INBDE (Integrated National Board Dental Examination) Practice Exam

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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.

What is the main inorganic matter in enamel?

Hydroxyapatite
Calcium Phosphate
Fluorapatite
Calcium Carbonate

The correct answer is: Hydroxyapatite

Enamel is primarily composed of hydroxyapatite, which is a crystalline calcium phosphate mineral. It is a highly mineralized tissue that provides hardness and strength to the tooth structure. Hydroxyapatite crystals are arranged in a unique pattern within the enamel matrix, contributing to its overall durability and resistance to wear and decay. This composition makes option A the correct answer.