Removable Prosthodontics R11 Removable 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% 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091 Removable Prosthodontics R11 Removable 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 / 91 Category: Removable Prosthodontics 1) A patient with complete dentures pronounces “S” as “Th.” What is the most likely cause? Incorrect vertical dimension Upper anterior teeth too lingual Upper anterior teeth too labial Thick wax in rugae area Lingually positioned teeth or thick wax can cause speech issues. 2 / 91 Category: Removable Prosthodontics 2) An impression is thick on one side and thin on the other. What is the reason? Tray distortion Uneven material mix Patient movement Incorrect tray position Improper tray positioning causes uneven material distribution. 3 / 91 Category: Removable Prosthodontics 3) What happens if a rest seat is prepared before the guide plane? Framework distortion Poor fit Increased retention No effect The sequence is critical for proper fit and function. 4 / 91 Category: Removable Prosthodontics 4) What component is placed on top of an implant in an overdenture? Abutment Locator Ball attachment Healing cap The abutment connects the implant to the overdenture. 5 / 91 Category: Removable Prosthodontics 5) What is the term for mandibular movement to the left? Working side Non-centric Non-working side Centric Non-working side refers to the opposite side of movement. 6 / 91 Category: Removable Prosthodontics 6) A patient has an edentulous maxilla and bilateral free saddle in the lower arch. Which component provides rigidity? Mesial minor connector with rest Minor connector Major connector Mesial rest with distal plate Mesial rests with distal plates stabilize bilateral saddles. 7 / 91 Category: Removable Prosthodontics 7) A patient is missing teeth #4-6 on both sides. What direct retainer is recommended? RPC clasp Circle clasp Embrasure clasp I-bar clasp Circle clasps provide retention for bilateral missing teeth. 8 / 91 Category: Removable Prosthodontics 8) What is the recommended thickness for an occlusal rest in an RPD? 2.0 mm 0.5 mm 1.5 mm 1.0 mm Occlusal rests should be 1.5 mm thick for strength. 9 / 91 Category: Removable Prosthodontics 9) A smoker presents with an ill-fitting denture and erythematous palate. What is the diagnosis? Candidiasis Denture stomatitis Traumatic ulcer Allergic reaction Denture stomatitis is common in smokers and ill-fitting dentures. 10 / 91 Category: Removable Prosthodontics 10) A patient has soreness and erythema beneath the CD. What is the etiology? Pulpitis Denture stomatitis Increased VDO Allergic reaction Denture stomatitis is caused by fungal infection or irritation. 11 / 91 Category: Removable Prosthodontics 11) What is the purpose of the fovea and vibrating line in denture fabrication? Aesthetics Retention Posterior palatal seal Stability The fovea and vibrating line help create the posterior palatal seal. 12 / 91 Category: Removable Prosthodontics 12) A patient has an 8 mm distance in the lower arch. Which major connector is suitable? Linguoplate Sublingual bar Labial bar Lingual bar Lingual bars are used for moderate space (8 mm). 13 / 91 Category: Removable Prosthodontics 13) A patient has minimal interarch space (3 mm). What is the best treatment option? Implant Orthodontic closure Removable denture Fixed prosthesis Removable dentures are suitable for limited space. 14 / 91 Category: Removable Prosthodontics 14) In which scenario is selective pressure impression technique indicated? Upper class II Partial denture Complete denture Lower class I Selective pressure is ideal for lower class I cases. 15 / 91 Category: Removable Prosthodontics 15) An edentulous patient with complete dentures is asked to blow air with the nose closed. What is being checked? Anterior vibrating line of PPS Posterior vibrating line of PPS Midline of the palate Lateral extension of PPS This test checks the anterior vibrating line for proper seal. 16 / 91 Category: Removable Prosthodontics 16) What is the function of the foil on a night guard over molars and premolars? Record centric occlusion Measure interarch space Create CBCT casts Improve retention The foil helps assess interarch space for adjustments. 17 / 91 Category: Removable Prosthodontics 17) In a Class II RPD, which element provides bracing for terminal abutments? Guide plane Occlusal rest Minor connector Lingual reciprocals Lingual reciprocals resist lateral forces. 