National Dental Assisting Examining Board (NDAEB) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the National Dental Assisting Exam with comprehensive quiz questions, including multiple choice and detailed explanations. Equip yourself for success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is required for a class II restoration to ensure proper contact with the adjacent tooth?

Using a rubber dam
Using a wedge
Using a flowable composite
All of the above

The correct answer is: Using a wedge

For a Class II restoration, which typically involves decay on the interproximal surfaces of posterior teeth, proper contact with the adjacent tooth is crucial to prevent food impaction and maintain periodontal health. Using a wedge is essential because it helps to create tight contact between the restoration and the tooth next to it. The wedge accomplishes this by pushing the matrix band toward the tooth, ensuring that the restorative material will adhere properly and establish a contact point that mimics the natural anatomy of the tooth. While using a rubber dam can aid in keeping the area dry and free from saliva during the procedure, and employing flowable composite can enhance adaptation in certain areas, these methods are not specifically required to ensure proper contact. The use of a wedge directly addresses the need for correct interproximal contact and is a critical element of the Class II restoration technique.