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) 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. 2 / 50 Category: Restorative 2) Why is a cool glass slab recommended for mixing zinc oxide? Shorten setting time Improve consistency Increase solubility Reduce exothermic reaction A cool glass slab slows the setting reaction, allowing more working time. 3 / 50 Category: Restorative 3) What is atraumatic restorative treatment (ART)? Conservative treatment Microabrasion No treatment Surgical intervention ART focuses on minimally invasive techniques to remove caries and restore teeth. 4 / 50 Category: Restorative 4) A patient wants to replace an amalgam restoration with 2 mm of remaining dentin. What liner should be used? Calcium hydroxide RMGIC GIC No liner With 2 mm of remaining dentin, no liner is necessary as the dentin provides sufficient protection. 5 / 50 Category: Restorative 5) Which cement requires slow mixing to reach the desired consistency? GIC Resin Polycarboxylate Zinc phosphate Zinc phosphate requires slow mixing to control the exothermic reaction and achieve proper consistency. 6 / 50 Category: Restorative 6) A broken tooth cannot accommodate a rubber dam. What is the best alternative? No isolation Place on adjacent teeth Cotton roll isolation Use a clamp Placing the rubber dam on adjacent teeth ensures proper isolation for the broken tooth. 7 / 50 Category: Restorative 7) What happens if alginate is left under a wet towel for an hour before pouring? Shrinkage Syneresis Expansion Imbibition Imbibition causes the alginate to absorb water, leading to dimensional changes. 8 / 50 Category: Restorative 8) What type of wear is indicated by islands of amalgam surrounded by worn tooth structure? Abfraction Attrition Erosion Abrasion Erosion causes localized wear, leaving islands of restorative material like amalgam. 9 / 50 Category: Restorative 9) How can stone setting be accelerated without compromising quality? Reduce mixing time Increase powder/liquid ratio Hot tap water Slurry water Hot tap water accelerates the setting reaction of stone without affecting its properties. 10 / 50 Category: Restorative 10) A 15-year-old patient with pain and radiolucency under #46 wants extraction, but the mother is unsure. What is the best action? Do the patient's desire No treatment Ask for parental consent Refuse extraction Parental consent is required for minors, and the dentist should discuss options with both parties. 11 / 50 Category: Restorative 11) What is the dentist's position when working on teeth #41 and #31? 12 o'clock 7 o'clock 9 o'clock 11 o'clock The 12 o'clock position provides optimal access to the mandibular anterior teeth. 12 / 50 Category: Restorative 12) What happens when filler content in a restoration is increased? Increased hydrophilicity Decreased strength Increased shrinkage Increased wear resistance Higher filler content improves wear resistance and durability of the restoration. 13 / 50 Category: Restorative 13) A class V restoration has less than 0.5 mm of remaining dentin thickness. What liner should be used? GIC RMGIC Zinc oxide Calcium hydroxide GIC provides a protective barrier and adhesion for deep class V restorations. 14 / 50 Category: Restorative 14) A patient has a small amalgam restoration in #16 that needs replacement. What is the best option? Glass ionomer Gold Cast ceramic Composite Composite is the most aesthetic and functional option for replacing small amalgam restorations. 15 / 50 Category: Restorative 15) How can alginate impression setting be accelerated for a gagging patient? Hot water Increase mixing time Reduce powder/liquid ratio Cold water Hot water accelerates the setting of alginate, reducing the time the impression material is in the mouth. 16 / 50 Category: Restorative 16) A patient experiences pain when clenching after a class I amalgam restoration. What is the likely cause? Over-contoured restoration Under-contoured restoration Galvanic reaction High point contact High point contact causes pain during clenching due to excessive occlusal pressure. 17 / 50 Category: Restorative 17) 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. 18 / 50 Category: Restorative 18) What does chronic fluoride exposure primarily affect? Both Skeletal structures None Dental structures Chronic fluoride exposure primarily affects dental structures, causing fluorosis. 19 / 50 Category: Restorative 19) Which clamp is used for an upper molar? W8 W4 W7 W2 The W8 clamp is specifically designed for upper molars, providing secure retention. 20 / 50 Category: Restorative 20) Which cement has the potential for fluoride release? Zinc phosphate Zinc phosphosilicate Resin cement Polycarboxylate Zinc phosphosilicate cement releases fluoride, providing anticariogenic benefits. 21 / 50 Category: Restorative 21) What is the best method to diagnose interproximal caries? Periapical radiograph Clinical examination Transillumination Bitewing Bitewing radiographs provide clear visualization of interproximal caries. 22 / 50 Category: Restorative 22) Which clamp is used for a class V restoration? 212 W8 A12 A13 The 212 clamp is designed for class V restorations, providing optimal retention and stability. 23 / 50 Category: Restorative 23) What causes linear lesions on the facial cervical third of teeth? Abfraction Erosion Attrition Abrasion Abrasion causes linear lesions due to mechanical wear, often from brushing or foreign objects. 24 / 50 Category: Restorative 24) A 60-year-old patient's radiograph shows increased cementum deposition compared to a 25-year-old radiograph. What is the cause? Decreased dentin thickness Decreased enamel thickness Increased alveolar bone thickness Increased cementum deposition Cementum deposition increases with age, leading to thicker cementum layers. 25 / 50 Category: Restorative 25) Which approach is more esthetic for a class III restoration? Lingual None Both Facial A lingual approach is often more esthetic for class III restorations due to visibility. 