18 / 91 Category: Removable Prosthodontics 18) Where should complete dentures be stored at night? Cold water Dry container Lukewarm water Denture cleanser Lukewarm water prevents warping and maintains hygiene. 19 / 91 Category: Removable Prosthodontics 19) What is the function of a Fox plane? Align wax rims Record centric relation Ensure facial thirds alignment Record lateral movements The Fox plane ensures proper alignment of wax rims. 20 / 91 Category: Removable Prosthodontics 20) Which clasp is recommended for Kennedy class I cases? RPI clasp Circle clasp Ring clasp RPC clasp RPI clasps are commonly used in Kennedy class I. 21 / 91 Category: Removable Prosthodontics 21) For a patient with a firm edentulous ridge and severe atrophic tongue, which impression technique is most suitable? Mucostatic Normal impression Mixed impression tech. Functional impression Normal impression is suitable for firm ridges without severe atrophy. 22 / 91 Category: Removable Prosthodontics 22) A patient complains their denture no longer fits. Which disease could be the cause? Parkinson's disease Paget's disease Diabetes Osteoporosis Paget’s disease can cause bone changes affecting denture fit. 23 / 91 Category: Removable Prosthodontics 23) What is surveying used for in RPD fabrication? Check tooth alignment Assess soft tissue Evaluate bone levels Identify undercuts and path Surveying identifies undercuts and guides placement. 24 / 91 Category: Removable Prosthodontics 24) Which impression material is contraindicated for a diabetic patient with sulfite allergy? Polysulfide Alginate Silicone Polyether Polysulfide contains sulfites, which can trigger allergies. 25 / 91 Category: Removable Prosthodontics 25) A patient needs to restore #23. What occlusion type is recommended if canine guidance is not specified? Canine guidance Unilateral occlusion Organic occlusion Bilateral occlusion Unilateral occlusion is often used for single-tooth restorations. 26 / 91 Category: Removable Prosthodontics 26) What is the easiest way to manage a broken occlusal rest? Recast the framework Replace the rest Use temporary adhesive Solder the rest Replacing the rest is the most straightforward solution. 27 / 91 Category: Removable Prosthodontics 27) Why should dentures be cleaned after each meal? Prevent cross-infection Allow denture to "breathe" Maintain aesthetics Improve retention Cleaning prevents bacterial buildup and infections. 28 / 91 Category: Removable Prosthodontics 28) A 70-year-old patient needs a crown for tooth #25 with stable maximum intercuspation but far from centric occlusion. On which position should the crown be fabricated? Neither Centric occlusion Maximum intercuspation Halfway between MI and CO The crown should align with the patient’s habitual occlusion (MI). 29 / 91 Category: Removable Prosthodontics 29) A patient extracted #21, 22, and 23. What is the Kennedy classification? Class IV Class I Class III Class II Missing anterior teeth bilaterally is Class III. 30 / 91 Category: Removable Prosthodontics 30) Missing incisors in the upper arch and #25 will be extracted. What is the Kennedy classification? Class I mod I Class IV Class II mod I Class III mod I This is a Class III modification I case. 31 / 91 Category: Removable Prosthodontics 31) A patient lost 4 anterior teeth in an accident. What is the Kennedy classification? Class II Class I Class III Class IV Missing anterior teeth without distal extension is Class IV. 32 / 91 Category: Removable Prosthodontics 32) A Kennedy class III case has a mid-buccal undercut. Which clasp is suitable? I-bar clasp Circumferential clasp Embrasure clasp Ring clasp I-bar clasps are ideal for mid-buccal undercuts. 33 / 91 Category: Removable Prosthodontics 33) How many rests and retainers are needed for a class IV RPD? 4 rests, 2 direct, 2 indirect 2 rests, 1 direct, 1 indirect 3 rests, 2 direct, 1 indirect 1 rest, 1 direct Class IV RPDs typically require 4 rests (2 direct and 2 indirect). 34 / 91 Category: Removable Prosthodontics 34) A patient with an RPD has gingival redness. What is the likely cause? Lack of rests Poor hygiene High occlusion Allergic reaction Missing rests can cause excessive pressure on the gingiva. 35 / 91 Category: Removable Prosthodontics 35) In an RPD class I case with stable contact in maximum intercuspation but discrepancy in centric relation, which position should be used? Centric relation Neither Both Maximum intercuspation Centric relation ensures proper jaw alignment for the RPD. 36 / 91 Category: Removable Prosthodontics 36) How to enhance retention in a clasp-free RPD? Use adhesives Maximize soft tissue coverage Improve tooth contact Adjust occlusion Maximum coverage improves suction and stability. 