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.

Which PDL fibers provide major support for the tooth during function?

Transseptal fibers
Horizontal fibers
Alveolar crest fibers
Oblique fibers

The correct answer is: Oblique fibers

D Oblique fibers provide major support for the tooth during function because they run diagonally from the cementum of one tooth to the bone of another tooth. This helps to resist the forces of chewing and biting, providing stability to the tooth. Transseptal fibers (option A) are found in the gingival tissue and help hold the teeth in their respective positions, but they do not provide major support during function. Horizontal fibers (option B) run horizontally from the root of the tooth to the surrounding bone, but they do not provide as much support as oblique fibers. Alveolar crest fibers (option C) run from the alveolar crest to the cementum of the tooth, but they also do not provide as much support during function as oblique fibers.