Periodontics R11 Periodontics SDLE MCQ Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 0% 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105 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 / 105 Category: Periodontics 1) Advice for ulcerated gingiva from medium toothbrush? Switch to soft brush Discontinue brushing Use desensitizing paste Change technique Soft brushes prevent traumatic lesions in sensitive patients. 2 / 105 Category: Periodontics 2) What makes scaling and root planing difficult? Divergent and short roots Convergent and long roots Divergent and long roots Convergent and short roots Convergent and long roots are harder to instrument effectively. 3 / 105 Category: Periodontics 3) Which scaler has a unique angulation? Sickle Gracey Universal Bone file Gracey curettes have area-specific angled blades. 4 / 105 Category: Periodontics 4) What does this image show? Horizontal bone loss 3-wall defect Fenestration Dehiscence Clearly demonstrates intact bony walls around defect. 5 / 105 Category: Periodontics 5) Gracey 11/12 curette use? Buccal of #24 Lingual of #41 Distal of #36 Mesial of #36 Designed for mesial surfaces of posterior teeth. 6 / 105 Category: Periodontics 6) What is the yellowish material on teeth that can’t be rinsed off? Stains Food debris Plaque Calculus Plaque is the initial biofilm that adheres firmly to teeth. 7 / 105 Category: Periodontics 7) Cause of painful implant with exposed metal collar? Prosthetic misfit Loss of epithelial attachment Occlusal overload Poor oral hygiene Exposed metal indicates breakdown of soft tissue seal around implant. 8 / 105 Category: Periodontics 8) Tooth with recent amalgam and Class 2 mobility indicates? Secondary occlusal trauma Root fracture Periodontal abscess Primary occlusal trauma Secondary trauma occurs with compromised periodontium. 9 / 105 Category: Periodontics 9) Effect of mesially tilted lower third molar extraction? Distal wall defect on #7 Mesial bone loss on #7 No significant effect Complete bone regeneration Third molar extraction often leaves distal defects on adjacent teeth. 10 / 105 Category: Periodontics 10) 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 Localized Stage III Grade C periodontitis Generalized Stage III Grade C periodontitis Smoking + severe attachment loss indicates Grade C. 11 / 105 Category: Periodontics 11) Bacteria associated with pregnancy gingivitis? S. mutans A. actinomycetemcomitans P. intermedia T. denticola P. intermedia thrives in elevated progesterone levels. 12 / 105 Category: Periodontics 12) Example of digital periodontal probe? All of above Pro-Depth PerioTemp Florida probe Florida probe is the most widely used digital probing system. 13 / 105 Category: Periodontics 13) Plastic curettes are used for? Ceramic crowns Enamel Implant surfaces Dentin hypersensitivity Plastic instruments prevent implant surface damage. 14 / 105 Category: Periodontics 14) Best flap for lesion distal to lower second molar? Intrasulcular Semilunar Envelope Pedicle Intrasulcular flaps provide optimal access to posterior lesions. 15 / 105 Category: Periodontics 15) Post-treatment evaluation with less than 5% bleeding on probing (BOP) with good oral hygiene indicates? Treatment failure Systemic involvement Need for surgery Periodontal healing Low BOP demonstrates successful tissue inflammation control. 16 / 105 Category: Periodontics 16) Interpretation of 40% plaque and 20% BOP scores? Attempts but ineffective Lacks knowledge/motivation Knows technique but inconsistent Excellent oral hygiene High plaque score indicates fundamental behavioral/oral hygiene deficiencies. 17 / 105 Category: Periodontics 17) Purpose of resective osteotomy after perio treatment? Pocket reduction Recontouring Regeneration Furcation plasty Recontouring modifies physiological bone architecture. 18 / 105 Category: Periodontics 18) Piezoscaler working motion? Rotary Back-and-forth Vertical Elliptical Piezoelectric scalers use linear back-and-forth motion. 19 / 105 Category: Periodontics 19) What is the treatment for Stillman’s cleft? Gingivectomy Laser therapy Connective tissue graft Free gingival graft Connective tissue grafts cover recessions like Stillman’s cleft. 20 / 105 Category: Periodontics 20) Diagnosis for pain after eating popcorn? Periodontal abscess Gingival abscess Food impaction ANUG Popcorn husks commonly cause traumatic gingival abscesses. 