37 / 91 Category: Removable Prosthodontics 37) A 60-year-old man with new dentures complains of auricular pain and reduced masticatory efficiency. What is the likely error? Increased VDO Reduced VDO CR-CO discrepancy Unbalanced occlusion Reduced vertical dimension causes muscle strain and pain. 38 / 91 Category: Removable Prosthodontics 38) A Class I Kennedy case has spaces in the mandible. Which major connector is used? Labial bar Sublingual bar Interrupted lingual plate Lingual bar Interrupted lingual plates are used for flexibility. 39 / 91 Category: Removable Prosthodontics 39) A patient’s denture falls when smiling. What is the likely cause? Thick buccal notches Thick posterior palatal seal Incorrect occlusion Poor retention Thick buccal notches can interfere with muscle movement. 40 / 91 Category: Removable Prosthodontics 40) How can a dentist detect reduced vertical dimension in a patient? Uneven occlusion Increased freeway space Decreased freeway space Poor retention Excessive freeway space indicates reduced VDO. 41 / 91 Category: Removable Prosthodontics 41) A patient with good oral hygiene and ridge width complains of poor mastication with CDs. What is the best solution? Adjust occlusion Reline the CD Remake the CD Implant-supported CD Implant-supported CDs improve function and stability. 42 / 91 Category: Removable Prosthodontics 42) What is the recommended space for RPD connectors? 9-11 mm 7-9 mm 5-7 mm 3-5 mm Connectors require 3-5 mm of space for strength and comfort. 43 / 91 Category: Removable Prosthodontics 43) At the first follow-up, a red spot is noticed on the left ridge of a new complete denture. What is the cause? Poor hygiene Allergy High force on left teeth Unpolymerized resin Pressure spots indicate uneven force distribution. 44 / 91 Category: Removable Prosthodontics 44) How long should denture wax be immersed in warm water? 30 seconds 20 seconds 40 seconds 10 seconds 30 seconds ensures proper softening without distortion. 45 / 91 Category: Removable Prosthodontics 45) What happens if there is no contact between the minor connector and the rest? Framework fracture Poor retention Tooth mobility Rest fracture Lack of contact can lead to rest fracture due to stress concentration. 46 / 91 Category: Removable Prosthodontics 46) What is the first thing to check during complete denture delivery? Fitting Speech Occlusion Aesthetics Proper fitting ensures comfort and function. 47 / 91 Category: Removable Prosthodontics 47) A cardiac patient has difficulty swallowing with the denture. What is the likely cause? Thick denture base Allergic reaction Poor fit Medication side effects A thick denture base can interfere with tongue space. 48 / 91 Category: Removable Prosthodontics 48) Which denture cleanser is known to harm soft tissues? Hydrogen peroxide Baking soda Chlorhexidine Diluted NaOCl Diluted NaOCl can irritate soft tissues if not properly diluted. 49 / 91 Category: Removable Prosthodontics 49) What occlusion type is used for full mouth rehabilitation? Organic occlusion Canine guidance Bilateral balanced occlusion Unilateral occlusion Canine guidance provides stability during lateral movements. 50 / 91 Category: Removable Prosthodontics 50) An RPD rest fractures. What is the most likely cause? Insufficient marginal ridge prep High occlusion Improper design Poor alloy quality Inadequate preparation weakens the rest seat. 51 / 91 Category: Removable Prosthodontics 51) A pier abutment has an MOD amalgam. What should be done? Avoid using as abutment Place a surveyed crown Prepare rest on amalgam Use a rigid connector Surveyed crowns protect pier abutments from stress. 52 / 91 Category: Removable Prosthodontics 52) What causes porosity in a denture base? Contaminated monomer Rapid polymerization All of the above Insufficient pressure Multiple factors can lead to porosity. 53 / 91 Category: Removable Prosthodontics 53) Tooth #11 is missing. What is the Kennedy classification? Class I Class IV Class III Class II Missing a single anterior tooth is Class III. 54 / 91 Category: Removable Prosthodontics 54) An elderly osteoporotic patient with multiple missing teeth needs treatment. What is the best option? Removable denture Fixed prosthesis No treatment Implants Removable dentures are safer for osteoporotic patients. 