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Periodontics R11 Periodontics SDLE MCQ Facebook X LinkedIn Messenger Messenger WhatsApp Telegram Print Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 0% 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990 Periodontics R11 Periodontics SDLE MCQ 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 / 90 Category: Periodontics 1) Best instrument for subgingival calculus? Piezoscaler Gracey curette Sickle scaler Ultrasonic scaler Gracey curettes access subgingival areas effectively. 2 / 90 Category: Periodontics 2) Bone architecture with papilla loss exceeding other areas? Inverted architecture Flat architecture Reversed architecture Normal architecture Reversed architecture shows greater interdental than radicular bone loss. 3 / 90 Category: Periodontics 3) What is the universal curette’s working angle? 45 degrees 60 degrees 90 degrees 120 degrees 90 degrees is the standard working angle for universal curettes. 4 / 90 Category: Periodontics 4) Crown lengthening for tooth with 2mm KT and 3mm bone? Apical flap + bone removal Orthodontic extrusion Gingivectomy alone No treatment needed Requires osseous reduction to achieve biological width. 5 / 90 Category: Periodontics 5) Gracey 11/12 curette use? Lingual of #41 Distal of #36 Buccal of #24 Mesial of #36 Designed for mesial surfaces of posterior teeth. 6 / 90 Category: Periodontics 6) Which scaler has a unique angulation? Universal Sickle Bone file Gracey Gracey curettes have area-specific angled blades. 7 / 90 Category: Periodontics 7) If gingival margin is 2mm from CEJ and PD is 6mm, what is CAL? 8mm 4mm 6mm 2mm CAL = (Gingival margin to CEJ) + PD = 2 + 6 = 8mm. 8 / 90 Category: Periodontics 8) What is the yellowish material on teeth that can’t be rinsed off? Calculus Stains Plaque Food debris Plaque is the initial biofilm that adheres firmly to teeth. 9 / 90 Category: Periodontics 9) Attached gingiva boundaries? Interdental col to frenum CEJ to free margin Free groove to mucogingival line Sulcus base to bone crest Defined coronally by free groove and apically by mucogingival junction. 10 / 90 Category: Periodontics 10) Best flap for lesion distal to lower second molar? Semilunar Intrasulcular Envelope Pedicle Intrasulcular flaps provide optimal access to posterior lesions. 11 / 90 Category: Periodontics 11) Instrument modification for deep posterior pockets? Curved tip Smaller handle Longer terminal shank Thicker blade Extended shank improves access to posterior areas. 12 / 90 Category: Periodontics 12) Treatment for short anterior teeth with normal periodontium? No treatment needed Gingival grafts Composite bonding Esthetic crown lengthening Crown lengthening improves crown-to-root ratio for esthetics. 13 / 90 Category: Periodontics 13) Cause of swelling after scaling in diabetic patient? Infection Allergic reaction Unremoved calculus Trauma Residual subgingival calculus can cause delayed healing in diabetics. 14 / 90 Category: Periodontics 14) Main concern with excessive alcohol mouthwash use? Oral mucosal dryness Tooth staining Enamel demineralization Altered taste perception Alcohol causes xerostomia and disrupts oral microbiome balance. 15 / 90 Category: Periodontics 15) Treatment for diabetic patient with swelling and pus at #46? Antibiotics Incision and drainage Extraction SRP Scaling and root planing is first-line treatment for periodontal abscesses. 16 / 90 Category: Periodontics 16) Which probe has 3 sections? UNC probe WHO probe Marquis probe Williams probe Marquis probe features 3 sections (3-6-9mm markings). 17 / 90 Category: Periodontics 17) Risk for thin scalloped gingival phenotype? Pocket formation Hyperplasia No significant risk Recession Thin tissues are prone to recession from mechanical trauma. 18 / 90 Category: Periodontics 18) Which tooth is most difficult to scale? Upper 4 Upper canine Lower molar Distobuccal root of upper 7 Upper 4’s root anatomy makes scaling challenging. 