Fixed Prosthodontics Fixed Prosthodontics 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 Fixed Prosthodontics Fixed Prosthodontics 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: Fixed Prosthodontics 1) What type of bur is used for creating grooves during tooth preparation? Diamond bur Tapered fissure Round bur Inverted bur A tapered fissure bur is used for creating precise grooves during tooth preparation. 2 / 50 Category: Fixed Prosthodontics 2) A patient is missing teeth #17-14, #34-37, and #44-47. How should occlusion be recorded? Arbitrary mounting with MIC Bite block with MIC Bite block and face bow with CR Arbitrary mounting with CR Using a bite block and face bow in centric relation (CR) ensures accurate occlusion recording. 3 / 50 Category: Fixed Prosthodontics 3) A patient has a crown on #26 with protrusive interference. How can you manage it? Buccal inclination of upper Lingual inclination of upper Buccal inclination of lower Mesial inclination of upper Adjusting the mesial inclination of the upper crown can eliminate protrusive interference. 4 / 50 Category: Fixed Prosthodontics 4) A patient is missing tooth #21 and does not want extensive treatment. What is the best option? Cantilever fixed Fixed 3-unit Maryland Implant A Maryland bridge is a conservative option for replacing a single missing tooth. 5 / 50 Category: Fixed Prosthodontics 5) An elderly patient with osteoarthritis needs a 3-unit bridge in the upper posterior area. Which pontic design is suitable? Modified ridge lap Sanitary Ovate Ridge lap A sanitary pontic design is easy to clean and suitable for patients with limited dexterity. 6 / 50 Category: Fixed Prosthodontics 6) A patient has pain one week after cementing a new crown. What is the management? Desensitizing agent RCT DPC Remove crown Removing the crown allows for assessment and management of the underlying cause of pain. 7 / 50 Category: Fixed Prosthodontics 7) A ceramic onlay grips the shim stock but has no contact with other teeth. What does this mean? Occlusal interference, needs adjustment Deficient contact Good contact Slight hyper occlusion The onlay needs adjustment to ensure proper occlusal contact with adjacent teeth. 8 / 50 Category: Fixed Prosthodontics 8) A patient with stable MIC needs a single crown. What is the most important factor to achieve? Eccentric CR Centric MIC Achieving maximum intercuspation (MIC) is crucial for stability and function in single crown cases. 9 / 50 Category: Fixed Prosthodontics 9) A patient has two molars with fallen crowns. What is the best long-term treatment? Recement with RelyX Crown lengthening Long post Splint teeth together Crown lengthening provides better retention for the crowns in the long term. 10 / 50 Category: Fixed Prosthodontics 10) A doctor wants to reduce the chroma of a restoration. What should be added? Add violet Add yellow Add blue Add green Adding violet can reduce the chroma and improve the esthetics of the restoration. 11 / 50 Category: Fixed Prosthodontics 11) How long should you etch enamel for veneer cementation? 20 seconds 30 seconds 15 seconds 40 seconds Etching enamel for 20 seconds is sufficient for proper bonding of veneers. 12 / 50 Category: Fixed Prosthodontics 12) A patient with a bridge from #34 to #36 complains of malodor. Bubbles are found under the retainer of #34. What is the cause? Fractured connector Space between abutment and retainer Food impingement under pontic Fractured abutment or retainer A space between the abutment and retainer can trap debris, causing malodor. 13 / 50 Category: Fixed Prosthodontics 13) What is the first step during lithium disilicate cementation? Cleaning with alcohol Etching with hydrofluoric acid Etching with phosphoric acid Sandblasting Etching with hydrofluoric acid is the first step to prepare the lithium disilicate surface for bonding. 14 / 50 Category: Fixed Prosthodontics 14) A patient’s crown keeps falling off. The tooth height is 5 mm. What should be done? Use stronger cement Re-prepare the tooth Add retention grooves Extract the tooth Adding retention grooves improves the mechanical retention of the crown. 15 / 50 Category: Fixed Prosthodontics 15) A photo shows a crown on #46 with open margins mesially and distally. What is the cause? Distortion of final impression Shrinkage during casting Over-tapered preparation Expansion of core Shrinkage during casting can lead to open margins in the final crown. 16 / 50 Category: Fixed Prosthodontics 16) What is the purpose of the opaque layer in a crown? To mask the oxide layer To improve bonding To increase strength To reduce cost The opaque layer masks the oxide layer on the metal, improving the esthetics of the crown. 