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 type of toothbrush is best for cleaning your teeth?

  1. Soft-bristled toothbrush

  2. Medium-bristled toothbrush

  3. Hard-bristled toothbrush

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

A soft-bristled toothbrush is the best choice for cleaning your teeth because it is gentle on your gums and enamel, while still being effective at removing plaque and bacteria.

Multiple choice

Which of the following is a common cause of tooth decay?

  1. Plaque

  2. Fluoride

  3. Vitamin C

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

Plaque is a sticky film of bacteria that forms on teeth and can lead to tooth decay and gum disease.

Multiple choice

Which dental disease is characterized by inflammation and bleeding of the gums?

  1. Tooth decay

  2. Gum disease

  3. Oral thrush

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

Gum disease is a common condition that affects the gums and can lead to tooth loss if left untreated.

Multiple choice

What is the term for a cavity in a tooth?

  1. Caries

  2. Pulpitis

  3. Abscess

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

Caries is the medical term for a cavity or hole in a tooth.

Multiple choice

What is the term for a condition in which the gums recede from the teeth?

  1. Gingivitis

  2. Periodontitis

  3. Recession

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

Recession is a condition in which the gums recede from the teeth, exposing the roots.

Multiple choice

What is the term for a small, painful ulcer that can occur in the mouth?

  1. Canker sore

  2. Cold sore

  3. Herpes simplex virus

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

Canker sores are small, painful ulcers that can occur in the mouth.

Multiple choice

What is the term for a condition in which the teeth become worn down?

  1. Attrition

  2. Abrasion

  3. Erosion

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

Attrition, abrasion, and erosion are all conditions in which the teeth become worn down.

Multiple choice

Which of the following is a common cause of tooth sensitivity?

  1. Gum recession

  2. Tooth decay

  3. Cracked tooth

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

Gum recession, tooth decay, and cracked tooth can all cause tooth sensitivity.

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.