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 NOT a common cause of toothaches in children?

  1. Cavities

  2. Gum disease

  3. Abscessed tooth

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

Teething is a natural process and is not typically a cause of toothaches in children. Cavities, gum disease, and abscessed teeth are all common causes of toothaches.

Multiple choice

What is the term for the condition in which a child's teeth are misaligned or crooked?

  1. Malocclusion

  2. Overbite

  3. Underbite

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

Malocclusion is the general term for the condition in which a child's teeth are misaligned or crooked. Overbite, underbite, and crossbite are all specific types of malocclusion.

Multiple choice

How is periodontitis treated?

  1. Scaling and root planing

  2. Antibiotics

  3. Surgery

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

Periodontitis is treated with scaling and root planing, antibiotics, and surgery. Surgery may be necessary to remove diseased tissue and bone, and to reposition the teeth.

Multiple choice

True or False: Periodontitis can be reversed.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Periodontitis cannot be reversed, but it can be treated to prevent further damage to the gums and teeth.

Multiple choice

Which of the following is a treatment option for periodontitis?

  1. Scaling and root planing

  2. Antibiotics

  3. Surgery

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

Scaling and root planing, antibiotics, and surgery are all treatment options for periodontitis.

Multiple choice

What type of prosthetic is used to create the appearance of fangs or other dental modifications?

  1. Foam latex

  2. Gelatin

  3. Silicone

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

Acrylic is a commonly used material for creating prosthetic fangs or other dental modifications due to its strength, durability, and ability to be molded into various shapes.

Multiple choice

Which of the following is NOT a common type of glass ionomer cement?

  1. Conventional glass ionomer cements

  2. Resin-modified glass ionomer cements

  3. Compomer cements

  4. Polyacid-modified glass ionomer cements
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Compomer cements are not a type of glass ionomer cement, but rather a hybrid material combining glass ionomer and composite resin.

Multiple choice

Which type of tea is known for its potential to improve oral health and reduce the risk of cavities?

  1. Green tea

  2. Black tea

  3. Oolong tea

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

Green tea contains compounds that may help prevent tooth decay and gum disease, promoting oral health.

Multiple choice

Which of the following is a common dental injury in combat sports?

  1. Tooth Avulsion

  2. Tooth Fracture

  3. Temporomandibular Joint (TMJ) Disorder

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

Tooth avulsion, or the complete displacement of a tooth from its socket, is a common dental injury in combat sports due to direct impact to the face.

Multiple choice

What is the most common type of cleft lip and palate?

  1. Unilateral cleft lip

  2. Bilateral cleft lip

  3. Cleft palate only

  4. Unilateral cleft lip and palate
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Unilateral cleft lip and palate is the most common type of cleft lip and palate, occurring in about 1 in 1000 births.

Multiple choice

Which language type is characterized by a system of retroflex consonants, in which the tongue is curled back towards the roof of the mouth?

  1. Retroflex

  2. Non-retroflex

  3. Palatal

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

Retroflex languages have a unique phonological system in which the tongue is curled back towards the roof of the mouth to produce retroflex consonants. This type of sound is not found in many languages.

Multiple choice

Which language type is characterized by a system of palatal consonants, in which the tongue is raised towards the hard palate?

  1. Retroflex

  2. Non-retroflex

  3. Palatal

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

Palatal languages have a unique phonological system in which the tongue is raised towards the hard palate to produce palatal consonants. This type of sound is not found in many languages.

Multiple choice

What is a peritonsillar abscess?

  1. A collection of pus that forms around the tonsils

  2. A type of tonsillitis caused by bacteria

  3. A surgical procedure to remove the tonsils

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A peritonsillar abscess is a collection of pus that forms around the tonsils.

Multiple choice

Which of the following sources is NOT a common source of fluoride?

  1. Toothpaste

  2. Mouthwash

  3. Fluoridated water

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

Tea contains fluoride, but it is not a common source of fluoride for dental health compared to toothpaste, mouthwash, and fluoridated water.

Multiple choice

Which age group is most susceptible to dental fluorosis?

  1. Infants and toddlers

  2. Children and adolescents

  3. Adults

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

Children and adolescents are most susceptible to dental fluorosis because their teeth are still developing and more porous, allowing fluoride to accumulate more easily.