Orthodontics Orthodontics SDLE MCQ | Part 2 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 0% 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 Orthodontics Orthodontics SDLE MCQ | Part 2 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: Orthodontics 1) A 9-year-old patient has crowding, impacted canines, maxillary deficiency, and mandibular prognathism. What is the most concerning issue? Crowding Mandibular prognathism Canine impaction Maxillary deficiency Maxillary deficiency is the most critical issue to address early. 2 / 50 Category: Orthodontics 2) A patient with fixed appliances has severe laceration and ulceration due to an extended wire. What is the best management? Apply gauze Clip the wire Apply wax Reassure the patient Clipping the wire is the most effective way to relieve irritation. 3 / 50 Category: Orthodontics 3) What is the function of the Frankel III appliance? Expand maxilla Intrude incisors Retract mandible Enhance maxillary position The Frankel III appliance enhances maxillary position. 4 / 50 Category: Orthodontics 4) A 19-year-old patient has maxillary constriction. What is the best treatment? Orthodontic camouflage No treatment SARPE Rapid expansion Surgically assisted rapid palatal expansion (SARPE) is the best treatment for maxillary constriction in adults. 5 / 50 Category: Orthodontics 5) An 8-year-old patient has a retrognathic mandible. What is the best treatment? Surgery No treatment Functional appliance Headgear Functional appliances are effective for growing patients with retrognathic mandibles. 6 / 50 Category: Orthodontics 6) What is the primary characteristic of maxillary hypoplasia? Crossbite Overdeveloped mandible Underdeveloped maxilla Open bite Maxillary hypoplasia is characterized by an underdeveloped maxilla. 7 / 50 Category: Orthodontics 7) What is the main difference between orthodontic treatment in adults and children? Children require more frequent visits No difference Adults need larger brackets Slower tooth movement in adults Tooth movement is slower in adults due to reduced bone remodeling. 8 / 50 Category: Orthodontics 8) A patient has ANB = 6, SNA = 80, SNB = 74, and upper incisors to SN = 110. What is the classification? Class III Class II division 1 Class I Class II division 2 These measurements indicate Class II division 1 malocclusion. 9 / 50 Category: Orthodontics 9) What is the most common cause of impacted canines? Bone around the crown Trauma Genetic factors Thick tissue Bone around the crown is the most common cause of impaction. 10 / 50 Category: Orthodontics 10) An orthodontic patient has a bulging band causing ulceration. What is the best management? Wait for the next appointment Remove the appliance Cut the band Apply wax Applying wax is the best immediate solution to relieve irritation. 11 / 50 Category: Orthodontics 11) A patient has multiple ulcers due to orthodontic wires. What is the best management? Cut the wire Prescribe antibiotics Apply wax Remove the appliance Applying wax is the best immediate solution to relieve irritation. 12 / 50 Category: Orthodontics 12) A 13-year-old patient has mouth breathing. What is the best treatment? Distalization Headgear Expansion Extraction Expansion is often needed to address mouth breathing and associated dental issues. 13 / 50 Category: Orthodontics 13) At what age should the first orthodontic screening occur? 12 years 15 years 10 years 7 years The American Association of Orthodontists recommends screening by age 7. 14 / 50 Category: Orthodontics 14) What is the most common type of malocclusion? Class II Class I aligned teeth Class I crowding Class III Class I crowding is the most common type of malocclusion. 15 / 50 Category: Orthodontics 15) When should frenectomy be performed after space closure? Immediately After 1 year After 6 months After 2 years Frenectomy is typically performed immediately after space closure. 16 / 50 Category: Orthodontics 16) Which plane is used in Wits appraisal? Palatal plane Mandibular plane Functional occlusal plane Frankfort plane The functional occlusal plane is used in Wits appraisal. 17 / 50 Category: Orthodontics 17) A patient with severe periodontitis needs orthodontic treatment. Where should the force be applied? More coronally No force should be applied At the center of the tooth More apically Forces should be applied more apically to avoid further damage to compromised teeth. 