Endodontics Endodontics SDLE MCQ | Part 4 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 0% 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 Endodontics Endodontics SDLE MCQ | Part 4 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: Endodontics 1) A patient with severe pain, isolated deep pocket, and bone loss distal to #47. What is the management? RCT Apical surgery Extraction GTR Extraction is often the best option for severe pain and bone loss. 2 / 50 Category: Endodontics 2) A file broke in the apical part of the mesial root during endo. Bypassing and retrieval failed. What is the next step? Apical surgery Obturate to the level of the broken file Retreatment Extraction Obturating to the level of the broken file is a common approach. 3 / 50 Category: Endodontics 3) A 7-year-old with 5 mm of intrusion. What is the management? Wait 3 weeks Extract Surgical repositioning Ortho repositioning Waiting 3 weeks allows for spontaneous repositioning. 4 / 50 Category: Endodontics 4) A canal is 21 mm, but after cleaning and shaping, the file reaches only 19 mm. What happened? Ledge Blockage Fracture Perforation A ledge can prevent the file from reaching the full length. 5 / 50 Category: Endodontics 5) A patient with a suspected VRF and an isolated pocket. What is the best initial investigation? PA Bitewing Occlusal radiograph CBCT CBCT provides the most detailed imaging for VRF. 6 / 50 Category: Endodontics 6) Excessive bleeding during cleaning and shaping with a moved stopper indicates what? Overfilling Sodium hypochlorite accident Fracture Perforation Excessive bleeding and a moved stopper suggest perforation. 7 / 50 Category: Endodontics 7) How long should an avulsed tooth be splinted if extraoral time is 45 minutes? 2-3 weeks functional splint 4 weeks 8 weeks rigid splint 6 weeks A functional splint for 2-3 weeks is recommended. 8 / 50 Category: Endodontics 8) What percentage of gutta-percha is in a GP cone? 50% 30% 20% 40% GP cones typically contain 20% gutta-percha. 9 / 50 Category: Endodontics 9) A patient has pain with cold drinks. What is the first diagnostic step? X-ray Cold test Percussion EPT A cold test helps diagnose pulp vitality. 10 / 50 Category: Endodontics 10) What is the diameter of a Gates Glidden size 2? 0.5 mm 0.7 mm 0.6 mm 0.8 mm Gates Glidden size 2 has a diameter of 0.7 mm. 11 / 50 Category: Endodontics 11) What is a characteristic of external resorption? Apical radiolucency Radiolucency moves with angle change Fixed radiolucency Coronal radiolucency External resorption shows radiolucency that moves with angle change. 12 / 50 Category: Endodontics 12) What is a characteristic of vertical root fracture (VRF)? Apical radiolucency Deep wide isolated pocket Deep narrow isolated pocket Generalized bone loss VRF often presents with a deep narrow isolated pocket. 13 / 50 Category: Endodontics 13) A 14-year-old with a crown fracture involving enamel, dentin, and pinpoint pulp exposure. What is the treatment? Cvek pulpotomy RCT DPC Indirect pulp capping Cvek pulpotomy is the best option for young patients with vital pulp. 14 / 50 Category: Endodontics 14) How should a supracrestal perforation be managed? Leave open Seal with MTA Extract Seal with GIC MTA is the best material for sealing supracrestal perforations. 15 / 50 Category: Endodontics 15) A patient with a gingival abscess took antibiotics. What is the likely pulp condition? Obliterated pulp Irreversible pulpitis Hyperemic pulp Reversible pulpitis Antibiotics may not resolve irreversible pulpitis. 16 / 50 Category: Endodontics 16) What is the typical working length of a K-file? 25 mm 16 mm 30 mm 20 mm The standard working length for a K-file is often 16 mm. 17 / 50 Category: Endodontics 17) A patient with a sinus tract and pain on tooth 26 after percussion. What is the next step? Extraction EPT PA Sinus tract tracing Sinus tract tracing helps identify the source of infection. 18 / 50 Category: Endodontics 18) How many roots are expected in tooth #17? 1 2 3 4 Tooth #17 typically has 3 roots. 19 / 50 Category: Endodontics 19) A patient has an isolated pocket, negative cold test, extensive bone loss, and minimal restoration. What is the likely diagnosis? True combined lesion Endo-perio lesion Perio-endo lesion Periodontitis Perio-endo lesions present with isolated pockets and bone loss. 20 / 50 Category: Endodontics 20) Why might gutta-percha extrude during obturation? Short root No control on material Long root Type of obturation technique Lack of control during obturation can cause extrusion. 21 / 50 Category: Endodontics 21) What characterizes subluxation? Displacement Fracture No mobility, no displacement Increased mobility, no displacement Subluxation involves increased mobility without displacement. 22 / 50 Category: Endodontics 22) A patient with lingering pain for 30 minutes, no sensitivity to percussion, and normal apical tissue. What is the treatment? Pulpotomy Extraction RCT Pulpectomy Pulpotomy is the best option for lingering pain with vital pulp. 23 / 50 Category: Endodontics 23) What is the color of an H-file size 60? Green Red Blue Yellow H-file size 60 is typically blue. 24 / 50 Category: Endodontics 24) What is the likely cause of a separated instrument in the middle of the canal? Poor technique Improper access Overuse Manufacturer error Improper access can lead to instrument separation. 