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