Restorative Restorative SDLE MCQ | Part 2 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% 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 Restorative Restorative SDLE MCQ | Part 2 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: Restorative 1) What is the best restoration for a class V cavity in a patient with Sjogren's syndrome? RMGIC Composite GIC Amalgam GIC is ideal for patients with Sjogren's syndrome due to its moisture tolerance and fluoride release. 2 / 50 Category: Restorative 2) A resin composite restoration has 1 mm of remaining dentin thickness. What liner should be used? No liner RMGIC base Both Calcium hydroxide liner Using both calcium hydroxide and RMGIC provides pulp protection and a stable base. 3 / 50 Category: Restorative 3) Which tooth is most prone to caries? Maxillary first molar Mandibular first molar Maxillary second molar Mandibular second molar The mandibular first molar is the most prone to caries due to its deep pits and fissures. 4 / 50 Category: Restorative 4) What is the definition of resilience? Resistance to fracture Hardness Ability to absorb energy Brittleness Resilience refers to a material's ability to absorb energy without permanent deformation. 5 / 50 Category: Restorative 5) Which clamp is used for a class V restoration? W8 A12 A13 212 The 212 clamp is designed for class V restorations, providing optimal retention and stability. 6 / 50 Category: Restorative 6) A class I restoration with deep caries has 0.5 mm of remaining dentin thickness. What base should be used? Zinc oxide GIC amalgam RMGIC RMGIC is ideal for deep caries with minimal dentin thickness due to its strength and fluoride release. 7 / 50 Category: Restorative 7) Why is a cool glass slab recommended for mixing zinc oxide? Increase solubility Reduce exothermic reaction Shorten setting time Improve consistency A cool glass slab slows the setting reaction, allowing more working time. 8 / 50 Category: Restorative 8) What happens if alginate is left under a wet towel for an hour before pouring? Syneresis Expansion Imbibition Shrinkage Imbibition causes the alginate to absorb water, leading to dimensional changes. 9 / 50 Category: Restorative 9) What is the fourth dental material category besides polymers, metals, and porcelain? Composite Cement Alginate Stone Composite is a distinct category of dental materials, combining resin and filler particles. 10 / 50 Category: Restorative 10) Which clamp is used for an upper molar? W2 W8 W7 W4 The W8 clamp is specifically designed for upper molars, providing secure retention. 11 / 50 Category: Restorative 11) A mild class I amalgam on a premolar needs replacement. What is the best option? Crown Composite Amalgam No treatment Amalgam is still a viable option for mild restorations due to its durability and cost-effectiveness. 12 / 50 Category: Restorative 12) What happens when filler content in a restoration is increased? Increased wear resistance Decreased strength Increased shrinkage Increased hydrophilicity Higher filler content improves wear resistance and durability of the restoration. 13 / 50 Category: Restorative 13) What is the dentist's position when working on teeth #41 and #31? 12 o'clock 9 o'clock 7 o'clock 11 o'clock The 12 o'clock position provides optimal access to the mandibular anterior teeth. 14 / 50 Category: Restorative 14) How can alginate impression setting be accelerated for a gagging patient? Increase mixing time Reduce powder/liquid ratio Hot water Cold water Hot water accelerates the setting of alginate, reducing the time the impression material is in the mouth. 15 / 50 Category: Restorative 15) What is the best method to diagnose interproximal caries? Bitewing Periapical radiograph Transillumination Clinical examination Bitewing radiographs provide clear visualization of interproximal caries. 16 / 50 Category: Restorative 16) What type of collagen is present in the pulp during development? Type 3 Type 2 Type 1 Type 4 Type 3 collagen is the primary collagen type in the pulp during development. 17 / 50 Category: Restorative 17) How can stone setting be accelerated without compromising quality? Slurry water Increase powder/liquid ratio Reduce mixing time Hot tap water Hot tap water accelerates the setting reaction of stone without affecting its properties. 18 / 50 Category: Restorative 18) What are the components of preventive resin restorations? RMGI Glass ionomer Composite Componer Preventive resin restorations primarily use composite due to its aesthetic and adhesive properties. 19 / 50 Category: Restorative 19) How should carbide burs be evaluated for survival and effectiveness? High speed out of oral cavity Low speed before tooth contact Low speed out of oral cavity High speed before tooth contact Testing burs at high speed before tooth contact ensures their effectiveness and longevity. 20 / 50 Category: Restorative 20) A 15-year-old patient with pain and radiolucency under #46 wants extraction, but the mother is unsure. What is the best action? No treatment Ask for parental consent Do the patient's desire Refuse extraction Parental consent is required for minors, and the dentist should discuss options with both parties. 21 / 50 Category: Restorative 21) Which type of GIC is used as a luting agent? Type 3 Type 1 Type 4 Type 2 Type 1 GIC is specifically designed for cementation and luting purposes. 22 / 50 Category: Restorative 22) In a deep cavity, where should decay removal begin to preserve pulp health? Dentin first Axial wall first Enamel first Floor first Starting with the axial wall reduces the risk of pulp exposure and preserves pulp health. 23 / 50 Category: Restorative 23) A patient wants to replace an amalgam restoration with 2 mm of remaining dentin. What liner should be used? GIC No liner RMGIC Calcium hydroxide With 2 mm of remaining dentin, no liner is necessary as the dentin provides sufficient protection. 24 / 50 Category: Restorative 24) What is the purpose of a liner in a casting ring? Increase strength Allow uniform expansion Prevent shrinkage Reduce porosity A liner allows uniform expansion of the investment material during casting. 25 / 50 Category: Restorative 25) A class V restoration has less than 0.5 mm of remaining dentin thickness. What liner should be used? GIC Zinc oxide Calcium hydroxide RMGIC GIC provides a protective barrier and adhesion for deep class V restorations. 