INBDE (Integrated National Board Dental Examination) Practice Exam

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

Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

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.

When the gingival margin is gingival to the CEJ in a class 2 amalgam preparation, the axial depth of the axiogingival line angle should be?

.60 to .65mm
.75 to .80mm
.85 to .90mm
.95 to 1.00mm

The correct answer is: .75 to .80mm

When the gingival margin is gingival to the CEJ in a class 2 amalgam preparation, the axial depth of the axiogingival line angle should be between .75 to .80mm. This is because in a class 2 amalgam preparation, the gingival margin should be placed at the level of the CEJ or slightly below it in order to achieve proper retention and resistance form. Options A, C, and D all have depth measurements that are either too shallow or too deep and would not provide adequate support for the restoration. Therefore, the correct answer is option B.