Restorative Restorative SDLE MCQ | Part 3 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% 12345678910111213141516171819202122232425262728293031323334353637383940414243444546 Restorative Restorative SDLE MCQ | Part 3 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 / 46 Category: Restorative 1) What is the most important step when replacing amalgam restorations in a patient with a deep overbite? Occlusal assessment Material choice Marginal adaptation Impression technique Occlusal assessment ensures the new restoration fits properly and avoids high points. 2 / 46 Category: Restorative 2) How should a bevel be placed in a class I preparation without burs? Chisel Excavator Bevel hatchet Enamel hatchet A chisel is used to create a bevel in class I preparations without burs. 3 / 46 Category: Restorative 3) A patient experiences severe pain after an inlay placement. What is the likely cause? Periodontal involvement Pulpitis All of the above High occlusion High occlusion causes pain due to excessive pressure on the restoration. 4 / 46 Category: Restorative 4) A patient has hypercementosis. What is the best management? Follow-up Extraction No treatment RCT Hypercementosis is often asymptomatic and only requires follow-up unless symptomatic. 5 / 46 Category: Restorative 5) Which factor indicates a high risk of caries? Fluorosis Good oral hygiene Using miswak Open contact Open contacts trap food and bacteria, increasing the risk of caries. 6 / 46 Category: Restorative 6) When should discolored class III restorations be replaced after whitening? Same visit After 2 days After 2 weeks No replacement needed Waiting 2 weeks allows the whitening process to stabilize before replacing restorations. 7 / 46 Category: Restorative 7) What is the most important consideration when replacing an amalgam restoration in a patient with a deep bite? Pulp health Impression technique Occlusal adjustment Material choice Accurate impressions ensure the final restoration fits properly and functions well. 8 / 46 Category: Restorative 8) What is the purpose of applying a separating medium? To clean the canal To isolate the tooth For cement To remove gutta-percha A separating medium prevents cement from sticking to unwanted surfaces during restoration. 9 / 46 Category: Restorative 9) What causes reduced vertical dimension in a patient with short teeth? Trauma Bone loss Tooth-to-tooth contact Periodontal disease Tooth-to-tooth contact from attrition leads to reduced vertical dimension over time. 10 / 46 Category: Restorative 10) An impression left for over 15 minutes before pouring appears chalky and smooth. What is the cause? Contamination Dehydration shrinkage Improper mixing Impression expansion Dehydration causes the impression to shrink and appear chalky. 11 / 46 Category: Restorative 11) A 15-year-old patient has extensive proximal caries. What is the best treatment plan? Diet control Amalgam restorations Caries excavation and temporization Cast metal crowns Excavating caries and temporizing allows for further evaluation and comprehensive treatment planning. 12 / 46 Category: Restorative 12) What is the best treatment for pitted enamel? Macroabrasion Fluoridation Microabrasion No treatment Macroabrasion removes superficial enamel defects, improving aesthetics. 13 / 46 Category: Restorative 13) A class V restoration has less than 0.5 mm of remaining dentin thickness. What liner should be used? RMGIC Zinc oxide Calcium hydroxide GIC Calcium hydroxide is ideal for deep class V restorations to protect the pulp. 14 / 46 Category: Restorative 14) What is the best treatment for craze lines? No treatment Occlusal reduction Veneer Full crown Craze lines are superficial and typically do not require treatment unless symptomatic. 15 / 46 Category: Restorative 15) What is the anatomical difference between central incisors before and after avulsion? Longer distal slope Mesial crown rounding Longer mesial slope Distal crown rounding Central incisors have a rounded distal crown edge, which helps differentiate them. 16 / 46 Category: Restorative 16) Why is the axial wall finished with a high-speed bur after RCT and ZnOE obturation? Remove ZnOE residue Reduce sensitivity Improve adhesion Smooth the surface High-speed burs remove residual ZnOE, ensuring a clean surface for the final restoration. 17 / 46 Category: Restorative 17) A patient with gingivitis needs a class II composite restoration. What could affect the composite? Polymerization shrinkage No direct effect Poor adhesion All of the above Polymerization shrinkage can compromise the marginal seal of the composite restoration. 18 / 46 Category: Restorative 18) What is the best restoration for a class V cavity with arrested caries? Amalgam GIC RMGIC Composite Composite is ideal for class V restorations due to its aesthetic and adhesive properties. 19 / 46 Category: Restorative 19) A pediatric patient has swelling in the lower lip after extraction. What is the likely cause? Hematoma Allergic reaction Masticatory trauma Infection Masticatory trauma can cause swelling due to irritation of the extraction site. 20 / 46 Category: Restorative 20) What does chronic gagging primarily cause? Abrasion Abfraction Attrition Erosion Chronic gagging can lead to erosion due to stomach acid exposure. 21 / 46 Category: Restorative 21) A veneer falls off, and all cement remains on the veneer surface. What is the cause? Old cement Inadequate etching Porcelain contamination Dentine substrate If the cement remains on the veneer, the issue is likely poor adhesion to the dentine substrate. 22 / 46 Category: Restorative 22) A patient's uvula raises on one side but not the other. Which nerve is responsible? Facial nerve Vagus nerve Hypoglossal nerve Glossopharyngeal nerve The vagus nerve controls the muscles of the soft palate, including the uvula. 