Fixed Prosthodontics Fixed Prosthodontics SDLE MCQ | Part 1 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 1 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) A photo shows a high crown on #21 with gingival swelling and tenderness. What is the management? SRP Extraction RCT Adjust occlusion Adjusting the occlusion can relieve the pressure and resolve the swelling and tenderness. 2 / 50 Category: Fixed Prosthodontics 2) What is a disadvantage of a zirconia core? High cost Marginal discrepancy Weak bonding with porcelain Fracture Zirconia cores can sometimes lead to marginal discrepancies due to their rigid nature. 3 / 50 Category: Fixed Prosthodontics 3) What instrument is used for beveling during onlay preparation? Carbide bur Chisel Diamond instrument Gingival margin trimmer A diamond instrument is used for precise beveling during onlay preparation. 4 / 50 Category: Fixed Prosthodontics 4) A lateral incisor is fractured at the gingival level with a long root. What is the best treatment? Extraction Extrusion + osseous surgery Gingivectomy Post, core, and crown Extrusion followed by osseous surgery can save the tooth and restore function. 5 / 50 Category: Fixed Prosthodontics 5) In tooth preparation for a full ceramic crown, what principle is violated if the axial wall length is 2 mm? Preservation of periodontium Marginal integrity Preservation of tooth structure Retention and support A 2 mm axial wall length may compromise retention and support for the crown. 6 / 50 Category: Fixed Prosthodontics 6) A patient complains of food accumulation and bleeding around a PFM crown. What is the management? Proceed with endodontic treatment through PFM crown Deep scaling and root planing Suction the crown and assess restorability Combined endodontic and periodontal surgery Assessing the crown’s restorability is the first step to address the issue. 7 / 50 Category: Fixed Prosthodontics 7) A patient had a provisional crown for 2 weeks, and bleeding persists during final impression. What to do? Adjust (or remake) the provisional and take it after 2 weeks RC + Epinephrine and PVS impression RC + ferric sulfate with polyether impression Extract the tooth Adjusting or remaking the provisional crown allows the tissue to heal before taking the final impression. 8 / 50 Category: Fixed Prosthodontics 8) During try-in, there was high occlusal contact. What instrument is used to measure crown thickness? Iwanson caliper Occlusal gauge Periodontal probe Boley gauge An Iwanson caliper is used to measure crown thickness accurately. 9 / 50 Category: Fixed Prosthodontics 9) A patient with a gold onlay complains of thermal hypersensitivity. What is the cause? Fracture Sensitivity to cement Hyperocclusion Poor fit Hyperocclusion can cause thermal hypersensitivity due to excessive pressure on the tooth. 10 / 50 Category: Fixed Prosthodontics 10) What is an advantage of a modified ridge pontic? Esthetic and no surgery required Easy to clean Strong and durable Cost-effective A modified ridge pontic is esthetic and does not require surgical intervention. 11 / 50 Category: Fixed Prosthodontics 11) What is the most aesthetic pontic design? Sanitary Conical Ridge lap Ovate An ovate pontic provides the most natural appearance and is highly aesthetic. 12 / 50 Category: Fixed Prosthodontics 12) A patient cares about esthetics and wants anterior crowns. What is the healthiest and most esthetic finish line? Supra or suprabony Subgingival Supragingival Equigingival An equigingival finish line provides a balance between esthetics and periodontal health. 13 / 50 Category: Fixed Prosthodontics 13) What is the role of flux in soldering? Act as separating medium Prevent oxidation Reduce melting temp of solder Improve flow of solder Flux improves the flow of solder by removing oxides and ensuring a clean surface for bonding. 14 / 50 Category: Fixed Prosthodontics 14) A picture shows a tooth preparation with a bur in the wrong angulation. What will happen? Poor retention Fracture Undercut Overcontour preparation Wrong angulation can lead to undercuts, compromising the fit of the restoration. 15 / 50 Category: Fixed Prosthodontics 15) A patient is missing teeth #14-17, #34-37, #44, and #47. How to record occlusion? Face bow maxillary and occlusal rim in CR Arbitrarily and occlusal rim in CR Arbitrarily and occlusal rim in MIP Face bow maxillary and occlusal rim in MIP Using a face bow and occlusal rim in centric relation (CR) ensures accurate occlusion recording. 16 / 50 Category: Fixed Prosthodontics 16) What type of bur is used to cut porcelain? Diamond Carbide Steel Zirconia Diamond burs are specifically designed to cut through porcelain effectively. 