18 / 50 Category: Orthodontics 18) What is assessed in a lateral cephalometric analysis? Dental alignment Vertical relationship Anteroposterior skeletal relationship Transverse relationship Lateral cephalometric analysis primarily assesses the anteroposterior relationship. 19 / 50 Category: Orthodontics 19) A patient has cephalometric findings showing decreased SNB and increased incisal angle. What is the diagnosis? Class II division 1 Class I Class III Class II division 2 Decreased SNB and increased incisal angle indicate Class II division 2. 20 / 50 Category: Orthodontics 20) A growing patient has Class III malocclusion. What is the best appliance? Facemask Twin block Quad helix Headgear A facemask is effective for correcting Class III malocclusion in growing patients. 21 / 50 Category: Orthodontics 21) A 16-year-old patient has Class II malocclusion, excessive lower facial height, incompetent lips, and excessive gingival display. What is the most likely diagnosis? Crouzon syndrome Mouth breathing Genetic factors Normal growth Mouth breathing is often associated with these characteristics. 22 / 50 Category: Orthodontics 22) If 75 g of force is used for tipping a central incisor, what force is used for intrusion? 125 g 25 g 75 g 100 g Intrusion requires lighter forces, typically around 25 g. 23 / 50 Category: Orthodontics 23) Which teeth are most affected by bone resorption during orthodontic treatment? Molars Lower incisors Upper incisors Canines Upper incisors are most susceptible to bone resorption during orthodontic treatment. 24 / 50 Category: Orthodontics 24) A patient with Class II malocclusion and a good facial profile needs correction of deep bite and overjet. What is the best treatment? Functional appliance No treatment Extract upper first premolars Orthognathic surgery Extracting upper first premolars is a common treatment for deep bite and overjet. 25 / 50 Category: Orthodontics 25) A pediatric patient has an anterior open bite, posterior crossbite, and a thumb-sucking habit. What is the best appliance? Quad helix Hawley retainer Palatal crib Facemask A palatal crib is effective for addressing thumb-sucking and associated dental issues. 26 / 50 Category: Orthodontics 26) What is the primary characteristic of vertical maxillary excess? Excessive gingival display Deep bite Crossbite Open bite Excessive gingival display is a hallmark of vertical maxillary excess. 27 / 50 Category: Orthodontics 27) A patient has a deep bite with 100% overbite. What is the best management? Upper posterior extrusion Lower posterior extrusion Lower anterior intrusion Upper anterior intrusion Lower anterior intrusion is the most effective way to correct deep bite. 28 / 50 Category: Orthodontics 28) Which type of occlusion is a contraindication for an anterior bite plane? Crossbite Normal occlusion Open bite Deep bite Anterior bite planes are contraindicated in patients with open bites. 29 / 50 Category: Orthodontics 29) A patient with Class III malocclusion needs extraction. What is the best extraction pattern? Extract lower first premolar No extraction Extract upper second premolar and lower first premolar Extract upper first premolar and lower first premolar Extracting upper second premolar and lower first premolar is common for Class III camouflage. 30 / 50 Category: Orthodontics 30) Which type of occlusion is used in Wits appraisal? Functional occlusion Mandibular plane Frankfort plane Palatal plane Functional occlusion is used in Wits appraisal. 31 / 50 Category: Orthodontics 31) A patient has a protruded archwire causing ulceration. What is the best management? Clip the wire Apply wax Prescribe pain medication Reassure the patient Clipping the wire is the most effective way to relieve irritation. 32 / 50 Category: Orthodontics 32) A 12-year-old patient has unilateral crossbite and reduced facial height. What is the best treatment? No treatment Slow expansion Rapid expansion Surgery Rapid expansion is effective for correcting unilateral crossbite. 33 / 50 Category: Orthodontics 33) A 15-year-old patient has a diastema with no mesiodens. What is the most likely cause? Open bite Low frenal attachment Normal growth Genetic factors Low frenal attachment is a common cause of diastema. 34 / 50 Category: Orthodontics 34) A 4-year-old patient has malaligned teeth and an unerupted upper canine. What is the best treatment? Extraction Expansion Nonextraction Distalization Expansion is often the best option for creating space in young patients. 