21 / 105 Category: Periodontics 21) What is the main cell type in established gingivitis? Lymphocyte Macrophage Neutrophil Plasma cell Plasma cells dominate chronic inflammation in gingivitis. 22 / 105 Category: Periodontics 22) Cause of swelling after scaling in diabetic patient? Unremoved calculus Trauma Allergic reaction Infection Residual subgingival calculus can cause delayed healing in diabetics. 23 / 105 Category: Periodontics 23) Gingival enlargement covering 3/4 crown is class? Class 1 Class 4 Class 3 Class 2 Class 3 covers >1/2 but not entire crown (Seymour classification). 24 / 105 Category: Periodontics 24) When to perform surgery after nonsurgical therapy? Immediately 4-6 weeks 12 weeks 8-10 weeks 4-6 weeks allows evaluation of initial therapy results. 25 / 105 Category: Periodontics 25) Which tooth is most challenging for periodontal treatment? Lower central incisor Upper first premolar Lower second molar Upper canine Upper first premolar’s mesial root concavity complicates treatment. 26 / 105 Category: Periodontics 26) What angle should a curette be inserted for subgingival scaling? 0 degrees 10 degrees 20 degrees 30 degrees 0 degrees allows smooth subgingival insertion. 27 / 105 Category: Periodontics 27) What is the ideal angle for scaling? 20-30 degrees 45-90 degrees 10-15 degrees 0 degrees 45-90 degrees optimizes cutting efficiency. 28 / 105 Category: Periodontics 28) Diagnosis for post-scaling abscess? Periodontal abscess Pericoronitis Herpetic lesion Gingival abscess Periodontal abscesses commonly occur after scaling. 29 / 105 Category: Periodontics 29) Minimal distance from restoration to bone crest in furcation areas? 2-3mm 5-6mm 4-5mm 3-4mm 5-6mm prevents biological width violation in complex furcation anatomy. 30 / 105 Category: Periodontics 30) Attached gingiva boundaries? CEJ to free margin Sulcus base to bone crest Interdental col to frenum Free groove to mucogingival line Defined coronally by free groove and apically by mucogingival junction. 31 / 105 Category: Periodontics 31) Why might periodontitis recur in a heavy smoker? Incomplete calculus removal All of the above Poor oral hygiene Smoking Smoking impairs healing and masks bleeding, complicating maintenance. 32 / 105 Category: Periodontics 32) What is an indication for resective osseous surgery? One-wall defect Three-wall defect Gingival recession Furcation involvement Three-wall defects respond well to resective osseous surgery. 33 / 105 Category: Periodontics 33) Crown lengthening for tooth with 2mm KT and 3mm bone? Orthodontic extrusion Gingivectomy alone No treatment needed Apical flap + bone removal Requires osseous reduction to achieve biological width. 34 / 105 Category: Periodontics 34) Bone regeneration technique shown in CBCT? Block graft GBR Ridge preservation Socket grafting Block grafts are used for significant vertical/horizontal defects. 35 / 105 Category: Periodontics 35) Treatment for Class I and II furcation? Combination therapy GTR SRP Observation Combination therapy works best for mixed furcation classes. 36 / 105 Category: Periodontics 36) What does this image show? Periodontal pocket Herpetic lesion Lichen planus Gingival abscess Localized red swelling indicates gingival abscess. 37 / 105 Category: Periodontics 37) Complication of impacted canine exposure? Ankylosis Recession Root resorption Pulp necrosis Surgical trauma often causes labial gingival recession. 38 / 105 Category: Periodontics 38) Instrument modification for deep posterior pockets? Longer terminal shank Thicker blade Smaller handle Curved tip Extended shank improves access to posterior areas. 39 / 105 Category: Periodontics 39) What is a disadvantage of LASER use on soft tissues? Delayed healing Excessive bleeding All of the above Uncontrolled depth Lasers can cause delayed healing, bleeding, and unpredictable tissue effects. 40 / 105 Category: Periodontics 40) Best instrument for subgingival calculus? Gracey curette Sickle scaler Piezoscaler Ultrasonic scaler Gracey curettes access subgingival areas effectively. 41 / 105 Category: Periodontics 41) Why do dentists advise patients to brush dentures daily? To prevent cross infections To avoid bad smell To avoid inflammation To remove plaque Daily brushing prevents bacterial buildup causing bad odor. 42 / 105 Category: Periodontics 42) Movement pattern of magnetic scaler tip? Zigzag Round Elliptical Linear Elliptical motion provides optimal calculus removal. 