17 / 50 Category: Fixed Prosthodontics 17) A patient with a large amalgam restoration and caries is a bruxer. What is the best restoration option? Amalgam Ceramic onlay Composite Metal crown A metal crown is the most durable option for a bruxer with a large restoration. 18 / 50 Category: Fixed Prosthodontics 18) A patient complains of bleeding and painful gingiva around anterior crowns. How to manage? Surgical crown lengthening Shallow margins of crowns Deep scaling RCT Shallow margins can irritate the gingiva, leading to bleeding and pain. 19 / 50 Category: Fixed Prosthodontics 19) How much should be removed from the incisal edge during preparation for a ceramic crown? 1.5 mm 0.5 mm 2 mm 1 mm 2 mm of incisal reduction is required for adequate strength and esthetics in ceramic crowns. 20 / 50 Category: Fixed Prosthodontics 20) A patient has mild facial staining and incipient caries. What is the best preparation for esthetics? None of the above Facial Occlusal gingival Lingual Facial preparation is necessary to address staining and caries while maintaining esthetics. 21 / 50 Category: Fixed Prosthodontics 21) What is the flexure strength of a 3-unit bridge with 3 pontics? 27 MPa 25 MPa 20 MPa 30 MPa A 3-unit bridge with 3 pontics typically has a flexure strength of 27 MPa. 22 / 50 Category: Fixed Prosthodontics 22) A patient with good oral hygiene and sound abutments wants to replace a missing central incisor. What is the best option? Implant-supported FPD Cantilever FPD Conventional FPD Removable A conventional FPD is the best option for replacing a single missing tooth with sound abutments. 23 / 50 Category: Fixed Prosthodontics 23) A patient complains of a metallic taste and pain after cementing a cast post and crown. What is the cause? Vertical root fracture Poor cementation Eccentric occlusal interference Mobile crown A mobile crown can cause pain and a metallic taste due to movement and irritation. 24 / 50 Category: Fixed Prosthodontics 24) A patient has a 3-unit ceramic bridge from #11 to #22 with half of the incisal edge of #11 chipped. What should be done? Remove and take a new impression Composite repair at the lab Composite repair at the clinic Re-cement the bridge A large defect like half of the incisal edge requires a new impression and fabrication. 25 / 50 Category: Fixed Prosthodontics 25) Which restoration has the most glass substrate? Leucite-reinforced ceramic Lithium disilicate Feldspathic Zirconia Feldspathic porcelain has the highest glass content, making it highly esthetic. 26 / 50 Category: Fixed Prosthodontics 26) What is a complication of a mesially tilted #37 for a 3-unit bridge? Irreversible pulpitis Short mesial axial wall Fracture Pulp exposure A mesially tilted tooth can result in a short mesial axial wall, compromising retention. 27 / 50 Category: Fixed Prosthodontics 27) A patient wants to restore 3 missing lower anteriors. The dentist decides on tooth #32 based on what? Incisal slopes inclined distally Same mesiodistal width on each side Bilaterally symmetrical Tooth is off-center The incisal slopes inclined distally help determine the correct position of the missing teeth. 28 / 50 Category: Fixed Prosthodontics 28) A patient has a class IV fracture on the mesial side of an anterior tooth involving the contact area. Where should the contact be placed? Middle third Gingival third Incisal third Whole mesial contact surface Placing the contact in the incisal third restores function and esthetics effectively. 29 / 50 Category: Fixed Prosthodontics 29) What type of finish line is created with a rounded bur? Shoulder Shoulder with bevel Chamfer Feather A rounded bur creates a chamfer finish line, which is commonly used in crown preparations. 30 / 50 Category: Fixed Prosthodontics 30) Which pontic design is hardest to clean? Ridge lap Ovate Modified ridge lap Sanitary A ridge lap pontic is difficult to clean due to its close contact with the ridge. 31 / 50 Category: Fixed Prosthodontics 31) A patient complains of food accumulation in the cervical third of a newly placed crown. What could be the cause? Poor marginal fit Fractured connector Crown emergence profile Open contact An improper crown emergence profile can lead to food accumulation in the cervical area. 32 / 50 Category: Fixed Prosthodontics 32) What is a common reason for chipping porcelain on a PFM crown? Bonding between metal and porcelain Poor cementation Insufficient porcelain thickness Occlusal trauma Insufficient porcelain thickness can lead to chipping under occlusal forces. 33 / 50 Category: Fixed Prosthodontics 33) A patient complains of discolored tooth #12. What is the best treatment? Veneer Internal bleaching Crown Composite A veneer is the best option for addressing discoloration while preserving tooth structure. 