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

What is the primary role of fluoride in dental pharmacology?

  1. Prevention of dental caries

  2. Relief of dental pain

  3. Treatment of periodontal disease

  4. Whitening of teeth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fluoride is primarily used in dental pharmacology for the prevention of dental caries by strengthening tooth enamel and inhibiting demineralization.

Multiple choice

What is the primary role of corticosteroids in dental pharmacology?

  1. Reduction of inflammation

  2. Relief of dental pain

  3. Treatment of periodontal disease

  4. Whitening of teeth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Corticosteroids are primarily used in dental pharmacology for the reduction of inflammation and suppression of the immune response.

Multiple choice

What is the primary mechanism of action of dental adhesives in bonding restorative materials to tooth structure?

  1. Chemical bonding to tooth enamel and dentin

  2. Mechanical interlocking with tooth structure

  3. Stimulation of dentinogenesis

  4. Reduction of bacterial leakage
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dental adhesives primarily exert their bonding effects by chemically bonding to tooth enamel and dentin, creating a strong and durable bond between the restorative material and tooth structure.

Multiple choice

What is the primary role of pit and fissure sealants in dental pharmacology?

  1. Prevention of dental caries

  2. Relief of dental pain

  3. Treatment of periodontal disease

  4. Whitening of teeth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pit and fissure sealants are primarily used in dental pharmacology for the prevention of dental caries by sealing the deep grooves and fissures of teeth, preventing the accumulation of plaque and bacteria.

Multiple choice

Which dental instrument is used to remove plaque and calculus from teeth?

  1. Scaler

  2. Explorer

  3. Curette

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

A scaler is a dental instrument used to remove plaque, calculus, and other debris from teeth.

Multiple choice

What is the purpose of a dental explorer?

  1. To remove plaque and calculus

  2. To examine the teeth for cavities

  3. To apply fluoride

  4. To whiten teeth
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A dental explorer is a sharp, pointed instrument used to examine the teeth for cavities and other defects.

Multiple choice

Which dental instrument is used to remove decayed tooth tissue?

  1. Bur

  2. Excavator

  3. Spoon excavator

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

An excavator is a dental instrument used to remove decayed tooth tissue and prepare the tooth for a filling.

Multiple choice

Which dental instrument is used to elevate the gum tissue away from the tooth?

  1. Elevator

  2. Scaler

  3. Explorer

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

An elevator is a dental instrument used to elevate the gum tissue away from the tooth in order to perform procedures such as root canal therapy or periodontal surgery.

Multiple choice

Which dental instrument is used to measure the depth of a periodontal pocket?

  1. Periodontal probe

  2. Ruler

  3. Caliper

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

A periodontal probe is a dental instrument used to measure the depth of a periodontal pocket, which is the space between the tooth and the gum.

Multiple choice

What is the function of a dental articulator?

  1. To hold the dental impression

  2. To mix amalgam

  3. To adjust the occlusion of teeth

  4. To sterilize dental instruments
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A dental articulator is a device used to adjust the occlusion of teeth, which is the way the upper and lower teeth come together.

Multiple choice

Which dental instrument is used to remove excess cement from a tooth after a crown or bridge has been placed?

  1. Cement remover

  2. Scaler

  3. Explorer

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

A cement remover is a dental instrument used to remove excess cement from a tooth after a crown or bridge has been placed.

Multiple choice

Which dental instrument is used to apply fluoride to the teeth?

  1. Fluoride applicator

  2. Scaler

  3. Explorer

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

A fluoride applicator is a dental instrument used to apply fluoride to the teeth in order to prevent cavities.

Multiple choice

What is the function of a dental handpiece?

  1. To hold the dental bur

  2. To mix amalgam

  3. To adjust the occlusion of teeth

  4. To sterilize dental instruments
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A dental handpiece is a device that holds the dental bur and rotates it at high speed.

Multiple choice

Which dental instrument is used to sterilize dental instruments?

  1. Autoclave

  2. Scaler

  3. Explorer

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

An autoclave is a device used to sterilize dental instruments by exposing them to high pressure steam.

Multiple choice

Which dental instrument is used to whiten teeth?

  1. Bleaching tray

  2. Scaler

  3. Explorer

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

A bleaching tray is a dental instrument used to hold bleaching gel against the teeth in order to whiten them.