55 / 91 Category: Removable Prosthodontics 55) Which clasp is recommended for a mid-buccal undercut? Aker clasp RPI clasp Ring clasp T-bar clasp RPI clasps minimize gingival irritation. 56 / 91 Category: Removable Prosthodontics 56) A patient complains of cheek biting after RPD insertion. What is the cause? Incorrect path of insertion Insufficient horizontal overlap High teeth setting Poor retention Insufficient overlap allows cheek tissue to be trapped. 57 / 91 Category: Removable Prosthodontics 57) A patient needs complete dentures with the lower ridge buccal to the upper ridge. How should the teeth be set? Bilateral crossbite Class I Unilateral crossbite Class II Bilateral crossbite compensates for the ridge discrepancy. 58 / 91 Category: Removable Prosthodontics 58) A patient presents 2 days after #21 extraction with a non-healing socket and needs a partial acrylic denture. What type is considered? Temporary Transitional Immediate Permanent Immediate dentures are placed right after extraction. 59 / 91 Category: Removable Prosthodontics 59) An old man presents with flabby tissue. Which impression technique is recommended? Functional impression Selective pressure Dynamic impression Mucostatic Mucostatic minimizes pressure on flabby tissue. 60 / 91 Category: Removable Prosthodontics 60) A well-controlled diabetic patient has excessive tooth mobility. What is the best treatment? Orthodontics Fixed prosthesis Implant RPD RPDs are suitable for patients with mobility issues. 61 / 91 Category: Removable Prosthodontics 61) An RPD abutment is tender to percussion. What is the cause? Exposed dentine under rest Cracked tooth Hyperocclusion Periodontal disease High occlusion can cause tenderness. 62 / 91 Category: Removable Prosthodontics 62) A 73-year-old woman has remaining teeth #14, 13, 24, 37, 35, 44, and 46. What is the Kennedy-Applegate classification for the maxilla? Mandible: Class II modification II Mandible: Class III modification I Maxilla: Class I modification II Maxilla: Class I modification I The maxilla is Class I modification I due to bilateral edentulous areas. 63 / 91 Category: Removable Prosthodontics 63) An abutment has no buccal undercut and minimal cervical undercut. Which clasp is suitable? RPA clasp T-bar clasp RPI clasp Ring clasp RPI clasps are versatile for minimal undercuts. 64 / 91 Category: Removable Prosthodontics 64) A patient has spaces between anterior teeth. Which major connector is best? Labial bar Lingual bar Sublingual bar Linguoplate Linguoplates stabilize spaced anterior teeth. 65 / 91 Category: Removable Prosthodontics 65) An upper CD fractures after 9 years of use. What is the likely cause? Posterior teeth too buccal Thin palate Poor design Material defect Buccal tooth placement creates leverage leading to fracture. 66 / 91 Category: Removable Prosthodontics 66) An upper arch has no distal teeth, only anterior teeth and second premolars. What is the Kennedy classification? Class IV Class II mod 1 Class I mod 2 Class III mod 1 This is a Class I modification 2 case. 67 / 91 Category: Removable Prosthodontics 67) A patient with complete dentures has enlarged tissue at the denture border. What is the cause? Candida infection Allergic reaction Long buccal flange Fungal infection Overextended flanges can cause tissue irritation. 68 / 91 Category: Removable Prosthodontics 68) A patient lost both centrals and upper left 5 needs extraction, with all third molars impacted. What is the Kennedy classification? Class IV Class II mod 1 Class III mod 1 Class I mod 1 This is a Class III modification 1 case. 69 / 91 Category: Removable Prosthodontics 69) A patient is missing upper right 4-7 and upper left 4-6. What is the Kennedy classification? Class IV mod I Class II mod II Class III mod II Class I mod II Bilateral edentulous areas with remaining teeth are Class II mod II. 70 / 91 Category: Removable Prosthodontics 70) What is the cross-sectional shape of a wrought wire clasp? Oval Flat Round Square Wrought wire clasps are round for flexibility. 71 / 91 Category: Removable Prosthodontics 71) What clasp is used for a mid-buccal undercut on upper tooth #5? T-bar clasp Ring clasp RPI clasp Aker clasp RPI clasps engage mid-buccal undercuts without gingival interference. 72 / 91 Category: Removable Prosthodontics 72) What clasp is used for a mesiolingual undercut? Aker clasp RPI clasp Ring clasp T-bar clasp Ring clasps engage mesiolingual undercuts effectively. 73 / 91 Category: Removable Prosthodontics 73) What is Bennett movement? Protrusive movement Lateral working Lateral shifting Lateral movement Bennett movement is the lateral shift of the mandible. 