19 / 90 Category: Periodontics 19) Gingival enlargement covering 3/4 crown is class? Class 3 Class 2 Class 1 Class 4 Class 3 covers >1/2 but not entire crown (Seymour classification). 20 / 90 Category: Periodontics 20) Example of digital periodontal probe? Pro-Depth All of above PerioTemp Florida probe Florida probe is the most widely used digital probing system. 21 / 90 Category: Periodontics 21) Difference between dehiscence and fenestration? Dehiscence: bone loss to apex Both involve gingival recession Fenestration: isolated bone loss No difference Fenestration is isolated bone loss without apical involvement. 22 / 90 Category: Periodontics 22) Why do dentists advise patients to brush dentures daily? To prevent cross infections To avoid inflammation To remove plaque To avoid bad smell Daily brushing prevents bacterial buildup causing bad odor. 23 / 90 Category: Periodontics 23) Treatment for excessive gingival display with short clinical crowns? Gingivectomy Crown lengthening Porcelain veneers Orthodontic extrusion Gingivectomy corrects excessive gingival display when no bone reduction needed. 24 / 90 Category: Periodontics 24) 60.58-year-old man is complaining from tooth mobility. The clinical examination revealed probing depths that range from 4 to 9 mm, clinical attachment loss of >5 mm and grade II to III mobility in most 23 of his teeth. The patient also smoked cigarettes 2 packs a day. Which of the following is the most likely diagnosis? Generalized Stage III Grade B periodontitis Localized Stage III Grade A periodontitis Generalized Stage III Grade C periodontitis Localized Stage III Grade C periodontitis Smoking + severe attachment loss indicates Grade C. 25 / 90 Category: Periodontics 25) Cause of bleeding post-laser gingivectomy? Allergic reaction Plaque accumulation Laser side effect Spontaneous bleeding Plaque-induced inflammation overrides laser benefits. 26 / 90 Category: Periodontics 26) Which tooth is most challenging for periodontal treatment? Lower second molar Lower central incisor Upper canine Upper first premolar Upper first premolar’s mesial root concavity complicates treatment. 27 / 90 Category: Periodontics 27) What treatment is needed after orthodontic removal? Crown RCT Restoration SRP Scaling and root planing (SRP) is essential after orthodontic treatment. 28 / 90 Category: Periodontics 28) What are the components of biological width? 1.5mm epithelium + 0.5mm CT 0.5mm epithelium + 1.5mm CT 2mm epithelium 1mm epithelium + 1mm CT Biological width consists of 1mm epithelium and 1mm connective tissue. 29 / 90 Category: Periodontics 29) What is the ideal angle for scaling? 45-90 degrees 20-30 degrees 0 degrees 10-15 degrees 45-90 degrees optimizes cutting efficiency. 30 / 90 Category: Periodontics 30) Complication of impacted canine exposure? Recession Pulp necrosis Ankylosis Root resorption Surgical trauma often causes labial gingival recession. 31 / 90 Category: Periodontics 31) What makes scaling and root planing difficult? Convergent and short roots Convergent and long roots Divergent and short roots Divergent and long roots Convergent and long roots are harder to instrument effectively. 32 / 90 Category: Periodontics 32) Key diagnostic difference between periapical/periodontal abscess? Swelling location Pain characteristics Tooth vitality Radiographic appearance Vitality testing is primary determinant (vital=periodontal, non-vital=periapical). 33 / 90 Category: Periodontics 33) Interpretation of furcation differences between #16 and #17? #16 has divergent roots #17 has longer roots #16 has fused roots #17 has shorter root trunk Shorter root trunks lead to more advanced furcation involvement. 34 / 90 Category: Periodontics 34) Diagnosis for pain after eating popcorn? Periodontal abscess Food impaction ANUG Gingival abscess Popcorn husks commonly cause traumatic gingival abscesses. 