Biology

Dental and Oral Biology

967 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. a – 2, b – 3, c – 1

  2. a – 1, b – 3, c – 2

  3. a – 3, b – 1, c – 2

  4. a – 3, b – 2, c – 1

  5. a – 1, b – 2, c – 3

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

This is the correct option. Incisors are a narrow-edged tooth at the front of the mouth that are used for biting food. Canines are pointed teeth between the incisors and premolars and are used for tearing food. Premolars are the teeth situated inbetween the canine and the molar teeth and are used for grinding and crushing food.

Multiple choice
  1. dextrans

  2. glycogen

  3. inulin

  4. cellulose

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

They  are also a class of storage homo-poly-saccharides of branched linear chains of D-glucose, but the sub units in these are linked by a, 1-6 instead of a, 1-4 glycosidic bonds. They are secreted as sugary slimes by yeast and certain bacteria. Bacteria growing on surfaces of our teeth produce dextran which becomes important component of dental plaques or patches.

Multiple choice
  1. Hyoid

  2. Mandible

  3. Parietal bone

  4. Zygomatic bone

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

Mandibles together with maxillae constitute jaw bones and help in feeding.

Multiple choice
  1. tongue

  2. teeth

  3. esophagus

  4. pharynx

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

Mastication or chewing is the process, by which food is crushed and ground, by the teeth. It is the first step of digestion, and it increases the surface area of foods, to allow more efficient break down, by enzymes. During the mastication process, the food is positioned between the teeth for grinding, by the cheek and tongue.

Multiple choice
  1. excretion

  2. procreation

  3. digestion

  4. cellular respiration

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

Mastication or chewing is the process by which, food is crushed and ground by teeth. It is the first step of digestion and it increases the surface area of foods, to allow more efficient break down, by enzymes. During the mastication process, the food is positioned between the teeth for grinding, by the cheek and tongue.

Multiple choice
  1. 32

  2. 20

  3. 8

  4. 12

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

The milk or deciduous or temporary teeth are 20 in numbers; 10 each in the upper jaw and in the lower jaw. The milk teeth begin to erupt when the child is about 6 months old and should all be present by the end of 24 months.

Multiple choice
  1. 8

  2. 12

  3. 4

  4. 2

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

Canine teeth are 4 in number.They are very strong, pointed corner teeth for tearing and shredding, placed laterally to each lateral incisor. They are larger and stronger than the incisors. The canine tooth morphology is characterized by the large, conical crown which projects beyond the level of the other teeth and one single root, longer than all other human teeth types.The upper canine teeth are sometimes called eyeteeth.

Multiple choice
  1. Molars

  2. Premolars

  3. Canines

  4. Incisors

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

Molars are the large, flat teeth located at the back of the mouth specifically designed for grinding and chewing food. Incisors are for biting, and canines are for tearing.