74 / 91 Category: Removable Prosthodontics 74) A patient has anterior and tuberosity undercuts. How should this be managed for complete dentures? Both Neither Remove anterior undercut Relieve posterior undercut Both adjustments are needed for proper denture fit. 75 / 91 Category: Removable Prosthodontics 75) A patient lost all incisors and will extract #25. How many rests and connectors are needed? 4 rests and 3 connectors 6 rests and 5 connectors 5 rests and 4 connectors 3 rests and 2 connectors The design requires 6 rests and 5 connectors for stability. 76 / 91 Category: Removable Prosthodontics 76) How to manage a fractured retentive arm? Recast the clasp Use adhesive Add wrought wire Replace the denture Adding wrought wire restores retention. 77 / 91 Category: Removable Prosthodontics 77) A patient needs to replace missing teeth #4 and #5. What type of clasp is recommended? I-bar clasp Aker clasp Ring clasp Circlet clasp Aker clasps are commonly used for premolars. 78 / 91 Category: Removable Prosthodontics 78) What occlusion type is used for Kennedy class III cases? Canine guidance Organic occlusion Bilateral balanced occlusion Unilateral balanced occlusion Canine guidance is ideal for Kennedy class III cases. 79 / 91 Category: Removable Prosthodontics 79) A mesially tilted tooth #7 requires a clasp. Which type is suitable? Aker clasp Ring clasp RPI clasp T-bar clasp Ring clasps are ideal for tilted molars. 80 / 91 Category: Removable Prosthodontics 80) What type of indirect clasp is used in Kennedy class III cases? Embrasure clasp Aker clasp Ring clasp I-bar clasp Embrasure clasps are commonly used in Kennedy class III cases. 81 / 91 Category: Removable Prosthodontics 81) What is the primary function of a surveyor in RPD design? Determine path of insertion Measure undercuts Evaluate aesthetics Check occlusion Surveyors help determine the optimal path of insertion. 82 / 91 Category: Removable Prosthodontics 82) A tooth with MOD amalgam is used as an abutment. What is the best approach? Use a temporary restoration Prepare rest on amalgam Avoid using the tooth Place a surveyed crown Surveyed crowns provide long-term stability. 83 / 91 Category: Removable Prosthodontics 83) What is the term for equal force from the tongue and cheeks on a denture? Neutral zone Support zone Stability zone Retention zone The neutral zone balances forces for stability. 84 / 91 Category: Removable Prosthodontics 84) A patient has a lingual sulcus depth of 9 mm. Which major connector is recommended? Labial bar Lingual bar Sublingual bar Linguoplate Lingual bars are ideal for depths ≥7 mm. 85 / 91 Category: Removable Prosthodontics 85) An RPD becomes ill-fitting. What should be done? Adjustment Replacement Relining Rebasing Relining improves fit without replacing the framework. 86 / 91 Category: Removable Prosthodontics 86) During CD delivery, a wax knife can be inserted from one side to the other in rest position. What should be done? Reline the denture Rebase the maxilla Adjust occlusion Redo the mandible This indicates improper mandibular denture fit. 87 / 91 Category: Removable Prosthodontics 87) What occlusion type is recommended for complete dentures? Unilateral occlusion Canine guidance Organic occlusion Bilateral balanced occlusion Bilateral balanced occlusion ensures stability during function. 88 / 91 Category: Removable Prosthodontics 88) A patient has bilaterally free saddle in the lower arch and an edentulous maxilla. What occlusion is recommended? Bilateral balanced occlusion Unilateral occlusion Organic occlusion Canine guidance Bilateral balanced occlusion is ideal for edentulous cases. 89 / 91 Category: Removable Prosthodontics 89) A 63-year-old patient is uncomfortable with his denture. What adjustment is recommended? Linear occlusion Lingualized occlusion Monoplane occlusion Balanced occlusion Lingualized occlusion improves comfort for patients with ridge resorption. 90 / 91 Category: Removable Prosthodontics 90) A mandibular RPD class II is missing #45-48 and #35-36. What is the ideal indirect retainer? Proximal plates Canine rests Occlusal rests Lingual plate Canine rests provide effective indirect retention. 91 / 91 Category: Removable Prosthodontics 91) A tooth has shallow buccal contours. Which clasp is suitable? RPA clasp RPI clasp T-bar clasp Ring clasp RPA clasps work well with shallow contours. 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