35 / 90 Category: Periodontics 35) Smoking’s effect on bone? Accelerates resorption Increases density No significant effect Causes osteosclerosis Smoking impairs osteoblast function and angiogenesis. 36 / 90 Category: Periodontics 36) What is an indication for resective osseous surgery? Furcation involvement One-wall defect Gingival recession Three-wall defect Three-wall defects respond well to resective osseous surgery. 37 / 90 Category: Periodontics 37) Boundary between attached/unattached gingiva? Interdental papilla Free gingival groove Mucogingival junction Alveolar mucosa Free gingival groove marks the apical border of unattached gingiva. 38 / 90 Category: Periodontics 38) What procedure is shown in the edentulous area post-surgery? GTR Flap surgery Bone grafting GBR Guided Bone Regeneration (GBR) is used for ridge augmentation. 39 / 90 Category: Periodontics 39) How long to wait after crown lengthening for crown fabrication? 3-4 months 7-8 months 1-2 months 5-6 months 3-4 months allows for gingival stability and tissue maturation. 40 / 90 Category: Periodontics 40) Causative bacteria in aggressive periodontitis with family history? A. actinomycetemcomitans P. gingivalis T. forsythia F. nucleatum A.a is strongly associated with familial aggressive periodontitis. 41 / 90 Category: Periodontics 41) Why does #7 show Class II furcation vs #6’s Class I? #7 has divergent roots #6 has convergent roots #7 has short roots #6 has long roots Root length directly affects furcation vulnerability. 42 / 90 Category: Periodontics 42) Gingival enlargement in renal failure patients? NSAIDs Beta blockers Calcium channel blockers Diuretics CCBs cause fibrous gingival overgrowth. 43 / 90 Category: Periodontics 43) Instrument grasp shown in image? Standard pen grasp Inverted grasp Palm-thumb grasp Modified pen grasp Modified pen grasp provides optimal control for scaling. 44 / 90 Category: Periodontics 44) Piezoscaler working motion? Vertical Back-and-forth Rotary Elliptical Piezoelectric scalers use linear back-and-forth motion. 45 / 90 Category: Periodontics 45) Which probe has 0.5mm markings at the tip? Williams probe UNC probe WHO probe Nabers probe WHO probes have 0.5mm increments at the tip. 46 / 90 Category: Periodontics 46) What is the normal probing depth of healthy gingiva? 0.5-2 mm 1-3 mm 3-5 mm 2-4 mm 1-3 mm is the physiologic sulcus depth without pathology. 47 / 90 Category: Periodontics 47) Most common periodontal disease sign? Tooth mobility Bleeding on probing Suppuration Recession BOP is the earliest detectable clinical sign. 48 / 90 Category: Periodontics 48) What does this image show? Gingival abscess Herpetic lesion Periodontal pocket Lichen planus Localized red swelling indicates gingival abscess. 49 / 90 Category: Periodontics 49) What is the main cell type in established gingivitis? Macrophage Lymphocyte Neutrophil Plasma cell Plasma cells dominate chronic inflammation in gingivitis. 50 / 90 Category: Periodontics 50) When does dental plaque begin to form? 24 hours 48 hours 6 hours 12 hours Plaque formation starts within 12 hours after cleaning. 51 / 90 Category: Periodontics 51) Gingival changes associated with aging? Decreased keratinized tissue Increased attached gingiva Thinner epithelium Reduced vascularity Attached gingiva increases due to apical migration of junctional epithelium. 52 / 90 Category: Periodontics 52) Which cells repair pulp tissue after injury? Undifferentiated mesenchymal cells Cementoblasts Fibroblasts Odontoblasts Undifferentiated mesenchymal cells differentiate to regenerate pulp. 53 / 90 Category: Periodontics 53) Treatment for Class I furcation? SRP GTR Extraction Flap surgery Scaling and root planing (SRP) is sufficient for Class I furcation. 54 / 90 Category: Periodontics 54) Plastic curettes are used for? Dentin hypersensitivity Implant surfaces Enamel Ceramic crowns Plastic instruments prevent implant surface damage. 55 / 90 Category: Periodontics 55) What is the diameter of a periodontal probe tip? 2 mm 1 mm 0.5 mm 0.3 mm Standard periodontal probes have 0.5mm tips for accurate measurements. 