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