23 / 46 Category: Restorative 23) Which type of pin is most retentive in amalgam restorations? Friction-locked None Self-threaded Cemented Self-threaded pins provide the highest retention in amalgam restorations. 24 / 46 Category: Restorative 24) A patient with attrition has severe cervical pain. What is the likely cause? Irreversible pulpitis Dentin hypersensitivity Cracked tooth Reversible pulpitis Attrition exposes dentin, leading to hypersensitivity and pain. 25 / 46 Category: Restorative 25) A patient has recurrent caries under an amalgam restoration. What is the best replacement? Cast metal Gold Composite GIC Cast metal provides durability and reduces the risk of recurrent caries. 26 / 46 Category: Restorative 26) What causes gypsum to break during flasking? Shrinkage Improper mixing Insufficient bulk Exothermic reaction Insufficient bulk of gypsum material leads to weak areas that can break during flasking. 27 / 46 Category: Restorative 27) What is the best dentist position for treating teeth #41 and #31? 9 o'clock 7 o'clock 12 o'clock 11 o'clock The 12 o'clock position provides optimal access to the mandibular anterior teeth. 28 / 46 Category: Restorative 28) Why is GIC preferred over composite in some cases? Better thermal expansion Lower cost Fluoride release Higher strength GIC releases fluoride, providing anticariogenic benefits. 29 / 46 Category: Restorative 29) Why is acid etching done before restorative treatment? All of the above Prevent microleakage Prevent thermal exchange Improve adhesion Acid etching creates microporosities in the enamel, improving adhesion and preventing microleakage. 30 / 46 Category: Restorative 30) What are the features of active caries? Discolored and pitted Shiny, hard, and smooth None Matte, soft, and chalky Active caries appear matte, soft, and chalky due to enamel demineralization. 31 / 46 Category: Restorative 31) Which cement requires slow mixing? Zinc polycarboxylate Resin Zinc phosphate GIC Zinc phosphate requires slow mixing to control the exothermic reaction and achieve proper consistency. 32 / 46 Category: Restorative 32) What modification is needed for an onlay when the marginal ridge is less than 1.6 mm? Divergent occlusal walls Convergent occlusal walls Oblique walls Parallel walls Divergent occlusal walls provide better retention and resistance for onlays. 33 / 46 Category: Restorative 33) What should be done if composite is unavailable for an MOD cavity? Temporary restoration GIC restoration No treatment Amalgam restoration A temporary restoration allows time to obtain the appropriate materials for a permanent restoration. 34 / 46 Category: Restorative 34) What is the advantage of disposable flow tips for flowable composite? Improve strength Increase working time Reduce cost Minimize air trapping Disposable flow tips reduce the risk of air bubbles, ensuring a smooth restoration. 35 / 46 Category: Restorative 35) What is the advantage of restoring distal first premolar and mesial second premolar in one visit? Improved aesthetics Faster procedure Less cost Better contact Restoring both teeth in one visit ensures proper contact and occlusion. 36 / 46 Category: Restorative 36) Which material requires glazing to avoid dehydration? Glass ionomer Composite Gold Amalgam Glass ionomer requires glazing to prevent dehydration and maintain its properties. 37 / 46 Category: Restorative 37) What is the best restoration after conservative access opening on tooth #11? Crown Composite restoration Amalgam restoration No restoration Composite is ideal for conservative restorations due to its aesthetic and adhesive properties. 38 / 46 Category: Restorative 38) A patient experiences severe pain during in-office bleaching. What is the likely cause? Tooth sensitivity Light intensity Gingival bleaching High pH of bleaching agent Incorrect placement of the rubber dam can cause gingival irritation and pain during bleaching. 39 / 46 Category: Restorative 39) When should polysulfide impressions be poured? Immediately 1 hour 15 minutes 1 week Polysulfide impressions should be poured within 1 hour to ensure accuracy. 40 / 46 Category: Restorative 40) Which cement is most irritating to the pulp? Polycarboxylate Resin GIC Zinc phosphate Zinc phosphate is highly acidic and can irritate the pulp. 41 / 46 Category: Restorative 41) Why is caries risk assessment important before periodontal treatment? To evaluate gingival health To assess bone loss To check root caries To check deep pockets Root caries can complicate periodontal treatment, so assessing caries risk is crucial. 42 / 46 Category: Restorative 42) What type of dentin forms when odontoblasts are disrupted by strong caries? Secondary dentin Reparative dentin Primary dentin Tertiary reactionary dentin Reparative dentin forms in response to strong caries to protect the pulp. 43 / 46 Category: Restorative 43) Why is flowable composite preferred over packable composite in preventive resin restorations? Low filler content Better aesthetics Less microleakage Higher strength Flowable composite reduces microleakage due to its ability to adapt to cavity walls. 44 / 46 Category: Restorative 44) Which restoration type is most prone to polymerization shrinkage? Class I Class IV Class III Class II Class I restorations are most prone to shrinkage due to their large surface area. 45 / 46 Category: Restorative 45) What makes calcium hydroxide superior as a liner material? Secondary dentin formation Sedative effect Thermal insulation Chemical insulation Calcium hydroxide promotes secondary dentin formation, protecting the pulp. 46 / 46 Category: Restorative 46) A patient has proximal white spots but no radiographic evidence of caries. What is the best treatment? Composite restoration GIC restoration Fluoridation No treatment Fluoridation helps remineralize enamel and prevent further decay. 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