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) How should a bevel be placed in a class I preparation without burs? Excavator Chisel Bevel hatchet Enamel hatchet A chisel is used to create a bevel in class I preparations without burs. 2 / 46 Category: Restorative 2) What is the advantage of restoring distal first premolar and mesial second premolar in one visit? Faster procedure Improved aesthetics Better contact Less cost Restoring both teeth in one visit ensures proper contact and occlusion. 3 / 46 Category: Restorative 3) Which cement requires slow mixing? Zinc phosphate Zinc polycarboxylate GIC Resin Zinc phosphate requires slow mixing to control the exothermic reaction and achieve proper consistency. 4 / 46 Category: Restorative 4) When should discolored class III restorations be replaced after whitening? No replacement needed After 2 weeks Same visit After 2 days Waiting 2 weeks allows the whitening process to stabilize before replacing restorations. 5 / 46 Category: Restorative 5) Why is acid etching done before restorative treatment? All of the above Improve adhesion Prevent thermal exchange Prevent microleakage Acid etching creates microporosities in the enamel, improving adhesion and preventing microleakage. 6 / 46 Category: Restorative 6) What does chronic gagging primarily cause? Abfraction Attrition Abrasion Erosion Chronic gagging can lead to erosion due to stomach acid exposure. 7 / 46 Category: Restorative 7) What are the features of active caries? Shiny, hard, and smooth Matte, soft, and chalky None Discolored and pitted Active caries appear matte, soft, and chalky due to enamel demineralization. 8 / 46 Category: Restorative 8) What modification is needed for an onlay when the marginal ridge is less than 1.6 mm? Convergent occlusal walls Oblique walls Parallel walls Divergent occlusal walls Divergent occlusal walls provide better retention and resistance for onlays. 9 / 46 Category: Restorative 9) Which type of pin is most retentive in amalgam restorations? Cemented Self-threaded Friction-locked None Self-threaded pins provide the highest retention in amalgam restorations. 10 / 46 Category: Restorative 10) A patient with gingivitis needs a class II composite restoration. What could affect the composite? Polymerization shrinkage Poor adhesion No direct effect All of the above Polymerization shrinkage can compromise the marginal seal of the composite restoration. 11 / 46 Category: Restorative 11) A patient with attrition has severe cervical pain. What is the likely cause? Dentin hypersensitivity Reversible pulpitis Cracked tooth Irreversible pulpitis Attrition exposes dentin, leading to hypersensitivity and pain. 12 / 46 Category: Restorative 12) What should be done if composite is unavailable for an MOD cavity? Temporary restoration Amalgam restoration No treatment GIC restoration A temporary restoration allows time to obtain the appropriate materials for a permanent restoration. 13 / 46 Category: Restorative 13) Which factor indicates a high risk of caries? Using miswak Open contact Fluorosis Good oral hygiene Open contacts trap food and bacteria, increasing the risk of caries. 14 / 46 Category: Restorative 14) A patient experiences severe pain during in-office bleaching. What is the likely cause? Tooth sensitivity High pH of bleaching agent Gingival bleaching Light intensity Incorrect placement of the rubber dam can cause gingival irritation and pain during bleaching. 15 / 46 Category: Restorative 15) What is the best restoration for a class V cavity with arrested caries? Composite RMGIC Amalgam GIC Composite is ideal for class V restorations due to its aesthetic and adhesive properties. 16 / 46 Category: Restorative 16) What is the best restoration after conservative access opening on tooth #11? No restoration Crown Composite restoration Amalgam restoration Composite is ideal for conservative restorations due to its aesthetic and adhesive properties. 17 / 46 Category: Restorative 17) What type of dentin forms when odontoblasts are disrupted by strong caries? Reparative dentin Tertiary reactionary dentin Primary dentin Secondary dentin Reparative dentin forms in response to strong caries to protect the pulp. 18 / 46 Category: Restorative 18) Why is caries risk assessment important before periodontal treatment? To check deep pockets To check root caries To evaluate gingival health To assess bone loss Root caries can complicate periodontal treatment, so assessing caries risk is crucial. 19 / 46 Category: Restorative 19) When should polysulfide impressions be poured? 1 week 1 hour Immediately 15 minutes Polysulfide impressions should be poured within 1 hour to ensure accuracy. 20 / 46 Category: Restorative 20) What causes reduced vertical dimension in a patient with short teeth? Tooth-to-tooth contact Trauma Bone loss Periodontal disease Tooth-to-tooth contact from attrition leads to reduced vertical dimension over time. 21 / 46 Category: Restorative 21) A patient has hypercementosis. What is the best management? Extraction No treatment Follow-up RCT Hypercementosis is often asymptomatic and only requires follow-up unless symptomatic. 22 / 46 Category: Restorative 22) A pediatric patient has swelling in the lower lip after extraction. What is the likely cause? Hematoma Masticatory trauma Allergic reaction Infection Masticatory trauma can cause swelling due to irritation of the extraction site. 23 / 46 Category: Restorative 23) What causes gypsum to break during flasking? Shrinkage Improper mixing Exothermic reaction Insufficient bulk Insufficient bulk of gypsum material leads to weak areas that can break during flasking. 