34 / 50 Category: Fixed Prosthodontics 34) During try-in of a 3-unit FPD, there is torque in the retainer. What is the management? Redo the whole FPD Fix the retainer part Re-cement the FPD Sectioning of the FPD Sectioning the FPD allows for adjustment and proper fit of the retainer. 35 / 50 Category: Fixed Prosthodontics 35) A patient wants a fixed crown, and the dentist reduces the margin supragingival 0.5 mm, interocclusal space 1.5 mm, and axial wall length 2 mm. What is violated? Preservation of tooth structure Marginal integrity Retention and support Preservation of periodontium A 2 mm axial wall length may compromise retention and support for the crown. 36 / 50 Category: Fixed Prosthodontics 36) A patient wants to replace teeth #14 and #15. What is the best bridge design? 4-unit (16, 13) 5-unit non-rigid connector 5-unit fixed-fixed 6-unit A 4-unit bridge from #16 to #13 provides adequate support for replacing #14 and #15. 37 / 50 Category: Fixed Prosthodontics 37) What is the phosphoric acid percentage used for etching the abutment of a ceramic crown? 50% 15% 20% 37% 37% phosphoric acid is commonly used for etching tooth structure before bonding ceramic crowns. 38 / 50 Category: Fixed Prosthodontics 38) A female patient complains of soreness on the occlusal area and premature contact. What is the cause? High occlusal contact Decreased freeway space Decreased vertical dimension Poor marginal fit Decreased freeway space can cause premature contact and soreness in the occlusal area. 39 / 50 Category: Fixed Prosthodontics 39) A premolar with a full-coverage crown has a vertical root fracture. What is the most likely cause? Poor quality RCT Overload Poor cementation Wide and short root A wide and short root is more prone to vertical root fractures under occlusal forces. 40 / 50 Category: Fixed Prosthodontics 40) What is the incisal reduction for a metal-ceramic crown on tooth #11? 2.5 mm 1 mm 1.5 mm 2 mm A 2 mm incisal reduction is required for adequate strength and esthetics in metal-ceramic crowns. 41 / 50 Category: Fixed Prosthodontics 41) A patient wants to restore centrals. In which scheme will they touch? CO Protrusive CR MIC Protrusive movement ensures the centrals touch correctly during function. 42 / 50 Category: Fixed Prosthodontics 42) During try-in of an upper molar, the crown glides superior-anteriorly. What should be adjusted? Mesial inclination of the upper Distal inclination of the mandible Buccal inclination of the upper Lingual inclination of the mandible Adjusting the mesial inclination of the upper crown can correct the superior-anterior glide. 43 / 50 Category: Fixed Prosthodontics 43) What type of occlusion is best for full-mouth rehabilitation? Canine guidance Group function Bilateral None of the above Canine guidance provides stable and functional occlusion for full-mouth rehabilitation. 44 / 50 Category: Fixed Prosthodontics 44) An ovate pontic causes tissue irritation. What material is most likely the cause? Nickel chromium Resin Gold Porcelain Nickel chromium can cause tissue irritation due to its rigidity and potential for allergic reactions. 45 / 50 Category: Fixed Prosthodontics 45) During metal try-in, a patient feels like seeds are stuck between the teeth. What is the most likely cause? Poor marginal fit Fractured connector High occlusal contact Tight proximal contact Tight proximal contact can create the sensation of something stuck between the teeth. 46 / 50 Category: Fixed Prosthodontics 46) What is the purpose of a post in a restored tooth? Reduce cost Improve esthetics Provide core retention Provide canal retention The primary purpose of a post is to provide retention for the core material. 47 / 50 Category: Fixed Prosthodontics 47) A patient has a conservative access cavity on #36 with an MO amalgam restoration after RCT. What is the best restoration? Amalgam core Cast post and ceramic crown Cast post and PFM Composite core and ceramic crown A cast post and PFM crown provide the necessary strength and support for the tooth. 48 / 50 Category: Fixed Prosthodontics 48) A patient with a deep bite has a labial fracture of a PFM crown on the lower anterior. What is the cause? Fractured connector Poor cementation Occlusal overload Incorrect anterior guidance Occlusal overload due to a deep bite can cause fractures in PFM crowns. 49 / 50 Category: Fixed Prosthodontics 49) A patient has gum recession and a small restoration on an anterior tooth. What is aesthetically important? Buccal-lingual width of gum Vertical height of gum MIC Mesiodistal width of restoration The vertical height of the gum is crucial for esthetics in cases of recession. 50 / 50 Category: Fixed Prosthodontics 50) What component attaches the prosthesis to the abutment tooth? Crown Pontic Connector Retainer The retainer is the component that attaches the prosthesis to the abutment tooth. Your score is The average score is 72% 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