25 / 50 Category: Endodontics 25) A 14-year-old with a complicated crown fracture involving 2/3 of the crown. What is the treatment? RCT Pulpotomy Extraction DPC Pulpotomy is the best option for young patients with vital pulp. 26 / 50 Category: Endodontics 26) What is the prognosis of a tooth with a supracrestal perforation? Fair Hopeless Good Poor Supracrestal perforations often have a poor prognosis due to bone loss. 27 / 50 Category: Endodontics 27) A tooth with trauma 20 years ago shows no symptoms but does not respond to cold tests and has a calcified canal. What is the prognosis of non-surgical endo? Poor Fair Hopeless Good Calcified canals complicate treatment, leading to a fair prognosis. 28 / 50 Category: Endodontics 28) What is the temperature of Endo-Ice (1,1,1,2-tetrafluoroethane)? -30°C -10°C -26.2°C -15°C Endo-Ice has a temperature of -26.2°C. 29 / 50 Category: Endodontics 29) What percentage of accessory canals are found in the apical third? 20% 11% 74% 15% 74% of accessory canals are located in the apical third. 30 / 50 Category: Endodontics 30) Which dental material requires careful handling due to its caustic nature? Sodium hypochlorite Formocresol Calcium hydroxide Ferric sulfate Formocresol is highly caustic and requires careful handling. 31 / 50 Category: Endodontics 31) What type of injury involves tooth displacement buccally, lingually, mesially, or distally? Lateral luxation Extrusion Subluxation Intrusion Lateral luxation involves displacement in various directions. 32 / 50 Category: Endodontics 32) What is the likely cause of a strip perforation on X-ray? Resorption Caries Over-instrumentation Trauma Over-instrumentation during endo can cause strip perforations. 33 / 50 Category: Endodontics 33) A patient with a poorly obturated tooth #21 and radiolucency. What is the management? Extraction Cyst enucleation Re-RCT Apical surgery Re-RCT is the first step in managing poor obturation. 34 / 50 Category: Endodontics 34) How should a furcal perforation be managed? GIC Immediately seal with MTA Extract Leave open MTA is the best material for sealing furcal perforations. 35 / 50 Category: Endodontics 35) What gives MTA its radiopacity? Zinc oxide Bismuth oxide Silica Calcium oxide Bismuth oxide is added to MTA for radiopacity. 36 / 50 Category: Endodontics 36) What is the main disadvantage of silver points? Difficult removal Inadequate seal Toxicity Corrosion Silver points often fail to provide an adequate seal. 37 / 50 Category: Endodontics 37) A child with a complicated crown fracture and pinpoint pulp exposure after a motorcycle accident. What is the treatment? RCT Pulectomy Partial Pulpotomy with MTA Dental pulp treatment with MTA Partial pulpotomy with MTA is the best option for vital pulp. 38 / 50 Category: Endodontics 38) How long should an avulsed tooth with an open apex be splinted after 2 hours? 2 weeks functional splint 6 weeks 4-6 weeks functional splint 8 weeks rigid splint A functional splint for 4-6 weeks is recommended for open apex teeth. 39 / 50 Category: Endodontics 39) Which instrument is used to detect crown-root fractures? D16 explorer Periodontal probe Tooth sloth D1 explorer A tooth sloth is used to detect crown-root fractures. 40 / 50 Category: Endodontics 40) A 4-year-old with intruded primary incisors touching the permanents. What is the management? Monitor Reposition and splint Extract both teeth Allow for spontaneous eruption Extraction is recommended to prevent damage to permanent teeth. 41 / 50 Category: Endodontics 41) A pink color on the crown indicates what? Necrosis External resorption Internal resorption Pulpitis Pink discoloration is a sign of internal resorption. 42 / 50 Category: Endodontics 42) A patient presents with pain in tooth 37, which has difficult anatomy on X-ray. What is the best management? RCT Extraction Pulpotomy NSAID NSAIDs are the first step in managing pain before definitive treatment. 43 / 50 Category: Endodontics 43) What is the pH of sodium hypochlorite? 7 5 9 11 Sodium hypochlorite has a high pH of around 11. 44 / 50 Category: Endodontics 44) What is the primary cause of internal resorption? Trauma Infection Dento alveolar abscess Inflammation in coronal pulp Inflammation in the coronal pulp is the main cause of internal resorption. 45 / 50 Category: Endodontics 45) Which instrument is used for removing pulp tissue? Barber broach Lentulospiral Gates Glidden Pesso reamer Barber broach is designed to remove pulp tissue. 46 / 50 Category: Endodontics 46) What is a sign of incomplete pulp removal during pulpotomy? Swelling Uncontrolled hemorrhage Pain Discoloration Uncontrolled hemorrhage indicates incomplete pulp removal. 47 / 50 Category: Endodontics 47) How many canals are expected in tooth #34? 3 1 4 2 Tooth #34 usually has 2 canals. 48 / 50 Category: Endodontics 48) What type of X-ray is best for an avulsed tooth? OPG Occlusal Bitewing CBCT and 2 PA CBCT and periapical X-rays provide detailed information. 49 / 50 Category: Endodontics 49) What is the best treatment for pinpoint pulp exposure? MTA GIC CaOH liner Resin MTA is preferred for pinpoint pulp exposure due to its sealing properties. 50 / 50 Category: Endodontics 50) A 4-year-old with intrusion trauma. What is the likely consequence to the permanent tooth? Root resorption Crown tipped palatally Devitalization of permanent No effect Intrusion can cause the permanent crown to tip palatally. Your score is The average score is 81% Facebook Twitter 0% Restart quiz Please rate this exam and leave a comment with any notes or suggestions. 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