56 / 90 Category: Periodontics 56) Best radiograph for advanced periodontitis? Panoramic Occlusal Periapical Vertical bitewing Vertical bitewings show bone loss patterns best. 57 / 90 Category: Periodontics 57) Effect of mesially tilted lower third molar extraction? Complete bone regeneration No significant effect Mesial bone loss on #7 Distal wall defect on #7 Third molar extraction often leaves distal defects on adjacent teeth. 58 / 90 Category: Periodontics 58) Diagnosis for post-scaling abscess? Gingival abscess Periodontal abscess Pericoronitis Herpetic lesion Periodontal abscesses commonly occur after scaling. 59 / 90 Category: Periodontics 59) How is recession type II treated? Gingival graft Flap surgery Guided tissue regeneration Crown lengthening Gingival/connective tissue grafts are gold standard for type II recession. 60 / 90 Category: Periodontics 60) Post-treatment evaluation with less than 5% bleeding on probing (BOP) with good oral hygiene indicates? Need for surgery Periodontal healing Systemic involvement Treatment failure Low BOP demonstrates successful tissue inflammation control. 61 / 90 Category: Periodontics 61) What angle should a curette be inserted for subgingival scaling? 20 degrees 10 degrees 30 degrees 0 degrees 0 degrees allows smooth subgingival insertion. 62 / 90 Category: Periodontics 62) Cause of painful implant with exposed metal collar? Loss of epithelial attachment Poor oral hygiene Prosthetic misfit Occlusal overload Exposed metal indicates breakdown of soft tissue seal around implant. 63 / 90 Category: Periodontics 63) Bacteria causing horizontal bone loss in 60-year-old? Fusobacterium Streptococci Porphyromonas Actinomyces Actinomyces species are linked to chronic horizontal bone loss. 64 / 90 Category: Periodontics 64) Tooth with recent amalgam and Class 2 mobility indicates? Periodontal abscess Secondary occlusal trauma Root fracture Primary occlusal trauma Secondary trauma occurs with compromised periodontium. 65 / 90 Category: Periodontics 65) What are risk factors for periodontitis? Diabetes Smoking Genetic factors All of the above Multiple factors including smoking, diabetes, and genetics contribute. 66 / 90 Category: Periodontics 66) Advice for ulcerated gingiva from medium toothbrush? Use desensitizing paste Discontinue brushing Switch to soft brush Change technique Soft brushes prevent traumatic lesions in sensitive patients. 67 / 90 Category: Periodontics 67) Management of gingival recession with CEJ caries? Restoration first Gingival graft first Monitoring Combined procedure Gingival graft should precede restoration to ensure proper tissue coverage. 68 / 90 Category: Periodontics 68) Treatment for periodontal abscess in diabetic patient? Systemic antibiotics Local debridement Both Observation Diabetics require both local treatment and possible antibiotics. 69 / 90 Category: Periodontics 69) Disadvantage of Florida probe? High cost Limited accessibility All of above Requires calibration Combines all common limitations of electronic probes. 70 / 90 Category: Periodontics 70) Treatment for Class II furcation? Extraction GTR SRP Tunnel preparation Guided Tissue Regeneration (GTR) is indicated for Class II furcations. 71 / 90 Category: Periodontics 71) Action for calculus preventing pocket measurement? Estimate visually Scale first Use radiographic measurement Record as-is Calculus removal is prerequisite for accurate probing. 72 / 90 Category: Periodontics 72) When does CAL equal PD? With bone loss With no recession With gingival hyperplasia With pocket formation CAL = PD when no recession exists (e.g., sulcus depth = attachment level). 73 / 90 Category: Periodontics 73) What is the treatment for Stillman’s cleft? Laser therapy Gingivectomy Free gingival graft Connective tissue graft Connective tissue grafts cover recessions like Stillman’s cleft. 