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% 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354 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 / 54 Category: Fixed Prosthodontics 1) A crown debonds days after cementation. What is the likely cause? Weak cement Incorrect cementation technique Poor tooth preparation Natural tooth splinted with implant Debonding often results from improper cementation. 2 / 54 Category: Fixed Prosthodontics 2) What color neutralizes yellow in a restoration? Pink Green Blue Violet Violet counteracts yellow hues. 3 / 54 Category: Fixed Prosthodontics 3) What prep design is needed for a tooth with slight attrition? Feather edge No prep Full shoulder Lingual chamfer Lingual chamfer preps conserve tooth structure. 4 / 54 Category: Fixed Prosthodontics 4) What causes gingival swelling and blunting around a crown? Cement excess Overcontoured crown Poor oral hygiene Allergic reaction Overcontouring irritates gingival tissues. 5 / 54 Category: Fixed Prosthodontics 5) What is the treatment for a 9mm pocket on the MB root of #16? Deep scaling Flap surgery Extraction Root amputation Root amputation preserves the tooth while eliminating the defect. 6 / 54 Category: Fixed Prosthodontics 6) A crown on #16 debonds repeatedly due to short length (3mm). What is the solution? Remake the crown Use stronger cement Add grooves Orthodontic extrusion Extrusion increases crown length for retention. 7 / 54 Category: Fixed Prosthodontics 7) What is the minimum metal thickness for a resin-bonded bridge retainer? 1.1 mm 1.5 mm 0.7 mm 0.5 mm 0.7 mm ensures strength without compromising adhesion. 8 / 54 Category: Fixed Prosthodontics 8) What describes the lightness or darkness of a color? Chroma Shade Value Hue Value refers to color lightness/darkness in dentistry. 9 / 54 Category: Fixed Prosthodontics 9) Which instrument measures PFM metal thickness during try-in? Ruler Micrometer Boley gauge Iwanson caliper Iwanson calipers provide precise metal thickness measurements. 10 / 54 Category: Fixed Prosthodontics 10) How to manage incisal chipping on a full-ceramic bridge? Remake the bridge Chairside composite repair Send to lab for repair Polish the chipped area Extensive chipping requires remaking the bridge. 11 / 54 Category: Fixed Prosthodontics 11) What is the best tool to clean under a 2-unit bridge? Interdental brush Regular floss Super floss Water flosser Super floss cleans pontics and abutments effectively. 12 / 54 Category: Fixed Prosthodontics 12) Which pontic is best for immediate post-extraction sites? Ovate Modified ridge lap Sanitary Conical Ovate pontics adapt well to healing sockets. 13 / 54 Category: Fixed Prosthodontics 13) Which material is unsuitable for temporary crowns on vital teeth? Composite ZOE Polymethyl methacrylate Bis-acrylic PMMA can generate excessive heat, risking pulp damage. 14 / 54 Category: Fixed Prosthodontics 14) How to prepare a veneer for a discolored, worn incisor? Reduce lingual only No incisal reduction Full coverage Incisal reduction + 1mm clearance Incisal reduction and clearance ensure proper function and aesthetics. 15 / 54 Category: Fixed Prosthodontics 15) What type of failure occurs when porcelain detaches from porcelain? Adhesive Fracture Cohesive Static Cohesive failure occurs between porcelain layers. 16 / 54 Category: Fixed Prosthodontics 16) How long can PVS impression pouring be delayed? 1 week 1 day 1 month 1 hour PVS impressions remain stable for up to 1 week. 17 / 54 Category: Fixed Prosthodontics 17) Which pontic design offers superior aesthetics for replacing #15? Ovate Modified ridge lap Saddle Sanitary Ovate pontics mimic natural tooth emergence. 18 / 54 Category: Fixed Prosthodontics 18) 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. 19 / 54 Category: Fixed Prosthodontics 19) How to manage a fiber post with 2mm of remaining GP? Refer for endodontic retreatment Remove GP manually Proceed with post placement Use a shorter post Inadequate GP indicates endodontic failure; retreatment is needed. 