35 / 50 Category: Orthodontics 35) What is the most important factor for using a functional appliance? Patient compliance Treatment duration Skeletal age Dental development Skeletal age is the most critical factor for functional appliance success. 36 / 50 Category: Orthodontics 36) What is the characteristic of a dolichocephalic skull? Long and narrow Asymmetric Normal proportions Short and wide A dolichocephalic skull is long and narrow. 37 / 50 Category: Orthodontics 37) A patient is missing tooth #46, with tilted #45 and supraerupted #26. What is the best management? Orthodontic treatment to open space Orthodontic treatment to close space Extraction No treatment Opening space is necessary to address the tilted and supraerupted teeth. 38 / 50 Category: Orthodontics 38) What is the best appliance to retain crossbite correction? Essex retainer No retention needed Hawley retainer Quad helix A Hawley retainer is commonly used to retain crossbite correction. 39 / 50 Category: Orthodontics 39) What is the main advantage of the quad helix appliance? Easy to fabricate Rapid expansion Does not depend on patient compliance Skeletal effect The quad helix does not rely on patient compliance, making it highly effective. 40 / 50 Category: Orthodontics 40) A pediatric patient has a thumb-sucking habit. What is the best appliance to use? Hass appliance W arch Quad helix Palatal crib A palatal crib is effective for breaking thumb-sucking habits. 41 / 50 Category: Orthodontics 41) A patient has a unilateral crossbite. What is the best treatment? No treatment Unilateral expansion Bilateral expansion Surgery Unilateral expansion is the treatment for unilateral crossbite. 42 / 50 Category: Orthodontics 42) A 12-year-old patient has a 4 mm diastema, unerupted mesiodens, and low frenal attachment. What is the best treatment? Extract mesiodens and use fixed appliances Frenectomy only Wait for canine eruption No treatment Extracting the mesiodens and using fixed appliances is the best approach. 43 / 50 Category: Orthodontics 43) What is the best way to level the curve of Spee in a growing patient? Posterior bite plane Anterior bite plane No treatment TADs An anterior bite plane is effective for leveling the curve of Spee. 44 / 50 Category: Orthodontics 44) An adult patient uses a tongue-retaining appliance. What is its primary purpose? Treat sleep apnea Correct tongue thrust Reduce snoring Improve speech Tongue-retaining appliances are primarily used for sleep apnea. 45 / 50 Category: Orthodontics 45) A 14-year-old patient has a diastema and low frenal attachment. What should be examined before starting orthodontic treatment? Panoramic X-ray Blanching of the incisive papilla Study models Cephalometric analysis Blanching of the incisive papilla indicates frenal attachment interference. 46 / 50 Category: Orthodontics 46) What diagnostic tool is most relevant for assessing arch size discrepancy? Photographs Study casts Dental history Panoramic X-ray Study casts allow for detailed analysis of arch size and tooth structure. 47 / 50 Category: Orthodontics 47) A patient has a retained primary canine with good prognosis and an impacted permanent canine with poor prognosis. What is the best treatment? Extract the primary canine and place an implant Crown the primary canine Extract the primary canine and close space Leave the primary canine If the primary canine has a good prognosis, it should be left in place. 48 / 50 Category: Orthodontics 48) A patient has Class II on the right and Class I on the left. What is the diagnosis? Class II subdivision left Class I Class II subdivision right Class III Class II subdivision right is the correct diagnosis. 49 / 50 Category: Orthodontics 49) What is the indication for growth modification in a patient with Class III skeletal malocclusion? Protraction of the maxilla No treatment Surgery Protraction of the mandible Protraction of the maxilla is the primary goal in Class III growth modification. 50 / 50 Category: Orthodontics 50) A 19-year-old patient has maxillary constriction. What is the best treatment? Surgical-assisted maxillary expansion Rapid expansion LeFort osteotomy Orthodontic treatment Surgical-assisted maxillary expansion (SARPE) is the best treatment for maxillary constriction in adults. 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
