forsythia is a key pathogen associated with periodontitis. 28 / 50 Category: Periodontics 28) A tooth with grade II buccal furcation involvement. What is the best treatment? Furcation plasty Root resection Tunnel preparation GTR Guided tissue regeneration (GTR) is effective for treating furcation involvement. 29 / 50 Category: Periodontics 29) Which bacteria are associated with gingivitis? A.A Gram+ Gram- T. forsythia Gram-negative bacteria are commonly associated with gingivitis. 30 / 50 Category: Periodontics 30) What is the Sri Lanka rapid rate of progression for periodontitis? 5% 10% 8% 12% The Sri Lanka rapid rate of progression is approximately 8%. 31 / 50 Category: Periodontics 31) What is ridge mapping used for? Determining ridge height and width Assessing periodontal pockets Measuring bone density Evaluating tooth mobility Ridge mapping is used to determine the height and width of the alveolar ridge. 32 / 50 Category: Periodontics 32) Which tooth is most difficult to access during periodontal surgery? Maxillary 1st molar 2nd max molar Mandibular molar 1st maxillary premolar The 1st maxillary premolar is often difficult to access due to its position and root structure. 33 / 50 Category: Periodontics 33) Which of the following indicates resolution of gingival inflammation? Lipoxins Prostaglandin Histamine Lysozyme Lipoxins are mediators that help resolve inflammation. 34 / 50 Category: Periodontics 34) An 85-year-old with uncontrolled diabetes and 50% bone loss. What is the management? SRP and OHI every 2 months SRP and OHI every 6 months SRP and OHI every 3 weeks SRP and antibiotics Regular scaling and root planning (SRP) and oral hygiene instructions (OHI) are essential for managing periodontitis in diabetic patients. 35 / 50 Category: Periodontics 35) What is the basis for choosing dental floss for a patient? Manual dexterity Roughness of contact Comfort Proximal contact tightness Comfort is the primary factor in choosing dental floss for a patient. 36 / 50 Category: Periodontics 36) A patient with anterior crowns presents with spacing and trauma from occlusion. What type of trauma is this? Combined Primary Secondary Persistent Primary occlusal trauma occurs due to excessive forces on a healthy periodontium. 37 / 50 Category: Periodontics 37) How much bone loss is required to appear on radiographs? 20-30% 10-20% 30-50% 50-70% Bone loss of 30-50% is typically visible on radiographs. 38 / 50 Category: Periodontics 38) A patient with plasma cell gingivitis. What is the treatment? Gingivectomy Allergen identification and removal Antibiotics Plaque control Identifying and removing the allergen is key in treating plasma cell gingivitis. 39 / 50 Category: Periodontics 39) A heavy smoker is defined as someone who smokes at least how many cigarettes per day? 40 cigarettes 10 cigarettes 20 cigarettes 30 cigarettes A heavy smoker is typically defined as someone who smokes at least 20 cigarettes per day. 40 / 50 Category: Periodontics 40) Why is caries risk assessment important during active periodontal therapy? Loss of coronal tooth Increased pocket depth Exposure of root surface Tooth mobility Caries risk assessment is crucial due to the exposure of root surfaces during periodontal therapy. 41 / 50 Category: Periodontics 41) A patient has PD of 3-5 mm and 20% bone loss. What is the diagnosis? Generalized stage I grade A Localized stage II grade B Generalized stage II grade B Localized stage I grade A Generalized stage II grade B periodontitis is characterized by 20% bone loss. 42 / 50 Category: Periodontics 42) What happens to gingival thickness with increasing age? Increase gingival thickness Decrease attached gingiva Decrease gingival thickness Increase attached gingiva With age, attached gingiva tends to increase due to changes in tissue structure. 43 / 50 Category: Periodontics 43) What is the modified pen grasp used for? Probing Suturing Flap elevation Scaling The modified pen grasp is commonly used for scaling and root planning. 44 / 50 Category: Periodontics 44) What type of periodontal disease is common in mouth breathers in the upper anterior area? Periodontitis Gingivitis Chronic inflammation and gingival enlargement Recession Mouth breathers often experience chronic inflammation and gingival enlargement. 45 / 50 Category: Periodontics 45) Which type of flap is good for biopsy and closed by primary intention? Triangular Semilunar Elliptical Envelope Elliptical flaps are commonly used for biopsies and allow primary closure. 46 / 50 Category: Periodontics 46) After removing a badly broken bridge and carious teeth with inflamed gingiva, what is the next step? Crown lengthening Disease control Extraction Take impression Disease control is necessary before proceeding with further treatment. 47 / 50 Category: Periodontics 47) A patient has recession of 1 mm on #43 and 2 mm on #44. What is the class of recession? Class 2 Class 1 Class 3 Class 4 Class 1 recession does not extend to the mucogingival junction. 48 / 50 Category: Periodontics 48) During crown lengthening, if the margin is 1 mm from the bone, what should be done? Wait and observe Close and suture Remove 2 mm more Perform a flap Removing an additional 2 mm ensures adequate biologic width for crown placement. 49 / 50 Category: Periodontics 49) What is the width of the canine according to the golden proportion if the lateral incisor is 4.4 mm? 8.0 mm 6.6 mm 5.8 mm 7.2 mm The golden proportion suggests the canine should be approximately 1.6 times the lateral incisor width. 50 / 50 Category: Periodontics 50) Which characteristic of the periodontal ligament (PDL) is responsible for shock absorption? Chemical Physical Mechanical Biological The PDL's physical properties allow it to absorb shock during mastication. 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