20 / 54 Category: Fixed Prosthodontics 20) Why might a veneer detach from the prepared tooth? Insufficient etching Moisture exposure Contaminated veneer surface Weak bonding agent Contamination prevents proper bonding. 21 / 54 Category: Fixed Prosthodontics 21) A patient selects an unsuitable veneer shade. What should you do? Choose the shade for her Refer to another doctor Let the lab decide Use a default shade The dentist should guide shade selection for optimal aesthetics. 22 / 54 Category: Fixed Prosthodontics 22) How to improve retention in a short crown? Add grooves Reduce occlusal load Crown lengthening Use stronger cement Grooves enhance mechanical retention in short crowns. 23 / 54 Category: Fixed Prosthodontics 23) Which pontic design is hardest to clean? Sanitary Ridge lap Ovate Modified ridge lap Ridge lap pontics trap debris against the ridge. 24 / 54 Category: Fixed Prosthodontics 24) How to enhance aesthetics in crowns for upper premolars? Reduce non-functional cusps Full coverage Reduce functional cusps No reduction Non-functional cusp reduction improves aesthetics without compromising function. 25 / 54 Category: Fixed Prosthodontics 25) How much facial reduction is needed for a PFM crown? 1.0 mm 1.5 mm 2.5 mm 2.0 mm 1.5 mm balances aesthetics and structural integrity. 26 / 54 Category: Fixed Prosthodontics 26) Gingival inflammation post-cementation is likely due to: Biological width violation Allergic reaction Poor marginal fit Occlusal imbalance Violating biological width leads to chronic inflammation. 27 / 54 Category: Fixed Prosthodontics 27) How to manage bleeding during impression with a temporary crown? Replace the crown Delay the impression Use ferric sulfate Use epinephrine Bleeding indicates tissue trauma; crown replacement allows healing. 28 / 54 Category: Fixed Prosthodontics 28) What is the occlusal reduction for a PFM crown on a non-functional cusp? 2.0 mm 2.5 mm 1.0 mm 1.5 mm 1.5 mm ensures adequate strength and space for porcelain. 29 / 54 Category: Fixed Prosthodontics 29) How to manage a small crack in a porcelain veneer? Polish the crack Monitor without intervention Fill with composite Replace the veneer Cracks compromise integrity; replacement is necessary. 30 / 54 Category: Fixed Prosthodontics 30) How to manage a patient with a history of fractured ceramic crowns due to bruxism? Eliminate functional contact Increase crown strength Use metal crowns only Reduce functional cusp contact Eliminating functional contact prevents fractures in bruxism patients. 31 / 54 Category: Fixed Prosthodontics 31) What is the name of the groove shown in the cast image? Level determine groove Index groove Retention groove Memory groove Index grooves aid in proper alignment during fabrication. 32 / 54 Category: Fixed Prosthodontics 32) How to manage a fractured FPD retainer? Monitor Remake the FPD Solder the fracture Cement with heavy occlusion Fractured retainers compromise integrity; remaking is necessary. 33 / 54 Category: Fixed Prosthodontics 33) After cementation, a gap is found on the buccal surface of a crown. What should you do? Add composite Schedule recementation for later Monitor and follow up Remove and recement immediately Immediate removal and recementation prevent further complications. 34 / 54 Category: Fixed Prosthodontics 34) What is a pier abutment? A splinted abutment A secondary abutment A freestanding abutment A cantilever abutment Pier abutments are freestanding and support prostheses independently. 35 / 54 Category: Fixed Prosthodontics 35) What causes bad odor and bubbles under a pontic? Abutment-retainer separation Food impaction Connector fracture Abutment fracture Separation allows bacterial accumulation, causing odor. 36 / 54 Category: Fixed Prosthodontics 36) Which option replaces a missing central incisor with minimal treatment? Implant Resin-bonded bridge Removable partial denture Maryland bridge Maryland bridges require minimal tooth preparation. 37 / 54 Category: Fixed Prosthodontics 37) Why clean a tooth with a bur after removing a ZOE temporary crown? To remove ZOE residue To improve retention To reduce sensitivity To smooth the surface Bur cleaning enhances retention for the final crown. 