Fixed Prosthodontics R11 Fixed Prosthodontics SDLE MCQ Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 0% 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556 Fixed Prosthodontics R11 Fixed Prosthodontics SDLE MCQ 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 / 56 Category: Fixed Prosthodontics 1) What is the porcelain extension at the chamfer line of a metal-ceramic crown called? Porcelain collar Less collar Metal collar Full collar “Less collar” describes minimal metal exposure. 2 / 56 Category: Fixed Prosthodontics 2) Which pontic design is hardest to clean? Sanitary Modified ridge lap Ovate Ridge lap Ridge lap pontics trap debris against the ridge. 3 / 56 Category: Fixed Prosthodontics 3) How to manage a patient with a history of fractured ceramic crowns due to bruxism? Reduce functional cusp contact Eliminate functional contact Increase crown strength Use metal crowns only Eliminating functional contact prevents fractures in bruxism patients. 4 / 56 Category: Fixed Prosthodontics 4) What describes the lightness or darkness of a color? Shade Hue Chroma Value Value refers to color lightness/darkness in dentistry. 5 / 56 Category: Fixed Prosthodontics 5) Which option replaces a missing central incisor with minimal treatment? Resin-bonded bridge Removable partial denture Maryland bridge Implant Maryland bridges require minimal tooth preparation. 6 / 56 Category: Fixed Prosthodontics 6) What causes gingival swelling and blunting around a crown? Overcontoured crown Cement excess Allergic reaction Poor oral hygiene Overcontouring irritates gingival tissues. 7 / 56 Category: Fixed Prosthodontics 7) What is the best tool to clean under a 2-unit bridge? Water flosser Regular floss Interdental brush Super floss Super floss cleans pontics and abutments effectively. 8 / 56 Category: Fixed Prosthodontics 8) What is the maximum time for pouring alginate impressions? 1 day 1 hour 3 hours 15 minutes Alginate impressions distort quickly; pouring within 15 minutes is ideal. 9 / 56 Category: Fixed Prosthodontics 9) Why should hemostatic agents avoid contact with tooth surfaces? To avoid tooth discoloration To prevent soft tissue irritation To reduce sensitivity To improve bonding Hemostatic agents can cause tooth discoloration if they contact the surface. 10 / 56 Category: Fixed Prosthodontics 10) How to manage a small crack in a porcelain veneer? Polish the crack Monitor without intervention Replace the veneer Fill with composite Cracks compromise integrity; replacement is necessary. 11 / 56 Category: Fixed Prosthodontics 11) After cementation, a gap is found on the buccal surface of a crown. What should you do? Add composite Monitor and follow up Remove and recement immediately Schedule recementation for later Immediate removal and recementation prevent further complications. 12 / 56 Category: Fixed Prosthodontics 12) A patient complains of visible veneer margins. Which margin placement is best for aesthetics and minimal inflammation? Subgingival 0.5 mm Supragingival 0.5 mm Subcrustal 0.5 mm At gingival margin level Supragingival margins enhance aesthetics and reduce inflammation. 13 / 56 Category: Fixed Prosthodontics 13) What color neutralizes yellow in a restoration? Pink Green Blue Violet Violet counteracts yellow hues. 14 / 56 Category: Fixed Prosthodontics 14) A crown on #16 debonds repeatedly due to short length (3mm). What is the solution? Use stronger cement Add grooves Remake the crown Orthodontic extrusion Extrusion increases crown length for retention. 15 / 56 Category: Fixed Prosthodontics 15) What is the most aesthetic and least invasive option to replace an avulsed central incisor? Maryland bridge Implant Removable denture Three-unit bridge Maryland bridges are conservative and aesthetic. 16 / 56 Category: Fixed Prosthodontics 16) What is the best option for a badly broken tooth 1mm above gingiva? Orthodontic extrusion Extraction Crown lengthening Post and crown Extrusion increases clinical crown length for restoration. 17 / 56 Category: Fixed Prosthodontics 17) What should a technician do if an extra white block is added to porcelain? Reduce firing temperature Increase white color Increase thickness Increase translucency Balancing the white color ensures natural aesthetics. 