Endodontics Endodontics 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 Endodontics Endodontics 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: Endodontics 1) What is the best method to refine access for a C-shaped canal? #2 round bur #1 round bur Ultrasonic 169 L bur Ultrasonic tips are precise for refining complex canal anatomy. 2 / 50 Category: Endodontics 2) A tooth with condensing osteitis shows a sudden disappearance of the canal. What is the cause? Ledge Perforation Calcification Bifurcation Condensing osteitis can lead to canal bifurcation. 3 / 50 Category: Endodontics 3) Which sealer can affect the tooth if left for a long time? Calcium hydroxide Glass ionomer Zinc oxide eugenol Resin-based sealer Zinc oxide eugenol can cause discoloration and irritation over time. 4 / 50 Category: Endodontics 4) A patient has extruded gutta-percha with no symptoms. What is the management? Follow-up Extraction Surgical RCT RCT If asymptomatic, no intervention is needed. 5 / 50 Category: Endodontics 5) A patient still feels pain after taking ibuprofen. What is the next step? Prescribe opioids Follow-up Increase ibuprofen dose Ibuprofen + Acetaminophen Combining NSAIDs with acetaminophen enhances pain relief. 6 / 50 Category: Endodontics 6) Which sealer is resorbable? Glass ionomer Resin-based sealer ZOE Calcium hydroxide Calcium hydroxide sealers are resorbable. 7 / 50 Category: Endodontics 7) Which instrument has a negative rake angle? H-file None K-file Rotary file K-files have a negative rake angle for efficient cutting. 8 / 50 Category: Endodontics 8) A patient presents with pulp exposure due to trauma 3 hours ago. What is the best treatment? Indirect pulp cap RCT Pulpotomy Direct pulp cap Direct pulp capping is indicated for small, recent exposures in vital teeth. 9 / 50 Category: Endodontics 9) During treatment of tooth #16, a perforation occurs. How is it managed? MTA Follow-up Extraction Re-RCT MTA is ideal for sealing perforations. 10 / 50 Category: Endodontics 10) A patient with generalized bone loss and pain in tooth #26 has no response to cold or EPT. What is the diagnosis? True combined Primary perio secondary endo Primary endo secondary perio Primary endo Pain in a non-vital tooth with bone loss suggests periodontal involvement. 11 / 50 Category: Endodontics 11) What type of splint is used for intruded teeth? Semi-rigid splint Flexible splint No splint Rigid splint Flexible splints allow for physiological movement. 12 / 50 Category: Endodontics 12) During Class I cavity preparation, a perforation occurs. Bleeding stops. What is the next step? CaOH + RMGIC DPC + GIC + Composite ZOE + Amalgam Follow-up Immediate sealing with DPC and restoration is recommended. 13 / 50 Category: Endodontics 13) A mid-root circular radiolucency is observed in an asymptomatic tooth. What is the next step? Perform RCT Take CBCT Follow-up Investigate pulp status RCT is indicated for internal resorption. 14 / 50 Category: Endodontics 14) What is the immediate clinical management for an intracanal medicament accident? Antibiotics Follow-up Surgical intervention Re-RCT Monitoring is often sufficient if no symptoms are present. 15 / 50 Category: Endodontics 15) Which avulsion scenario has the poorest prognosis? Avulsion <60 min closed apex Avulsion >60 min open apex Avulsion <60 min open apex Avulsion >60 min closed apex closed apex teeth have a poorer prognosis 16 / 50 Category: Endodontics 16) What is the shape of the access cavity for upper premolars (teeth #4 and #5)? Oval Rectangular Triangular Round Oval access allows for proper instrumentation of premolar canals. 17 / 50 Category: Endodontics 17) A necrotic immature central incisor with a history of trauma requires which treatment? Pulpotomy RCT with MTA Extraction RCT MTA promotes apexification in immature teeth. 18 / 50 Category: Endodontics 18) A patient has broken instruments in tooth #26 with no symptoms. What is the management? Apical surgery Root amputation Try to bypass and re-RCT Extraction If asymptomatic, attempt to bypass the broken instrument. 19 / 50 Category: Endodontics 19) A patient with tooth #36 (4 roots) is in pain. What is the best treatment? Continue treatment RCT Extraction Pulpotomy and referral Complex cases should be referred to a specialist. 20 / 50 Category: Endodontics 20) Sharp pain in a tooth is primarily transmitted by which nerve fiber? A-delta C B A A-delta fibers are responsible for sharp, localized pain. 21 / 50 Category: Endodontics 21) Which tooth has a constant number of canals? Maxillary central incisor Mandibular canine Maxillary canine Mandibular central incisor Maxillary central incisors typically have one canal. 22 / 50 Category: Endodontics 22) Which tooth most commonly shows 8 canal configurations? Maxillary 2nd premolar Maxillary 1st premolar Mandibular 1st molar Mandibular 2nd molar Maxillary 2nd premolars often have complex canal anatomy. 23 / 50 Category: Endodontics 23) A patient reports pain with hot food/drinks that relieves with cold. What is the endo diagnosis? Normal pulp Necrotic pulp Asymptomatic irreversible pulpitis Symptomatic irreversible pulpitis Hot sensitivity indicates irreversible pulpitis. 24 / 50 Category: Endodontics 24) A 14-year-old patient has an avulsed tooth for 4 hours. What is the treatment? RCT immediately Follow-up RCT after one week No RCT Immediate RCT is recommended for avulsed teeth with closed apices. 