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

What is the term for the hard tissue that covers the crown of a tooth?

  1. Enamel

  2. Dentin

  3. Cementum

  4. Pulp
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Enamel is the hardest tissue in the human body and is composed of hydroxyapatite crystals.

Multiple choice

What is the term for the soft tissue that fills the pulp chamber and root canals of a tooth?

  1. Enamel

  2. Dentin

  3. Cementum

  4. Pulp
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pulp contains blood vessels, nerves, and connective tissue.

Multiple choice

What is the term for the hard tissue that forms the bulk of a tooth?

  1. Enamel

  2. Dentin

  3. Cementum

  4. Pulp
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dentin is a calcified tissue that is softer than enamel but harder than cementum.

Multiple choice

What is the term for the thin layer of tissue that covers the root of a tooth?

  1. Enamel

  2. Dentin

  3. Cementum

  4. Pulp
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cementum is a calcified tissue that helps to anchor the tooth in the jawbone.

Multiple choice

What is the term for the space between two teeth?

  1. Interdental space

  2. Gingival sulcus

  3. Periodontal ligament

  4. Alveolar bone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The interdental space is the space between two adjacent teeth.

Multiple choice

What is the term for the groove that runs along the biting surface of a tooth?

  1. Fissure

  2. Groove

  3. Pit

  4. Cuspid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A fissure is a deep, narrow groove in the biting surface of a tooth.

Multiple choice

What is the term for the small depression on the biting surface of a tooth?

  1. Fissure

  2. Groove

  3. Pit

  4. Cuspid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A pit is a small, shallow depression on the biting surface of a tooth.

Multiple choice

What is the term for the pointed projection on the biting surface of a tooth?

  1. Fissure

  2. Groove

  3. Pit

  4. Cuspid
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A cuspid is a pointed projection on the biting surface of a tooth.

Multiple choice

What is the term for the tissue that surrounds and supports the teeth?

  1. Gingiva

  2. Periodontal ligament

  3. Alveolar bone

  4. Cementum
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The gingiva is the tissue that surrounds and supports the teeth.

Multiple choice

What is the term for the ligament that connects the tooth to the jawbone?

  1. Gingiva

  2. Periodontal ligament

  3. Alveolar bone

  4. Cementum
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The periodontal ligament is the ligament that connects the tooth to the jawbone.

Multiple choice

What is the term for the bone that supports the teeth?

  1. Gingiva

  2. Periodontal ligament

  3. Alveolar bone

  4. Cementum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The alveolar bone is the bone that supports the teeth.

Multiple choice

What is the term for the process of removing plaque and tartar from the teeth?

  1. Scaling

  2. Root planing

  3. Polishing

  4. Fluoride treatment
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Scaling is the process of removing plaque and tartar from the teeth.

Multiple choice

What is the term for the process of smoothing the root surfaces of a tooth?

  1. Scaling

  2. Root planing

  3. Polishing

  4. Fluoride treatment
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Root planing is the process of smoothing the root surfaces of a tooth.

Multiple choice

What is the term for the process of applying a fluoride varnish or gel to the teeth?

  1. Scaling

  2. Root planing

  3. Polishing

  4. Fluoride treatment
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fluoride treatment is the process of applying a fluoride varnish or gel to the teeth.

Multiple choice

What is the term for the process of restoring a decayed or damaged tooth to its original shape and function?

  1. Filling

  2. Crown

  3. Bridge

  4. Implant
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A filling is a material used to restore a decayed or damaged tooth to its original shape and function.