18 / 56 Category: Fixed Prosthodontics 18) What causes bad odor and bubbles under a pontic? Abutment fracture Abutment-retainer separation Food impaction Connector fracture Separation allows bacterial accumulation, causing odor. 19 / 56 Category: Fixed Prosthodontics 19) How to prepare a veneer for a discolored, worn incisor? Incisal reduction + 1mm clearance Full coverage Reduce lingual only No incisal reduction Incisal reduction and clearance ensure proper function and aesthetics. 20 / 56 Category: Fixed Prosthodontics 20) What is the name of the groove shown in the cast image? Retention groove Index groove Memory groove Level determine groove Index grooves aid in proper alignment during fabrication. 21 / 56 Category: Fixed Prosthodontics 21) What is the issue if two anterior PFM crowns appear whitish? Porcelain contamination Glazing issue Incorrect shade selection Metal exposure Whitish color indicates metal exposure due to insufficient porcelain coverage. 22 / 56 Category: Fixed Prosthodontics 22) How to enhance aesthetics in crowns for upper premolars? Reduce non-functional cusps Reduce functional cusps No reduction Full coverage Non-functional cusp reduction improves aesthetics without compromising function. 23 / 56 Category: Fixed Prosthodontics 23) Why might a gold crown fail to seat during try-in? Thermal shrinkage Inadequate cement space Tight proximal contacts Improper occlusal reduction Tight contacts prevent full seating; adjustment is needed. 24 / 56 Category: Fixed Prosthodontics 24) What is the minimum metal thickness for a resin-bonded bridge retainer? 1.5 mm 1.1 mm 0.7 mm 0.5 mm 0.7 mm ensures strength without compromising adhesion. 25 / 56 Category: Fixed Prosthodontics 25) What is hemisection? Extracting half the tooth Splitting a multi-rooted tooth Removing a root Root amputation Hemisection involves splitting a tooth while retaining salvageable roots. 26 / 56 Category: Fixed Prosthodontics 26) What type of failure occurs when porcelain detaches from porcelain? Fracture Adhesive Cohesive Static Cohesive failure occurs between porcelain layers. 27 / 56 Category: Fixed Prosthodontics 27) How long can PVS impression pouring be delayed? 1 hour 1 week 1 day 1 month PVS impressions remain stable for up to 1 week. 28 / 56 Category: Fixed Prosthodontics 28) What is the treatment for a 9mm pocket on the MB root of #16? Root amputation Flap surgery Deep scaling Extraction Root amputation preserves the tooth while eliminating the defect. 29 / 56 Category: Fixed Prosthodontics 29) What is the occlusal reduction for a PFM crown on a non-functional cusp? 2.0 mm 1.0 mm 1.5 mm 2.5 mm 1.5 mm ensures adequate strength and space for porcelain. 30 / 56 Category: Fixed Prosthodontics 30) Which plaster type is used for RPD model casts? Type III Type V Type II Type IV Type II plaster is standard for RPD models. 31 / 56 Category: Fixed Prosthodontics 31) Which material is best for temporary anterior crowns? Polyvinyl ethyl methacrylate Bis-acrylic Polymethyl methacrylate Composite Bis-acrylic offers strength and aesthetics for temporaries. 32 / 56 Category: Fixed Prosthodontics 32) How to improve retention in a short crown? Reduce occlusal load Use stronger cement Crown lengthening Add grooves Grooves enhance mechanical retention in short crowns. 33 / 56 Category: Fixed Prosthodontics 33) Which pontic is best for immediate post-extraction sites? Ovate Conical Modified ridge lap Sanitary Ovate pontics adapt well to healing sockets. 34 / 56 Category: Fixed Prosthodontics 34) How to manage incisal chipping on a full-ceramic bridge? Remake the bridge Polish the chipped area Chairside composite repair Send to lab for repair Extensive chipping requires remaking the bridge. 35 / 56 Category: Fixed Prosthodontics 35) After taking a PVS impression for a lower molar, a void is found on the buccal surface. What should you do? Ignore it Modify the impression Ask the technician to correct it Retake the impression Voids compromise accuracy; a retake is necessary. 36 / 56 Category: Fixed Prosthodontics 36) Gingival inflammation post-cementation is likely due to: Allergic reaction Poor marginal fit Occlusal imbalance Biological width violation Violating biological width leads to chronic inflammation. 37 / 56 Category: Fixed Prosthodontics 37) What is a complication of improper retraction cord placement? Bleeding Gingival enlargement Gingival recession Tooth mobility Improper placement can traumatize gingiva, causing recession. 