24 / 46 Category: Restorative 24) A patient's uvula raises on one side but not the other. Which nerve is responsible? Facial nerve Hypoglossal nerve Vagus nerve Glossopharyngeal nerve The vagus nerve controls the muscles of the soft palate, including the uvula. 25 / 46 Category: Restorative 25) A patient has proximal white spots but no radiographic evidence of caries. What is the best treatment? No treatment Fluoridation Composite restoration GIC restoration Fluoridation helps remineralize enamel and prevent further decay. 26 / 46 Category: Restorative 26) What is the best treatment for craze lines? Full crown Veneer Occlusal reduction No treatment Craze lines are superficial and typically do not require treatment unless symptomatic. 27 / 46 Category: Restorative 27) Which restoration type is most prone to polymerization shrinkage? Class III Class I Class II Class IV Class I restorations are most prone to shrinkage due to their large surface area. 28 / 46 Category: Restorative 28) A class V restoration has less than 0.5 mm of remaining dentin thickness. What liner should be used? RMGIC GIC Calcium hydroxide Zinc oxide Calcium hydroxide is ideal for deep class V restorations to protect the pulp. 29 / 46 Category: Restorative 29) A 15-year-old patient has extensive proximal caries. What is the best treatment plan? Diet control Caries excavation and temporization Cast metal crowns Amalgam restorations Excavating caries and temporizing allows for further evaluation and comprehensive treatment planning. 30 / 46 Category: Restorative 30) What is the best treatment for pitted enamel? No treatment Macroabrasion Microabrasion Fluoridation Macroabrasion removes superficial enamel defects, improving aesthetics. 31 / 46 Category: Restorative 31) What makes calcium hydroxide superior as a liner material? Chemical insulation Secondary dentin formation Sedative effect Thermal insulation Calcium hydroxide promotes secondary dentin formation, protecting the pulp. 32 / 46 Category: Restorative 32) An impression left for over 15 minutes before pouring appears chalky and smooth. What is the cause? Contamination Impression expansion Dehydration shrinkage Improper mixing Dehydration causes the impression to shrink and appear chalky. 33 / 46 Category: Restorative 33) What is the most important step when replacing amalgam restorations in a patient with a deep overbite? Occlusal assessment Impression technique Material choice Marginal adaptation Occlusal assessment ensures the new restoration fits properly and avoids high points. 34 / 46 Category: Restorative 34) What is the most important consideration when replacing an amalgam restoration in a patient with a deep bite? Occlusal adjustment Pulp health Material choice Impression technique Accurate impressions ensure the final restoration fits properly and functions well. 35 / 46 Category: Restorative 35) What is the anatomical difference between central incisors before and after avulsion? Longer distal slope Distal crown rounding Mesial crown rounding Longer mesial slope Central incisors have a rounded distal crown edge, which helps differentiate them. 36 / 46 Category: Restorative 36) Why is flowable composite preferred over packable composite in preventive resin restorations? Better aesthetics Low filler content Higher strength Less microleakage Flowable composite reduces microleakage due to its ability to adapt to cavity walls. 37 / 46 Category: Restorative 37) A veneer falls off, and all cement remains on the veneer surface. What is the cause? Dentine substrate Old cement Inadequate etching Porcelain contamination If the cement remains on the veneer, the issue is likely poor adhesion to the dentine substrate. 38 / 46 Category: Restorative 38) What is the purpose of applying a separating medium? For cement To clean the canal To isolate the tooth To remove gutta-percha A separating medium prevents cement from sticking to unwanted surfaces during restoration. 39 / 46 Category: Restorative 39) Which material requires glazing to avoid dehydration? Composite Gold Glass ionomer Amalgam Glass ionomer requires glazing to prevent dehydration and maintain its properties. 40 / 46 Category: Restorative 40) Why is the axial wall finished with a high-speed bur after RCT and ZnOE obturation? Remove ZnOE residue Improve adhesion Reduce sensitivity Smooth the surface High-speed burs remove residual ZnOE, ensuring a clean surface for the final restoration. 41 / 46 Category: Restorative 41) What is the advantage of disposable flow tips for flowable composite? Minimize air trapping Improve strength Reduce cost Increase working time Disposable flow tips reduce the risk of air bubbles, ensuring a smooth restoration. 42 / 46 Category: Restorative 42) A patient has recurrent caries under an amalgam restoration. What is the best replacement? Composite GIC Gold Cast metal Cast metal provides durability and reduces the risk of recurrent caries. 43 / 46 Category: Restorative 43) What is the best dentist position for treating teeth #41 and #31? 7 o'clock 9 o'clock 12 o'clock 11 o'clock The 12 o'clock position provides optimal access to the mandibular anterior teeth. 44 / 46 Category: Restorative 44) A patient experiences severe pain after an inlay placement. What is the likely cause? All of the above High occlusion Pulpitis Periodontal involvement High occlusion causes pain due to excessive pressure on the restoration. 45 / 46 Category: Restorative 45) Why is GIC preferred over composite in some cases? Lower cost Fluoride release Better thermal expansion Higher strength GIC releases fluoride, providing anticariogenic benefits. 46 / 46 Category: Restorative 46) Which cement is most irritating to the pulp? GIC Resin Polycarboxylate Zinc phosphate Zinc phosphate is highly acidic and can irritate the pulp. Your score is The average score is 70% 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
