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 a condition in which the jaw joint becomes inflamed?

  1. Temporomandibular joint disorder

  2. Trigeminal neuralgia

  3. Bell's palsy

  4. Myofascial pain syndrome
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Temporomandibular joint disorder is a condition in which the jaw joint becomes inflamed.

Multiple choice

What is the primary tooth eruption sequence?

  1. Central incisors, lateral incisors, canines, first molars, second molars

  2. Central incisors, lateral incisors, canines, second molars, first molars

  3. Central incisors, lateral incisors, first molars, canines, second molars

  4. Central incisors, lateral incisors, second molars, canines, first molars
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The primary tooth eruption sequence typically follows this order: central incisors, lateral incisors, canines, first molars, and second molars.

Multiple choice

Which dental sealant is commonly used in pediatric dentistry?

  1. Glass ionomer cement

  2. Composite resin

  3. Amalgam

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

Glass ionomer cement is a commonly used dental sealant in pediatric dentistry due to its fluoride-releasing properties and ability to bond to both enamel and dentin.

Multiple choice

What is the term for the space between primary teeth?

  1. Diastema

  2. Edentulous space

  3. Interdental space

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

Diastema refers to the space between primary teeth, which is a normal physiological occurrence.

Multiple choice

Which dental condition is characterized by the presence of white or brown spots on the teeth?

  1. Dental caries

  2. Fluorosis

  3. Enamel hypoplasia

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

Fluorosis is a dental condition caused by excessive fluoride intake, resulting in white or brown spots on the teeth.

Multiple choice

Which type of dental restoration is commonly used for treating cavities in primary teeth?

  1. Amalgam filling

  2. Composite resin filling

  3. Glass ionomer cement filling

  4. Stainless steel crown
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Stainless steel crowns are commonly used for treating cavities in primary teeth due to their durability and ability to withstand the forces of chewing.

Multiple choice

What is the term for the process of removing plaque and calculus 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 refers to the process of removing plaque and calculus from the teeth using specialized instruments.

Multiple choice

Which dental condition is characterized by the formation of a cavity on the root surface of a tooth?

  1. Dental caries

  2. Root caries

  3. Enamel hypoplasia

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

Root caries refers to the formation of a cavity on the root surface of a tooth, often seen in older adults with receding gums.

Multiple choice

What is the term for the process of applying a protective coating to the teeth to prevent decay?

  1. Fluoride treatment

  2. Dental sealant

  3. Varnish application

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

Dental sealant is a protective coating applied to the teeth to prevent decay, especially in the grooves and pits of the molars and premolars.

Multiple choice

Which dental condition is characterized by the abnormal development of the teeth, resulting in discoloration and structural defects?

  1. Dental caries

  2. Fluorosis

  3. Enamel hypoplasia

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

Dentinogenesis imperfecta is a dental condition characterized by the abnormal development of dentin, leading to discoloration and structural defects in the teeth.

Multiple choice

What is the term for the process of removing the pulp from a tooth?

  1. Extraction

  2. Root canal treatment

  3. Scaling

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

Root canal treatment involves removing the pulp from a tooth to treat infection or severe decay.

Multiple choice

Which dental condition is characterized by the formation of a cyst at the apex of a tooth root?

  1. Dental caries

  2. Fluorosis

  3. Enamel hypoplasia

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

Periapical cyst is a dental condition characterized by the formation of a cyst at the apex of a tooth root, often caused by infection or trauma.

Multiple choice

What is the initial stage of periodontal disease called?

  1. Gingivitis

  2. Periodontitis

  3. Advanced periodontitis

  4. Necrotizing periodontal disease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gingivitis is the initial stage of periodontal disease, characterized by inflammation and bleeding of the gums.

Multiple choice

What is the main goal of periodontal treatment?

  1. To remove plaque and tartar

  2. To reduce inflammation

  3. To prevent further bone loss

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

The main goal of periodontal treatment is to remove plaque and tartar, reduce inflammation, and prevent further bone loss.

Multiple choice

Which of the following is a common sign of periodontitis?

  1. Bleeding gums

  2. Receding gums

  3. Pus between the teeth and gums

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

Bleeding gums, receding gums, and pus between the teeth and gums are all common signs of periodontitis.