17 / 50 Category: Fixed Prosthodontics 17) A patient has short anterior teeth with brown fluorosis pigmentation. What type of veneer preparation is needed? Lapped Window Butt joint Feather A lapped preparation is suitable for masking fluorosis pigmentation while preserving tooth structure. 18 / 50 Category: Fixed Prosthodontics 18) What type of fracture occurs when porcelain chips at the incisal angle? Adhesive Static Fatigue Cohesive Cohesive fractures occur within the porcelain material itself, often due to internal stresses. 19 / 50 Category: Fixed Prosthodontics 19) What is the etchant used for porcelain? Nitric acid Phosphoric acid 37% Hydrofluoric acid 9.5 to 10% Sulfuric acid Hydrofluoric acid is specifically used to etch porcelain for bonding. 20 / 50 Category: Fixed Prosthodontics 20) A patient with stable MIC wants to construct a crown. Where should the crown be placed? CR MIC Between them CO The crown should be placed in maximum intercuspation (MIC) for stability and function. 21 / 50 Category: Fixed Prosthodontics 21) Comparing a three-unit FPD replacing an upper canine with a three-unit FPD replacing a lower canine on the same side, which statement is true? Lower canine is subjected to more lateral forces Lower FPD doesn’t follow Ante’s law Upper FPD doesn’t follow Ante’s law Upper canine is subjected to more lateral forces Upper canines are subjected to more lateral forces due to their position and function in the dental arch. 22 / 50 Category: Fixed Prosthodontics 22) In a PFM crown, if the porcelain overlaps the cervical margin, what is this called? Metal margin Metalless Collarless Porcelain margin A collarless design refers to porcelain overlapping the cervical margin for better esthetics. 23 / 50 Category: Fixed Prosthodontics 23) A patient has a thin gingival phenotype on a prepared tooth. What should you do before taking an impression? Do crown lengthening Trough with laser for gingival retraction Do gingivectomy Use smaller core Gingival retraction with a laser is a conservative and effective method to manage thin gingival tissue. 24 / 50 Category: Fixed Prosthodontics 24) What problem might a dentist face when taking a PVS impression on inflamed gingiva? Retraction cord engagement Accelerate setting Material tearing Poor detail reproduction Inflamed gingiva can make retraction cord engagement difficult during impression taking. 25 / 50 Category: Fixed Prosthodontics 25) Gutta percha length is 22 mm. What is the length of the post? 22-20 mm 19-17 mm 20-18 mm 21-19 mm The post length should be 3-5 mm shorter than the gutta percha to maintain apical seal. 26 / 50 Category: Fixed Prosthodontics 26) What is the minimum preparation thickness for a metal retainer of a resin-bonded bridge? 2-0.7 mm 3-1.1 mm 4-1.5 mm 1-0.5 mm A minimum preparation thickness of 1-0.5 mm is required for adequate strength and retention. 27 / 50 Category: Fixed Prosthodontics 27) A patient with a history of myocardial infarction needs a PFM crown. What is the best approach? Defer the treatment Do it and avoid retraction cord with Epinephrine RPD Extract the tooth Avoiding retraction cord with epinephrine reduces the risk of cardiovascular complications. 28 / 50 Category: Fixed Prosthodontics 28) After tooth preparation, a putty index is applied to a wax-up cast, and a temporary is made intraorally. What is this technique called? None of the above Direct Indirect-direct Indirect Direct temporization involves creating the temporary restoration directly in the patient’s mouth. 29 / 50 Category: Fixed Prosthodontics 29) Tooth #36 is missing, and you want to fabricate a bridge from #35 to #37, but #26 is supra-erupted. Which side has interference? Centric Lateral Protrusive Retrusive Supra-eruption of #26 can cause protrusive interference during bridge fabrication. 30 / 50 Category: Fixed Prosthodontics 30) A patient has edge-to-edge occlusion. Which type of restoration is best? Full crown Composite veneer Porcelain veneer Onlay A full crown provides the necessary strength and support for edge-to-edge occlusion. 31 / 50 Category: Fixed Prosthodontics 31) A picture shows a PFM crown on an upper tooth and a natural lower tooth. What type of interference is present? Non-working Protrusive Working Centric Non-working interference occurs when the upper and lower teeth do not align properly during function. 32 / 50 Category: Fixed Prosthodontics 32) A patient has a chipped PFM crown. What is the best management? Remake it in the lab Fix it in the clinic Extract the tooth Re-cement the crown Fixing the chipped crown in the clinic is a conservative and immediate solution. 33 / 50 Category: Fixed Prosthodontics 33) What is a drawback of acrylic resin temporary crowns? Poor esthetics High cost Shrinking of the temporary Weak strength Acrylic resin temporaries tend to shrink, which can lead to marginal discrepancies. 