43 / 105 Category: Periodontics 43) Treatment for diabetic patient with swelling and pus at #46? Extraction SRP Antibiotics Incision and drainage Scaling and root planing is first-line treatment for periodontal abscesses. 44 / 105 Category: Periodontics 44) What are risk factors for periodontitis? Smoking All of the above Genetic factors Diabetes Multiple factors including smoking, diabetes, and genetics contribute. 45 / 105 Category: Periodontics 45) Gingival enlargement in renal failure patients? Diuretics Calcium channel blockers NSAIDs Beta blockers CCBs cause fibrous gingival overgrowth. 46 / 105 Category: Periodontics 46) What is the universal curette’s working angle? 90 degrees 45 degrees 120 degrees 60 degrees 90 degrees is the standard working angle for universal curettes. 47 / 105 Category: Periodontics 47) When does dental plaque begin to form? 48 hours 24 hours 12 hours 6 hours Plaque formation starts within 12 hours after cleaning. 48 / 105 Category: Periodontics 48) Treatment for localized recession without interproximal loss? Root coverage surgery Night guard therapy Pink porcelain crown Composite restoration Surgical root coverage provides predictable results for Miller Class I recession. 49 / 105 Category: Periodontics 49) Cause of bleeding post-laser gingivectomy? Allergic reaction Spontaneous bleeding Plaque accumulation Laser side effect Plaque-induced inflammation overrides laser benefits. 50 / 105 Category: Periodontics 50) Main concern with excessive alcohol mouthwash use? Enamel demineralization Oral mucosal dryness Altered taste perception Tooth staining Alcohol causes xerostomia and disrupts oral microbiome balance. 51 / 105 Category: Periodontics 51) When does CAL equal PD? With gingival hyperplasia With pocket formation With bone loss With no recession CAL = PD when no recession exists (e.g., sulcus depth = attachment level). 52 / 105 Category: Periodontics 52) Bone defect type shown in CBCT (distal root of #37)? 2-wall defect 1-wall defect 3-wall defect Crateriform Three walls (mesial, buccal, lingual) indicate 3-wall defect. 53 / 105 Category: Periodontics 53) Boundary between attached/unattached gingiva? Interdental papilla Free gingival groove Mucogingival junction Alveolar mucosa Free gingival groove marks the apical border of unattached gingiva. 54 / 105 Category: Periodontics 54) What is the diameter of a periodontal probe tip? 0.5 mm 0.3 mm 2 mm 1 mm Standard periodontal probes have 0.5mm tips for accurate measurements. 55 / 105 Category: Periodontics 55) Treatment for Class I furcation? Flap surgery Extraction SRP GTR Scaling and root planing (SRP) is sufficient for Class I furcation. 56 / 105 Category: Periodontics 56) What treatment is needed after orthodontic removal? SRP RCT Restoration Crown Scaling and root planing (SRP) is essential after orthodontic treatment. 57 / 105 Category: Periodontics 57) Causative bacteria in aggressive periodontitis with family history? F. nucleatum P. gingivalis A. actinomycetemcomitans T. forsythia A.a is strongly associated with familial aggressive periodontitis. 58 / 105 Category: Periodontics 58) Management of gingival recession with CEJ caries? Monitoring Gingival graft first Restoration first Combined procedure Gingival graft should precede restoration to ensure proper tissue coverage. 59 / 105 Category: Periodontics 59) Microscopic findings in healthy gingival fluid? Few lymphocytes Many plasma cells No inflammatory cells Neutrophil predominance Healthy sites show minimal lymphocytes without active inflammation. 60 / 105 Category: Periodontics 60) Key diagnostic difference between periapical/periodontal abscess? Pain characteristics Radiographic appearance Tooth vitality Swelling location Vitality testing is primary determinant (vital=periodontal, non-vital=periapical). 61 / 105 Category: Periodontics 61) How is recession type II treated? Gingival graft Crown lengthening Flap surgery Guided tissue regeneration Gingival/connective tissue grafts are gold standard for type II recession. 62 / 105 Category: Periodontics 62) Which tooth is most difficult to scale? Lower molar Distobuccal root of upper 7 Upper canine Upper 4 Upper 4’s root anatomy makes scaling challenging. 63 / 105 Category: Periodontics 63) How many days until dental calculus forms? 