38 / 56 Category: Fixed Prosthodontics 38) What is a pier abutment? A splinted abutment A cantilever abutment A freestanding abutment A secondary abutment Pier abutments are freestanding and support prostheses independently. 39 / 56 Category: Fixed Prosthodontics 39) How to manage a fractured FPD retainer? Remake the FPD Cement with heavy occlusion Monitor Solder the fracture Fractured retainers compromise integrity; remaking is necessary. 40 / 56 Category: Fixed Prosthodontics 40) How many abutments are needed to replace teeth 24 and 25? 3 4 1 2 Two abutments (e.g., 23 and 26) typically suffice for a 2-unit FPD. 41 / 56 Category: Fixed Prosthodontics 41) During try-in of a PFM crown, the ceramic layer falls off the metal. What is the reason? Improper bonding Thermal expansion mismatch Insufficient porcelain thickness Metal contamination Improper bonding between ceramic and metal is the primary cause. 42 / 56 Category: Fixed Prosthodontics 42) Which pontic design offers superior aesthetics for replacing #15? Ovate Saddle Modified ridge lap Sanitary Ovate pontics mimic natural tooth emergence. 43 / 56 Category: Fixed Prosthodontics 43) Why might a veneer detach from the prepared tooth? Moisture exposure Contaminated veneer surface Weak bonding agent Insufficient etching Contamination prevents proper bonding. 44 / 56 Category: Fixed Prosthodontics 44) A patient selects an unsuitable veneer shade. What should you do? Refer to another doctor Let the lab decide Use a default shade Choose the shade for her The dentist should guide shade selection for optimal aesthetics. 45 / 56 Category: Fixed Prosthodontics 45) What is the recommended thickness of metal in a PFM crown at the incisal edge? 1.0 mm 0.7 mm 0.5 mm 0.3 mm 0.7 mm ensures strength without compromising aesthetics. 46 / 56 Category: Fixed Prosthodontics 46) How to manage a fiber post with 2mm of remaining GP? Use a shorter post Remove GP manually Proceed with post placement Refer for endodontic retreatment Inadequate GP indicates endodontic failure; retreatment is needed. 47 / 56 Category: Fixed Prosthodontics 47) What causes a chalky white surface on a cast? Vacuum spacing Slurry water contamination Saliva thin film Over-drying of impression Over-drying the impression leads to chalky surfaces. 48 / 56 Category: Fixed Prosthodontics 48) What prep design is needed for a tooth with slight attrition? No prep Feather edge Lingual chamfer Full shoulder Lingual chamfer preps conserve tooth structure. 49 / 56 Category: Fixed Prosthodontics 49) A crown debonds days after cementation. What is the likely cause? Natural tooth splinted with implant Incorrect cementation technique Weak cement Poor tooth preparation Debonding often results from improper cementation. 50 / 56 Category: Fixed Prosthodontics 50) Which material is unsuitable for temporary crowns on vital teeth? Bis-acrylic ZOE Polymethyl methacrylate Composite PMMA can generate excessive heat, risking pulp damage. 51 / 56 Category: Fixed Prosthodontics 51) A patient with metal-ceramic crowns has gingival inflammation. What is the cause? Biological width violation Cement excess Poor oral hygiene Metal allergy Subgingival margins violating biological width cause inflammation. 52 / 56 Category: Fixed Prosthodontics 52) How much facial reduction is needed for a PFM crown? 1.5 mm 2.5 mm 1.0 mm 2.0 mm 1.5 mm balances aesthetics and structural integrity. 53 / 56 Category: Fixed Prosthodontics 53) How to manage bleeding during impression with a temporary crown? Replace the crown Use ferric sulfate Use epinephrine Delay the impression Bleeding indicates tissue trauma; crown replacement allows healing. 54 / 56 Category: Fixed Prosthodontics 54) Why clean a tooth with a bur after removing a ZOE temporary crown? To reduce sensitivity To improve retention To remove ZOE residue To smooth the surface Bur cleaning enhances retention for the final crown. 55 / 56 Category: Fixed Prosthodontics 55) Which instrument measures PFM metal thickness during try-in? Micrometer Iwanson caliper Ruler Boley gauge Iwanson calipers provide precise metal thickness measurements. 56 / 56 Category: Fixed Prosthodontics 56) Which cusps shear in a patient with crossbite? Incisal edges only All cusps equally Buccal (upper) and lingual (lower) Palatal (upper) and buccal (lower) Crossbite causes shear forces on palatal upper and buccal lower cusps. Your score is The average score is 54% 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