34 / 50 Category: Fixed Prosthodontics 34) While doing a post preparation, sudden bleeding occurs. What is the first step? Apply pressure Stop the procedure Take PA Use hemostatic agent A periapical (PA) radiograph is essential to assess the cause of bleeding and guide further management. 35 / 50 Category: Fixed Prosthodontics 35) What is the width of a shoulder margin finish line? 1-1.5 mm 1.6-2 mm 2-2.5 mm 0.5-0.7 mm A shoulder margin finish line should be 1-1.5 mm wide for adequate strength and esthetics. 36 / 50 Category: Fixed Prosthodontics 36) What is considered a parafunctional habit? Erosion Abfraction Chewing Clenching Clenching is a parafunctional habit that can lead to tooth wear and TMJ issues. 37 / 50 Category: Fixed Prosthodontics 37) A young patient has eccentric interference but normal centric relation. What should be adjusted? Reduce upper incisal edge Buccal of upper Reduce lower incisal edge Buccal of lower Reducing the upper incisal edge can eliminate eccentric interference. 38 / 50 Category: Fixed Prosthodontics 38) What is an advantage of ceramic restorations? Translucent Transparent Tensile Opaque Translucency in ceramics provides a natural appearance, making them highly esthetic. 39 / 50 Category: Fixed Prosthodontics 39) A patient’s crown fell three times after cementation. What is the best management? Use different cement Extract the tooth Do endo and post & core Re-cement the crown Endodontic treatment followed by a post and core provides better retention for the crown. 40 / 50 Category: Fixed Prosthodontics 40) For a vital tooth, which material should be avoided? Bis Acrylic Poly Vin Meth Meth Poly Meth Meth Poly Eth Meth Poly Meth Meth (PMMA) can cause pulpal irritation and should be avoided for vital teeth. 41 / 50 Category: Fixed Prosthodontics 41) What is the best bridge design to replace teeth #24 and #25? Maryland bridge FPD #23, #26 three-unit FPD #26, #23 four-unit Cantilever FPD A four-unit FPD from #26 to #23 provides adequate support for replacing #24 and #25. 42 / 50 Category: Fixed Prosthodontics 42) A female patient complains of rough teeth surfaces and has mild attrition. What is the immediate management? Smooth the teeth roughness Reassure the patient Perform RCT Educate the patient and construct a night guard Smoothing the teeth roughness is the first step to address the patient’s complaint. 43 / 50 Category: Fixed Prosthodontics 43) A patient wants to extract a lateral incisor. What is the temporary FPD pontic design? Conical/bullet Modified ridge lap Sanitary Ovate An ovate pontic is the most aesthetic choice for a temporary FPD replacing a lateral incisor. 44 / 50 Category: Fixed Prosthodontics 44) What is the healthiest finish line for periodontal health? 1 mm supragingival 2 mm subgingival 0.5 mm supragingival 1.5 mm subgingival A 0.5 mm supragingival finish line is the healthiest for periodontal tissues. 45 / 50 Category: Fixed Prosthodontics 45) During try-in of a crown, there was an anterior-superior slide. How to adjust? Lingual of mand Buccal of max Mesial incline of max Distal incline of mand Adjusting the mesial incline of the maxillary crown can correct anterior-superior slide. 46 / 50 Category: Fixed Prosthodontics 46) A patient returns two weeks after a metal post-threaded crown fell out. What is the best approach? Extract the tooth Remake everything Remove the post and fit a new post Reattach the crown Reattaching the crown is the first step if the post and crown are still viable. 47 / 50 Category: Fixed Prosthodontics 47) What happens if a diamond bur is used with the wrong angulation during preparation? Over contour preparation Vertical deep finish line Fracture Undercut Wrong angulation can lead to undercuts, compromising the fit of the restoration. 48 / 50 Category: Fixed Prosthodontics 48) What is the concentration of hydrofluoric acid used for etching porcelain in case of chipping? Sulfuric acid Phosphoric acid 37% Hydrofluoric acid 5-10% Hydrofluoric acid 3-5% Hydrofluoric acid 5-10% is commonly used for etching porcelain to repair chipping. 49 / 50 Category: Fixed Prosthodontics 49) A patient is unsatisfied with the appearance of her 6 anterior PFM crowns. Why? Under contour and opaque Under contour and translucent Over contour and opaque Over contour and translucent Over contouring and opacity can make PFM crowns appear bulky and unnatural. 50 / 50 Category: Fixed Prosthodontics 50) What is a complication of a pontic ridge lap? Fracture Tissue irritation Less esthetic Poor retention Tissue irritation is common due to difficulty in cleaning under the pontic ridge lap. Your score is The average score is 76% 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
