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

Which of the following is a common type of dental caries treatment?

  1. Dental fillings

  2. Dental crowns

  3. Root canal therapy

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Common types of dental caries treatment include dental fillings, dental crowns, and root canal therapy.

Multiple choice

What is the term for the softening and demineralization of tooth enamel?

  1. Dental erosion

  2. Dental caries

  3. Tooth decay

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dental erosion, dental caries, and tooth decay all refer to the softening and demineralization of tooth enamel.

Multiple choice

Which of the following is a common complication of untreated dental caries?

  1. Abscess

  2. Gum disease

  3. Tooth loss

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Common complications of untreated dental caries include abscess, gum disease, and tooth loss.

Multiple choice

Which of the following is a common type of dental caries that affects the root surface of the teeth?

  1. Root caries

  2. Pit and fissure caries

  3. Smooth-surface caries

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

Root caries is a common type of dental caries that affects the root surface of the teeth.

Multiple choice

What is the term for the white or brown spots that appear on the teeth in the early stages of dental caries?

  1. Demineralization

  2. Cavities

  3. White spots

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

White spots are the term for the white or brown spots that appear on the teeth in the early stages of dental caries.

Multiple choice

Which of the following is a common type of dental caries that affects the pits and fissures of the teeth?

  1. Pit and fissure caries

  2. Smooth-surface caries

  3. Interproximal caries

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

Pit and fissure caries is a common type of dental caries that affects the pits and fissures of the teeth.

Multiple choice

What is the most common type of dental prosthesis used to replace missing teeth?

  1. Dentures

  2. Bridges

  3. Implants

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

Dentures are the most common type of dental prosthesis used to replace missing teeth, providing a removable solution for restoring function and aesthetics.

Multiple choice

What is the primary goal of periodontal therapy?

  1. Prevent gum disease

  2. Treat gum disease

  3. Restore lost gum tissue

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Periodontal therapy aims to prevent gum disease, treat existing gum disease, and restore lost gum tissue to maintain oral health and function.

Multiple choice

What is the primary cause of tooth decay?

  1. Plaque

  2. Sugar

  3. Acid

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

Plaque is a sticky film that forms on your teeth when bacteria feed on the sugars in your food. This plaque can then produce acids that attack the enamel on your teeth, leading to tooth decay.

Multiple choice

What is the name of the hard tissue that covers the outside of your teeth?

  1. Enamel

  2. Dentin

  3. Pulp

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

Enamel is the hard, white tissue that covers the outside of your teeth. It is the hardest tissue in your body and is responsible for protecting your teeth from decay.

Multiple choice

What is the name of the soft tissue that fills the inside of your teeth?

  1. Enamel

  2. Dentin

  3. Pulp

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

Pulp is the soft tissue that fills the inside of your teeth. It contains blood vessels, nerves, and connective tissue.

Multiple choice

What is the name of the tissue that surrounds the roots of your teeth?

  1. Enamel

  2. Dentin

  3. Pulp

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

Cementum is the tissue that surrounds the roots of your teeth. It is a hard, calcified tissue that helps to anchor your teeth in your jawbone.

Multiple choice

What is the name of the bone that supports your teeth?

  1. Maxilla

  2. Mandible

  3. Zygomatic bone

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

The maxilla and mandible are the two bones that support your teeth. The maxilla is the upper jawbone, and the mandible is the lower jawbone.

Multiple choice

What is the name of the condition that causes your teeth to become yellow or brown?

  1. Tooth decay

  2. Gum disease

  3. Dental fluorosis

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

Tetracycline staining is a condition that causes your teeth to become yellow or brown. It is caused by taking the antibiotic tetracycline during childhood, when your teeth are still developing.

Multiple choice

What is the name of the condition that causes your teeth to become pitted or eroded?

  1. Tooth decay

  2. Gum disease

  3. Dental erosion

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

Dental erosion is a condition that causes your teeth to become pitted or eroded. It is caused by the acids in food and drink, as well as by stomach acids that are regurgitated into the mouth.