26 / 50 Category: Restorative 26) A patient has an overhanging amalgam restoration with no symptoms. What is the best action? No treatment Remove overhang Restoration Monitor Removing the overhang prevents periodontal issues and improves oral health. 27 / 50 Category: Restorative 27) Why does a pin in an amalgam restoration fracture? Excessive force Poor material quality All of the above Incorrect pin placement Pin fracture can result from multiple factors, including placement, force, and material quality. 28 / 50 Category: Restorative 28) How should carbide burs be evaluated for survival and effectiveness? Low speed out of oral cavity High speed out of oral cavity Low speed before tooth contact High speed before tooth contact Testing burs at high speed before tooth contact ensures their effectiveness and longevity. 29 / 50 Category: Restorative 29) A class I amalgam restoration on a lower molar has a fractured cusp. What is the likely cause? Undermined tooth structure High point contact Over-contoured restoration Under-contoured restoration Undermined tooth structure due to caries or improper preparation can lead to cusp fracture. 30 / 50 Category: Restorative 30) In a deep cavity, where should decay removal begin to preserve pulp health? Enamel first Floor first Dentin first Axial wall first Starting with the axial wall reduces the risk of pulp exposure and preserves pulp health. 31 / 50 Category: Restorative 31) What measures the modulus of elasticity? Hardness Resilience Toughness Brittleness Resilience measures a material's ability to absorb energy and return to its original shape. 32 / 50 Category: Restorative 32) A crown has a space between the tooth and margin. What can this cause? Prone to caries Crown fracture Dissolution of cement All of the above A space between the crown and tooth can trap debris, leading to caries. 33 / 50 Category: Restorative 33) Which impression material is reversible? Agar Alginate Polysulfide PVS Agar is a reversible hydrocolloid, meaning it can transition between gel and sol states. 34 / 50 Category: Restorative 34) A class I restoration with deep caries has 0.5 mm of remaining dentin thickness. What base should be used? GIC amalgam Zinc oxide RMGIC RMGIC is ideal for deep caries with minimal dentin thickness due to its strength and fluoride release. 35 / 50 Category: Restorative 35) What are the components of preventive resin restorations? RMGI Composite Glass ionomer Componer Preventive resin restorations primarily use composite due to its aesthetic and adhesive properties. 36 / 50 Category: Restorative 36) What causes a grainy impression when moisture contaminates the powder? Distorted impression Tear in impression Chalky cast Grainy impression Moisture contamination leads to a grainy texture in the impression material. 37 / 50 Category: Restorative 37) What material is used for flasking casts? Die stone Wax Refractory material Plaster Die stone is commonly used for flasking due to its strength and accuracy. 38 / 50 Category: Restorative 38) What is the purpose of a liner in a casting ring? Reduce porosity Allow uniform expansion Prevent shrinkage Increase strength A liner allows uniform expansion of the investment material during casting. 39 / 50 Category: Restorative 39) What is the definition of resilience? Brittleness Ability to absorb energy Hardness Resistance to fracture Resilience refers to a material's ability to absorb energy without permanent deformation. 40 / 50 Category: Restorative 40) What is the cervico-occlusal length of a molar? 10.5 mm 7.5 mm 9.5 mm 8.5 mm The cervico-occlusal length of a molar is typically around 7.5 mm. 41 / 50 Category: Restorative 41) 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. 42 / 50 Category: Restorative 42) What type of collagen is present in the pulp during development? Type 4 Type 3 Type 2 Type 1 Type 3 collagen is the primary collagen type in the pulp during development. 43 / 50 Category: Restorative 43) What is the best restoration for a class V cavity in a patient with Sjogren's syndrome? GIC Composite RMGIC Amalgam GIC is ideal for patients with Sjogren's syndrome due to its moisture tolerance and fluoride release. 44 / 50 Category: Restorative 44) What is the fourth dental material category besides polymers, metals, and porcelain? Stone Cement Composite Alginate Composite is a distinct category of dental materials, combining resin and filler particles. 45 / 50 Category: Restorative 45) What is the characteristic setting reaction of PVS? Addition Cross-linking Condensation Polymerization PVS sets through an addition reaction, which is more stable and predictable. 46 / 50 Category: Restorative 46) What is the strongest phase in amalgam? Gamma 2 Gamma Beta Gamma 1 The gamma phase is the strongest and most stable phase in amalgam. 47 / 50 Category: Restorative 47) Which type of GIC is used as a luting agent? Type 4 Type 3 Type 1 Type 2 Type 1 GIC is specifically designed for cementation and luting purposes. 48 / 50 Category: Restorative 48) What is the advantage of using spherical particles in dental amalgam? All of the above Easier to condense Higher strength Less residual mercury Spherical particles in amalgam improve condensation, strength, and reduce residual mercury, making them superior 49 / 50 Category: Restorative 49) A 62-year-old patient has posterior recession and arrested root caries. What is the best treatment? Systemic fluoride Composite restoration Topical fluoride GIC restoration GIC restoration is ideal for arrested root caries due to its adhesion and fluoride release. 50 / 50 Category: Restorative 50) A mild class I amalgam on a premolar needs replacement. What is the best option? Composite Amalgam Crown No treatment Amalgam is still a viable option for mild restorations due to its durability and cost-effectiveness. Your score is The average score is 73% 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