25 / 50 Category: Endodontics 25) A file breaks in the middle of the canal. What is the prognosis? Fair Good None Poor If the file can be removed, the prognosis is fair. 26 / 50 Category: Endodontics 26) A vital tooth with periapical radiolucency is likely due to: Endo origin Trauma Perio origin True combined lesion Periapical radiolucency in vital teeth is often periodontal in origin. 27 / 50 Category: Endodontics 27) A patient has asymptomatic internal resorption in the mid-root. What is the management? Follow-up Extraction RCT Occlusal reduction Internal resorption requires RCT to prevent further damage. 28 / 50 Category: Endodontics 28) What is the ISO diameter of a K-file? 0.1 0.2 2 0.02 K-files have a standardized taper of 0.02. 29 / 50 Category: Endodontics 29) A patient has a deep pocket, abscess, or cyst. What is the first step? Curettage Follow-up Endo Surgical intervention Surgical intervention is often required for deep lesions. 30 / 50 Category: Endodontics 30) Which lubricant removes the smear layer? EDTA Chlorhexidine NaOCl Saline EDTA effectively removes the smear layer. 31 / 50 Category: Endodontics 31) A tooth with calcification due to trauma 20 years ago has a poor prognosis. What is the treatment? Bleaching Follow-up RCT Extraction Calcified canals often require RCT for proper treatment. 32 / 50 Category: Endodontics 32) Which system is known as a reciprocal system in endodontics? K-file Endo-eze (WaveOne) ProTaper H-file Reciprocal systems use a back-and-forth motion for canal preparation. 33 / 50 Category: Endodontics 33) During instrumentation, a calcified canal suddenly disappears. What is the cause? Perforation Calcification Bifurcation Ledge Bifurcation can cause the canal to split and disappear. 34 / 50 Category: Endodontics 34) A PA radiograph shows large bone resorption adjacent to tooth #32, which is vital. What is the likely cause? Perio-Endo Perio Endo Endo-Perio Bone resorption in vital teeth is often periodontal in origin. 35 / 50 Category: Endodontics 35) After instrumentation, the ML canal cannot be negotiated. What is the likely cause? Calcification Ledge Perforation Separated file A ledge is a common obstruction caused by improper instrumentation. 36 / 50 Category: Endodontics 36) A fracture involving enamel and dentin without pulp exposure is called: Complicated fracture Root fracture Uncomplicated fracture Crown infarction Uncomplicated fractures do not involve the pulp. 37 / 50 Category: Endodontics 37) Where is the second canal typically located in a lower central incisor? Labial Mesial Distal Lingual The second canal is often found on the lingual side. 38 / 50 Category: Endodontics 38) A radiolucent area is observed on the lateral aspect of tooth #45. What is the likely cause? Lateral canals Root fracture Periapical abscess External resorption Lateral canals can appear as radiolucent areas on X-rays. 39 / 50 Category: Endodontics 39) A molar with 2 posts and no RCT has no symptoms. What is the management? Assure the patient Extraction Re-RCT Follow-up If asymptomatic, no intervention is needed. 40 / 50 Category: Endodontics 40) What is the standard size for gutta-percha tracing? 30 20 35 25 Size 25 is commonly used for gutta-percha tracing. 41 / 50 Category: Endodontics 41) A 7-year-old child has a small pulp exposure in a central incisor. What is the best treatment? Cervical pulpotomy Pulpectomy DPC with MTA Pulpotomy Cervical pulpotomy preserves pulp vitality in young teeth. 42 / 50 Category: Endodontics 42) What is the best analgesic for post-endodontic pain? Acetaminophen NSAID None Opioids NSAIDs are effective for managing post-endodontic pain. 43 / 50 Category: Endodontics 43) Why is the smear layer removed before obturation? To remove sealer easily To allow sealer penetration To increase antimicrobial activity None Removing the smear layer ensures proper sealer adhesion. 44 / 50 Category: Endodontics 44) During access, a pulp stone is observed. What is the next step? Extraction Referral to endodontist Continue treatment Remove the pulp stone Pulp stones may complicate treatment, requiring specialist intervention. 45 / 50 Category: Endodontics 45) A short RCT is observed with apical calcification. The patient needs a survey crown. What is the next step? Follow-up Extraction Do the crown Re-RCT first If the RCT is stable and asymptomatic, proceed with the crown. 46 / 50 Category: Endodontics 46) What is the cross-sectional shape of an R-file? Triangle Rectangular Round Square R-files have a triangular cross-section. 47 / 50 Category: Endodontics 47) A crown fracture involving enamel and dentin without pulp exposure is classified as: Root fracture Uncomplicated crown fracture Crown infarction Complicated crown fracture Uncomplicated fractures do not involve the pulp. 48 / 50 Category: Endodontics 48) A young patient with trauma to upper central incisors causing palatal displacement and mid-root fracture. What is the treatment? Extraction Follow-up Splint with flexible for 4 weeks RCT Splinting stabilizes the tooth and promotes healing in root fractures. 49 / 50 Category: Endodontics 49) Which instrument is used to check canal flaring after preparation? Master cone gutta percha Master file Patency file Spreader Spreaders are used to check canal flaring. 50 / 50 Category: Endodontics 50) A tooth was avulsed for 30 minutes and kept in milk. What type of splint is recommended? Semi-rigid splint Functional 2-week splint Rigid splint No splint Functional splints allow limited movement for healing. Your score is The average score is 64% 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