74 / 90 Category: Periodontics 74) Treatment for Class I and II furcation? GTR Combination therapy SRP Observation Combination therapy works best for mixed furcation classes. 75 / 90 Category: Periodontics 75) Which radiograph detects biological width violation? Vertical bitewing Occlusal Panoramic Periapical Vertical bitewings show alveolar crest and crown-root relationships clearly. 76 / 90 Category: Periodontics 76) What is the new term for “biological width”? Periodontal ligament zone Supracrustal tissue attachment Dentogingival complex Alveolar crest membrane “Supracrustal tissue attachment” is the updated terminology. 77 / 90 Category: Periodontics 77) How to detect subgingival calculus? Tactile perception Radiographs Disclosing agent Visual inspection Tactile perception with a probe is most reliable for subgingival calculus. 78 / 90 Category: Periodontics 78) Cause of painful implant (no mobility/bone loss)? Failed osseointegration Prosthetic overload Peri-implant mucositis Nerve impingement Mucositis causes pain without bone loss in early stages. 79 / 90 Category: Periodontics 79) Management of gingival abscess? Both Antibiotics Observation Incision and drainage Gingival abscesses require drainage and possible antibiotics. 80 / 90 Category: Periodontics 80) What instrument measures gingival thickness? Probe with markings Ultrasonic scaler Periodontal probe Bone caliper Probes with markings (e.g., UNC-15) are standard for thickness measurement. 81 / 90 Category: Periodontics 81) What is the color coding sequence of UNC-15 probe? Alternating colors Every 5mm (5,10,15) Every 3mm Every 1mm UNC-15 probes mark every 5mm for easy depth assessment. 82 / 90 Category: Periodontics 82) Why might periodontitis recur in a heavy smoker? All of the above Poor oral hygiene Incomplete calculus removal Smoking Smoking impairs healing and masks bleeding, complicating maintenance. 83 / 90 Category: Periodontics 83) Flap choice for 3-wall defect between #44-45? Semilunar flap Papilla preservation flap Pedicle flap Envelope flap Preserves interdental papilla for optimal healing. 84 / 90 Category: Periodontics 84) Interpretation of 40% plaque and 20% BOP scores? Attempts but ineffective Knows technique but inconsistent Excellent oral hygiene Lacks knowledge/motivation High plaque score indicates fundamental behavioral/oral hygiene deficiencies. 85 / 90 Category: Periodontics 85) Treatment for localized recession without interproximal loss? Root coverage surgery Pink porcelain crown Night guard therapy Composite restoration Surgical root coverage provides predictable results for Miller Class I recession. 86 / 90 Category: Periodontics 86) Microscopic findings in healthy gingival fluid? Many plasma cells Few lymphocytes Neutrophil predominance No inflammatory cells Healthy sites show minimal lymphocytes without active inflammation. 87 / 90 Category: Periodontics 87) Minimal distance from restoration to bone crest in furcation areas? 4-5mm 2-3mm 3-4mm 5-6mm 5-6mm prevents biological width violation in complex furcation anatomy. 88 / 90 Category: Periodontics 88) Drug causing gingival hyperplasia? Antibiotics Calcium channel blockers Anticoagulants Beta blockers Nifedipine/amlodipine frequently induce gingival overgrowth. 89 / 90 Category: Periodontics 89) Minimal bone-to-restoration margin distance? 5mm 4mm 3mm 2mm 3mm maintains biological width (1mm epithelium + 1mm CT + 1mm sulcus). 90 / 90 Category: Periodontics 90) How many days until dental calculus forms? 1-2 days 3-5 days 10-14 days 21-28 days Calculus typically mineralizes from plaque in 10-14 days. Your score is The average score is 57% Facebook Twitter 0% Restart quiz Please rate this exam and leave a comment with any notes or suggestions. Anonymous feedback Thank you for your feedback Send feedback Facebook X LinkedIn Messenger Messenger WhatsApp Telegram Print Share Facebook X LinkedIn Pinterest Reddit Messenger Messenger WhatsApp Telegram Share via Email Print