38 / 54 Category: Fixed Prosthodontics 38) What is the porcelain extension at the chamfer line of a metal-ceramic crown called? Full collar Less collar Metal collar Porcelain collar “Less collar” describes minimal metal exposure. 39 / 54 Category: Fixed Prosthodontics 39) What is the most aesthetic and least invasive option to replace an avulsed central incisor? Three-unit bridge Implant Removable denture Maryland bridge Maryland bridges are conservative and aesthetic. 40 / 54 Category: Fixed Prosthodontics 40) Which cusps shear in a patient with crossbite? Incisal edges only Palatal (upper) and buccal (lower) Buccal (upper) and lingual (lower) All cusps equally Crossbite causes shear forces on palatal upper and buccal lower cusps. 41 / 54 Category: Fixed Prosthodontics 41) What is the issue if two anterior PFM crowns appear whitish? Porcelain contamination Incorrect shade selection Glazing issue Metal exposure Whitish color indicates metal exposure due to insufficient porcelain coverage. 42 / 54 Category: Fixed Prosthodontics 42) Why should hemostatic agents avoid contact with tooth surfaces? To reduce sensitivity To avoid tooth discoloration To prevent soft tissue irritation To improve bonding Hemostatic agents can cause tooth discoloration if they contact the surface. 43 / 54 Category: Fixed Prosthodontics 43) Which material is best for temporary anterior crowns? Composite Polyvinyl ethyl methacrylate Bis-acrylic Polymethyl methacrylate Bis-acrylic offers strength and aesthetics for temporaries. 44 / 54 Category: Fixed Prosthodontics 44) What should a technician do if an extra white block is added to porcelain? Increase translucency Increase thickness Increase white color Reduce firing temperature Balancing the white color ensures natural aesthetics. 45 / 54 Category: Fixed Prosthodontics 45) During try-in of a PFM crown, the ceramic layer falls off the metal. What is the reason? Metal contamination Insufficient porcelain thickness Improper bonding Thermal expansion mismatch Improper bonding between ceramic and metal is the primary cause. 46 / 54 Category: Fixed Prosthodontics 46) What is a complication of improper retraction cord placement? Gingival enlargement Bleeding Gingival recession Tooth mobility Improper placement can traumatize gingiva, causing recession. 47 / 54 Category: Fixed Prosthodontics 47) What is the maximum time for pouring alginate impressions? 15 minutes 3 hours 1 hour 1 day Alginate impressions distort quickly; pouring within 15 minutes is ideal. 48 / 54 Category: Fixed Prosthodontics 48) Which plaster type is used for RPD model casts? Type II Type IV Type V Type III Type II plaster is standard for RPD models. 49 / 54 Category: Fixed Prosthodontics 49) Why might a gold crown fail to seat during try-in? Improper occlusal reduction Inadequate cement space Tight proximal contacts Thermal shrinkage Tight contacts prevent full seating; adjustment is needed. 50 / 54 Category: Fixed Prosthodontics 50) How many abutments are needed to replace teeth 24 and 25? 4 1 2 3 Two abutments (e.g., 23 and 26) typically suffice for a 2-unit FPD. 51 / 54 Category: Fixed Prosthodontics 51) After taking a PVS impression for a lower molar, a void is found on the buccal surface. What should you do? Ignore it Ask the technician to correct it Modify the impression Retake the impression Voids compromise accuracy; a retake is necessary. 52 / 54 Category: Fixed Prosthodontics 52) 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. 53 / 54 Category: Fixed Prosthodontics 53) What is hemisection? Removing a root Splitting a multi-rooted tooth Extracting half the tooth Root amputation Hemisection involves splitting a tooth while retaining salvageable roots. 54 / 54 Category: Fixed Prosthodontics 54) What is the best option for a badly broken tooth 1mm above gingiva? Crown lengthening Post and crown Extraction Orthodontic extrusion Extrusion increases clinical crown length for restoration. Your score is The average score is 42% 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