26 / 50 Category: Restorative 26) What does chronic fluoride exposure primarily affect? None Skeletal structures Both Dental structures Chronic fluoride exposure primarily affects dental structures, causing fluorosis. 27 / 50 Category: Restorative 27) What is the cervico-occlusal length of a molar? 7.5 mm 9.5 mm 8.5 mm 10.5 mm The cervico-occlusal length of a molar is typically around 7.5 mm. 28 / 50 Category: Restorative 28) What is the strongest phase in amalgam? Gamma Gamma 1 Gamma 2 Beta The gamma phase is the strongest and most stable phase in amalgam. 29 / 50 Category: Restorative 29) A patient has a small amalgam restoration in #16 that needs replacement. What is the best option? Cast ceramic Glass ionomer Composite Gold Composite is the most aesthetic and functional option for replacing small amalgam restorations. 30 / 50 Category: Restorative 30) What material is used for flasking casts? Die stone Plaster Refractory material Wax Die stone is commonly used for flasking due to its strength and accuracy. 31 / 50 Category: Restorative 31) How can the working time of zinc oxide be increased? Reduce mixing time Use a faster-setting cement Increase powder/liquid ratio Mix on a cool glass slab Mixing on a cool glass slab slows the setting reaction, extending the working time. 32 / 50 Category: Restorative 32) A patient experiences pain when clenching after a class I amalgam restoration. What is the likely cause? Galvanic reaction Under-contoured restoration Over-contoured restoration High point contact High point contact causes pain during clenching due to excessive occlusal pressure. 33 / 50 Category: Restorative 33) A broken tooth cannot accommodate a rubber dam. What is the best alternative? Cotton roll isolation No isolation Use a clamp Place on adjacent teeth Placing the rubber dam on adjacent teeth ensures proper isolation for the broken tooth. 34 / 50 Category: Restorative 34) What is the advantage of using spherical particles in dental amalgam? Less residual mercury All of the above Easier to condense Higher strength Spherical particles in amalgam improve condensation, strength, and reduce residual mercury, making them superior 35 / 50 Category: Restorative 35) What causes a grainy impression when moisture contaminates the powder? Chalky cast Grainy impression Distorted impression Tear in impression Moisture contamination leads to a grainy texture in the impression material. 36 / 50 Category: Restorative 36) What is the characteristic setting reaction of PVS? Addition Polymerization Cross-linking Condensation PVS sets through an addition reaction, which is more stable and predictable. 37 / 50 Category: Restorative 37) A 62-year-old patient has posterior recession and arrested root caries. What is the best treatment? Topical fluoride Systemic fluoride Composite restoration GIC restoration GIC restoration is ideal for arrested root caries due to its adhesion and fluoride release. 38 / 50 Category: Restorative 38) Why does a pin in an amalgam restoration fracture? Incorrect pin placement Excessive force All of the above Poor material quality Pin fracture can result from multiple factors, including placement, force, and material quality. 39 / 50 Category: Restorative 39) What is atraumatic restorative treatment (ART)? Conservative treatment No treatment Surgical intervention Microabrasion ART focuses on minimally invasive techniques to remove caries and restore teeth. 40 / 50 Category: Restorative 40) A patient has an overhanging amalgam restoration with no symptoms. What is the best action? No treatment Monitor Restoration Remove overhang Removing the overhang prevents periodontal issues and improves oral health. 41 / 50 Category: Restorative 41) What type of wear is indicated by islands of amalgam surrounded by worn tooth structure? Attrition Abrasion Abfraction Erosion Erosion causes localized wear, leaving islands of restorative material like amalgam. 42 / 50 Category: Restorative 42) What measures the modulus of elasticity? Hardness Toughness Brittleness Resilience Resilience measures a material's ability to absorb energy and return to its original shape. 43 / 50 Category: Restorative 43) Which cement has the potential for fluoride release? Resin cement Polycarboxylate Zinc phosphosilicate Zinc phosphate Zinc phosphosilicate cement releases fluoride, providing anticariogenic benefits. 44 / 50 Category: Restorative 44) Which impression material is reversible? Polysulfide Agar Alginate PVS Agar is a reversible hydrocolloid, meaning it can transition between gel and sol states. 45 / 50 Category: Restorative 45) A crown has a space between the tooth and margin. What can this cause? Dissolution of cement Prone to caries Crown fracture All of the above A space between the crown and tooth can trap debris, leading to caries. 46 / 50 Category: Restorative 46) Which cement requires slow mixing to reach the desired consistency? Zinc phosphate GIC Resin Polycarboxylate Zinc phosphate requires slow mixing to control the exothermic reaction and achieve proper consistency. 47 / 50 Category: Restorative 47) Which approach is more esthetic for a class III restoration? Facial Lingual None Both A lingual approach is often more esthetic for class III restorations due to visibility. 48 / 50 Category: Restorative 48) A 60-year-old patient's radiograph shows increased cementum deposition compared to a 25-year-old radiograph. What is the cause? Increased alveolar bone thickness Decreased dentin thickness Decreased enamel thickness Increased cementum deposition Cementum deposition increases with age, leading to thicker cementum layers. 49 / 50 Category: Restorative 49) A class I amalgam restoration on a lower molar has a fractured cusp. What is the likely cause? Under-contoured restoration High point contact Over-contoured restoration Undermined tooth structure Undermined tooth structure due to caries or improper preparation can lead to cusp fracture. 50 / 50 Category: Restorative 50) What causes linear lesions on the facial cervical third of teeth? Erosion Attrition Abfraction Abrasion Abrasion causes linear lesions due to mechanical wear, often from brushing or foreign objects. Your score is The average score is 65% 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
