Question 1
A cast shows the maxillary teeth positioned significantly ahead of the mandibular teeth. Which occlusion class is indicated?
Show answer & explanation
Correct answer: B - Class II
10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The CDT-O exam has 90 questions and runs 1 hours 30 minutes.
These 10 free CDT-O questions are organized by exam domain, so you can see how each part of the Certified Dental Technician - Orthodontics blueprint is tested. Reveal the answer and explanation under each question.
A cast shows the maxillary teeth positioned significantly ahead of the mandibular teeth. Which occlusion class is indicated?
Correct answer: B - Class II
An appliance is designed to maintain tooth position without applying corrective force. How is this appliance classified?
Correct answer: A - Passive
Before fabricating an appliance, a technician should first evaluate whether the design is affected by:
Correct answer: B - Material or case-design contraindications
A technician needs a wire component that can deliver a controlled orthodontic force and be activated during treatment. Which component is most appropriate?
Correct answer: B - Spring
A screw is incorporated into an acrylic appliance. The primary reason for accurate placement is to:
Correct answer: A - Allow intended appliance function
A technician applies acrylic by adding polymer and monomer incrementally onto the appliance. Which technique is being used?
Correct answer: B - Sprinkle technique
An acrylic orthodontic appliance has a repairable fracture. Which procedure is indicated?
Correct answer: A - Acrylic repair
Which material is used to prevent solder from flowing into an unwanted area?
Correct answer: C - Anti-flux
When selecting a polishing agent for an orthodontic appliance, the most important consideration is compatibility with the:
Correct answer: A - Material being finished
Before operating vacuum/pressure-forming equipment, the technician should:
Correct answer: A - Follow equipment safety procedures
The full bank has 1,020 more CDT-O questions with explanations.
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