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 botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Spores of Riccia are liberated by

  1. Peristome teeth and seta.

  2. Shrinkage of annulus and explosion of capsule.

  3. Death and decay of thallus and external pressure on calyptra.

  4. Xerochasy of elaters.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The sporogonium of Riccia never dehisces. The spores are liberated by the decay or shrivelling of the surrounding outer layer of the calyptra and thallus tissue. The thallus perishes in the dry season. The spores remain behind on the soil. In this condition, they may be dispersed by the wind.

Multiple choice

Cleaning teeth is important because

  1. to give you a pretty smile

  2. to make your breath smell nice

  3. to shine your teeth

  4. prevent acid eroding your teeth
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bacteria in the mouth convert sugars into acids, which can erode tooth enamel. Cleaning teeth removes plaque and food particles, preventing this acid buildup.

Multiple choice bio-chemistry digestion of food types of ecological pyramids the muscular system and digestive system in human beings introduction to human digestive system

Which part of the body contains teeth?

  1. Buccal cavity

  2. Body cavity

  3. Both A and B

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

The mouth leads to the buccal cavity or oral cavity. The oral cavity has a number of teeth and a muscular tongue. Teeth help in mastication of food when tongue helps in mixing of food with saliva.

So the correct answer is 'Buccal cavity'.

Multiple choice bio-chemistry digestion of food types of ecological pyramids the muscular system and digestive system in human beings introduction to human digestive system

In the buccal cavity, food is broken down by the teeth of

  1. Upper jaw only

  2. Lower jaw only

  3. Both A and B

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

The tongue is a muscular structure that cannot break down food. The food is broken down by the teeth of the upper jaw and lower jaw. Teeth is a hard part of the mouth that has a hard chewing surface covering made up of an enamel which helps in the mastication of food.

So the correct answer is 'Both A and B'.

Multiple choice

What is the role of salivary calcium and phosphate ions in saliva?

  1. Digestion of carbohydrates

  2. Neutralization of acids

  3. Remineralization of teeth

  4. Lubrication of the oral cavity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Salivary calcium and phosphate ions play a crucial role in the remineralization of teeth, helping to repair and strengthen tooth enamel.

Multiple choice

What is the most common type of dental infection?

  1. Tooth decay

  2. Gum disease

  3. Abscess

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

Tooth decay, also known as caries, is the most common type of dental infection. It is caused by bacteria that feed on the sugars in food and produce acids that attack the teeth.

Multiple choice

What is an abscess?

  1. A collection of pus in a tooth or gum

  2. A cavity in a tooth

  3. A type of gum disease

  4. A type of oral cancer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An abscess is a collection of pus in a tooth or gum. It is usually caused by a bacterial infection and can be very painful.

Multiple choice

Which dental infection can spread to other parts of the body if left untreated?

  1. Tooth decay

  2. Gum disease

  3. Abscess

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

An abscess can spread to other parts of the body if left untreated. This can lead to serious complications, such as sepsis.

Multiple choice

What is the treatment for tooth decay?

  1. Fillings

  2. Crowns

  3. Root canals

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

The treatment for tooth decay depends on the severity of the decay. Fillings are used to repair small cavities. Crowns are used to protect teeth that have been severely damaged. Root canals are used to treat infections in the pulp of the tooth. Extractions are used to remove teeth that are too badly damaged to be saved.

Multiple choice

What is the treatment for gum disease?

  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

The treatment for gum disease depends on the severity of the disease. Scaling and root planing is a deep cleaning procedure that removes plaque and bacteria from the teeth and gums. Antibiotics may be prescribed to treat infections. Surgery may be necessary to treat advanced gum disease.

Multiple choice

When should you see a dentist about a dental infection?

  1. As soon as possible

  2. Within a few days

  3. Within a week

  4. When the pain becomes severe
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

You should see a dentist about a dental infection as soon as possible. Dental infections can spread quickly and can lead to serious complications if left untreated.

Multiple choice

Which TRICARE program provides dental coverage to active duty military members and their families?

  1. TRICARE Prime

  2. TRICARE Select

  3. TRICARE Standard

  4. TRICARE Dental Program
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The TRICARE Dental Program provides dental coverage to active duty military members and their families.

Multiple choice

What are the main components of a comprehensive school dental program?

  1. Preventive services, such as fluoride treatments and sealants.

  2. Restorative services, such as fillings and crowns.

  3. Educational programs on oral hygiene and dental health.

  4. Referral services to dental care providers for specialized treatment.
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

A comprehensive school dental program includes preventive, restorative, educational, and referral services to address the oral health needs of students.

Multiple choice

Which of the following is a characteristic feature of the Mewati dialect of Haryanvi?

  1. The use of the dental fricative /ζ/

  2. The use of the palatal fricative /ι/

  3. The use of the labial fricative /κ/

  4. The use of the retroflex flap /ά/
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The use of the dental fricative /ζ/ is a characteristic feature of the Mewati dialect of Haryanvi.