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 was the first anesthetic used in dentistry?

  1. Nitrous oxide

  2. Ether

  3. Chloroform

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

Nitrous oxide, also known as laughing gas, was the first anesthetic used in dentistry. It was discovered by Joseph Priestley in 1772 and first used for dental procedures in 1844.

Multiple choice

What was the primary cause of tooth decay before the widespread adoption of fluoride toothpaste?

  1. Sugar consumption

  2. Poor oral hygiene

  3. Genetic factors

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

Sugar consumption was the primary cause of tooth decay before the widespread adoption of fluoride toothpaste. The bacteria in plaque feed on sugar, producing acids that attack the teeth and cause cavities.

Multiple choice

Which dental procedure involves the removal of the pulp from a tooth?

  1. Root canal

  2. Extraction

  3. Filling

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

Root canal is a dental procedure that involves the removal of the pulp from a tooth. It is typically performed when the pulp becomes infected or damaged.

Multiple choice

Which dental procedure involves the placement of a crown on a tooth?

  1. Crowning

  2. Extraction

  3. Filling

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

Crowning is a dental procedure that involves the placement of a crown on a tooth. A crown is a cap that is placed over a tooth to restore its strength, shape, and appearance.

Multiple choice

Which dental procedure involves the removal of a tooth?

  1. Extraction

  2. Filling

  3. Crowning

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

Extraction is a dental procedure that involves the removal of a tooth. It is typically performed when a tooth is severely damaged, decayed, or impacted.

Multiple choice

Which dental procedure involves the placement of a filling in a tooth?

  1. Filling

  2. Extraction

  3. Crowning

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

Filling is a dental procedure that involves the placement of a filling in a tooth. A filling is a material that is used to restore the strength, shape, and appearance of a tooth that has been damaged by decay or trauma.

Multiple choice

Which dental procedure involves the straightening of teeth?

  1. Orthodontics

  2. Extraction

  3. Filling

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

Orthodontics is a dental procedure that involves the straightening of teeth. It is typically performed using braces or aligners to gradually move the teeth into their desired positions.

Multiple choice

What is the most common type of oral surgery performed?

  1. Tooth extraction

  2. Root canal

  3. Dental implant placement

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

Tooth extraction is the most commonly performed oral surgery procedure, often done to remove decayed or impacted teeth.

Multiple choice

What is a dental implant?

  1. A synthetic tooth root

  2. A type of dental filling

  3. A device used to straighten teeth

  4. A material used to whiten teeth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A dental implant is a synthetic tooth root that is surgically placed into the jawbone to support a dental crown.

Multiple choice

Which of the following is a potential complication of oral surgery?

  1. Infection

  2. Bleeding

  3. Nerve damage

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

Infection, bleeding, and nerve damage are all potential complications of oral surgery.

Multiple choice

What is the term for the surgical removal of a tooth?

  1. Extraction

  2. Excision

  3. Enucleation

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

Extraction is the surgical removal of a tooth from the mouth.

Multiple choice

Which type of oral surgery is performed to remove impacted wisdom teeth?

  1. Coronectomy

  2. Odontectomy

  3. Osteotomy

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

Coronectomy is a surgical procedure to remove the crown of an impacted wisdom tooth while leaving the roots intact.

Multiple choice

What is the term for the surgical removal of a portion of the jawbone?

  1. Ostectomy

  2. Osteotomy

  3. Mandibulectomy

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

Ostectomy is the surgical removal of a portion of the jawbone.

Multiple choice

What is the name of the surgical procedure to remove a cyst or tumor from the jaw?

  1. Cystectomy

  2. Tumorectomy

  3. Excision

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

Cystectomy is the surgical removal of a cyst from the jaw.

Multiple choice

What is the term for the surgical repair of a cleft lip or palate?

  1. Cheiloplasty

  2. Palatoplasty

  3. Cleft lip and palate repair

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

Cheiloplasty, palatoplasty, and cleft lip and palate repair are all terms for the surgical repair of a cleft lip or palate.