21-28 days 1-2 days 10-14 days 3-5 days Calculus typically mineralizes from plaque in 10-14 days. 64 / 105 Category: Periodontics 64) Disadvantage of Florida probe? All of above Requires calibration Limited accessibility High cost Combines all common limitations of electronic probes. 65 / 105 Category: Periodontics 65) What is the probe angulation during measurement? 45 degrees 20 degrees 30 degrees 10 degrees 10 degrees ensures accurate pocket depth reading. 66 / 105 Category: Periodontics 66) What procedure is shown in the edentulous area post-surgery? Flap surgery GBR Bone grafting GTR Guided Bone Regeneration (GBR) is used for ridge augmentation. 67 / 105 Category: Periodontics 67) Which radiograph detects biological width violation? Vertical bitewing Occlusal Periapical Panoramic Vertical bitewings show alveolar crest and crown-root relationships clearly. 68 / 105 Category: Periodontics 68) When does initial gingivitis begin? 1-2 days 4-7 days 14-21 days 2-4 days Initial gingivitis signs appear within 2-4 days of plaque accumulation. 69 / 105 Category: Periodontics 69) Instrument grasp shown in image? Palm-thumb grasp Modified pen grasp Standard pen grasp Inverted grasp Modified pen grasp provides optimal control for scaling. 70 / 105 Category: Periodontics 70) Bone architecture with papilla loss exceeding other areas? Flat architecture Inverted architecture Normal architecture Reversed architecture Reversed architecture shows greater interdental than radicular bone loss. 71 / 105 Category: Periodontics 71) What is the normal probing depth of healthy gingiva? 3-5 mm 1-3 mm 0.5-2 mm 2-4 mm 1-3 mm is the physiologic sulcus depth without pathology. 72 / 105 Category: Periodontics 72) Cause of gingival enlargement after eating fish? Gingival abscess Food impaction Periodontal abscess Allergic reaction Fish bones may cause traumatic gingival abscesses. 73 / 105 Category: Periodontics 73) Cause of painful implant (no mobility/bone loss)? Prosthetic overload Nerve impingement Failed osseointegration Peri-implant mucositis Mucositis causes pain without bone loss in early stages. 74 / 105 Category: Periodontics 74) Which probe has 0.5mm markings at the tip? UNC probe Nabers probe Williams probe WHO probe WHO probes have 0.5mm increments at the tip. 75 / 105 Category: Periodontics 75) Treatment for periodontal abscess in diabetic patient? Observation Systemic antibiotics Both Local debridement Diabetics require both local treatment and possible antibiotics. 76 / 105 Category: Periodontics 76) Bacteria causing horizontal bone loss in 60-year-old? Fusobacterium Streptococci Porphyromonas Actinomyces Actinomyces species are linked to chronic horizontal bone loss. 77 / 105 Category: Periodontics 77) Action for calculus preventing pocket measurement? Record as-is Scale first Estimate visually Use radiographic measurement Calculus removal is prerequisite for accurate probing. 78 / 105 Category: Periodontics 78) Which probe has 3 sections? WHO probe Williams probe Marquis probe UNC probe Marquis probe features 3 sections (3-6-9mm markings). 79 / 105 Category: Periodontics 79) Difference between dehiscence and fenestration? Fenestration: isolated bone loss Dehiscence: bone loss to apex No difference Both involve gingival recession Fenestration is isolated bone loss without apical involvement. 80 / 105 Category: Periodontics 80) Management of persistent isolated pocket? Observation Surgical resection Local antibiotic delivery Systemic antibiotics Local antibiotics target refractory sites effectively. 81 / 105 Category: Periodontics 81) Smoking’s effect on bone? Accelerates resorption Increases density Causes osteosclerosis No significant effect Smoking impairs osteoblast function and angiogenesis. 82 / 105 Category: Periodontics 82) Management of gingival abscess? Both Antibiotics Incision and drainage Observation Gingival abscesses require drainage and possible antibiotics. 83 / 105 Category: Periodontics 83) Treatment for excessive gingival display with short clinical crowns? Porcelain veneers Orthodontic extrusion Gingivectomy Crown lengthening Gingivectomy corrects excessive gingival display when no bone reduction needed. 84 / 105 Category: Periodontics 84) Minimal bone-to-restoration margin distance? 4mm 3mm 2mm 5mm 3mm maintains biological width (1mm epithelium + 1mm CT + 1mm sulcus). 85 / 105 Category: Periodontics 85) How to detect subgingival calculus? Radiographs Tactile perception Visual inspection Disclosing agent Tactile perception with a probe is most reliable for subgingival calculus. 