Biology

Dental and Oral Biology

924 Questions

Dental and Oral Biology focuses on the structure, development, and function of teeth and oral tissues. It covers key concepts like dental formulas, tooth eruption, and common oral diseases. These topics are essential for medical and biology entrance examinations.

Dental formulaTooth anatomyMilk teethOral diseasesTooth decay

Dental and Oral Biology Questions

Multiple choice
  1. The motor program continuously adapts to changes in food type or occlusion.

  2. The muscles of mastication are all innervated by the the facial nerve (or CN VII).

  3. The mandible is the only bone that moves during mastication.

  4. Mastication is mainly an unconscious act.

  5. The feedback from proprioceptive nerves in teeth and the temporomandibular joints govern the creation of neural pathways.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Unlike most of the other facial muscles, which are innervated by the facial nerve (or CN VII), the muscles of mastication are all innervated by the trigeminal nerve (or CN V). More specifically, they are innervated by the mandibular branch.

Multiple choice
  1. tooth enamel

  2. femur bone

  3. keratinized epithelium

  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The hardest tissue in the human body is tooth enamel. Tooth enamel is the thin, hard and white covering that protects the dentin of the teeth.

Multiple choice
  1. force of cohesion decreases

  2. force of cohesion increases

  3. force of adhesion increases

  4. force of adhesion decreases

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Adhesion is the force of attraction between different types of molecules. The dental plate clings to the roof of the mouth due to the adhesive force between the saliva and the plate/mouth surface.