86 / 105 Category: Periodontics 86) Risk for thin scalloped gingival phenotype? Pocket formation Recession Hyperplasia No significant risk Thin tissues are prone to recession from mechanical trauma. 87 / 105 Category: Periodontics 87) Interpretation of furcation differences between #16 and #17? #17 has longer roots #16 has fused roots #16 has divergent roots #17 has shorter root trunk Shorter root trunks lead to more advanced furcation involvement. 88 / 105 Category: Periodontics 88) If gingival margin is 2mm from CEJ and PD is 6mm, what is CAL? 8mm 6mm 4mm 2mm CAL = (Gingival margin to CEJ) + PD = 2 + 6 = 8mm. 89 / 105 Category: Periodontics 89) What is the color coding sequence of UNC-15 probe? Every 3mm Every 1mm Alternating colors Every 5mm (5,10,15) UNC-15 probes mark every 5mm for easy depth assessment. 90 / 105 Category: Periodontics 90) Drug causing gingival hyperplasia? Antibiotics Calcium channel blockers Anticoagulants Beta blockers Nifedipine/amlodipine frequently induce gingival overgrowth. 91 / 105 Category: Periodontics 91) Which image shows a double papilla flap? Image C Image A Image D Image B Double papilla flaps involve two papillae for wound closure. 92 / 105 Category: Periodontics 92) What is the new term for “biological width”? Alveolar crest membrane Periodontal ligament zone Supracrustal tissue attachment Dentogingival complex “Supracrustal tissue attachment” is the updated terminology. 93 / 105 Category: Periodontics 93) What instrument measures gingival thickness? Probe with markings Bone caliper Ultrasonic scaler Periodontal probe Probes with markings (e.g., UNC-15) are standard for thickness measurement. 94 / 105 Category: Periodontics 94) Which cells repair pulp tissue after injury? Odontoblasts Fibroblasts Undifferentiated mesenchymal cells Cementoblasts Undifferentiated mesenchymal cells differentiate to regenerate pulp. 95 / 105 Category: Periodontics 95) Best radiograph for advanced periodontitis? Vertical bitewing Panoramic Periapical Occlusal Vertical bitewings show bone loss patterns best. 96 / 105 Category: Periodontics 96) Treatment for short anterior teeth with normal periodontium? Composite bonding Gingival grafts No treatment needed Esthetic crown lengthening Crown lengthening improves crown-to-root ratio for esthetics. 97 / 105 Category: Periodontics 97) Why does #7 show Class II furcation vs #6’s Class I? #6 has long roots #6 has convergent roots #7 has divergent roots #7 has short roots Root length directly affects furcation vulnerability. 98 / 105 Category: Periodontics 98) Gingival changes associated with aging? Decreased keratinized tissue Reduced vascularity Increased attached gingiva Thinner epithelium Attached gingiva increases due to apical migration of junctional epithelium. 99 / 105 Category: Periodontics 99) What are the components of biological width? 2mm epithelium 1.5mm epithelium + 0.5mm CT 0.5mm epithelium + 1.5mm CT 1mm epithelium + 1mm CT Biological width consists of 1mm epithelium and 1mm connective tissue. 100 / 105 Category: Periodontics 100) How long to wait after crown lengthening for crown fabrication? 5-6 months 3-4 months 1-2 months 7-8 months 3-4 months allows for gingival stability and tissue maturation. 101 / 105 Category: Periodontics 101) Flap choice for 3-wall defect between #44-45? Papilla preservation flap Semilunar flap Pedicle flap Envelope flap Preserves interdental papilla for optimal healing. 102 / 105 Category: Periodontics 102) Treatment for Class II furcation? GTR Extraction Tunnel preparation SRP Guided Tissue Regeneration (GTR) is indicated for Class II furcations. 103 / 105 Category: Periodontics 103) Diagnosis for swelling after scaling in diabetic patient? Gingivitis Periodontal abscess Cellulitis Periapical abscess Localized swelling post-scaling suggests periodontal abscess. 104 / 105 Category: Periodontics 104) Best treatment for multiple 1-2mm recessions with sensitivity? Apically positioned flap Connective tissue graft Free gingival graft Coronally advanced flap CT grafts offer superior esthetics for anterior teeth with minimal recession. 105 / 105 Category: Periodontics 105) Most common periodontal disease sign? Suppuration Bleeding on probing Recession Tooth mobility BOP is the earliest detectable clinical sign. Your score is The average score is 41% 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
