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

Root Canal Treatment relates to one's :

  1. Kidneys

  2. Teeth

  3. Prostate

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

Root Canal Treatment (RCT) is an endodontic procedure to treat infected tooth pulp and save the natural tooth. It is performed by dentists on teeth, not on kidneys, prostate, or heart.

Multiple choice

Which of the following statements is/are incorrect?

a. Tooth enamel is similar to bone. b. Pulp cavity contains nerves and blood vessels. c. The part of tooth above enamel is called dentine.

  1. Both a and b

  2. Both a and c

  3. Both b and c

  4. Only a

  5. Only c
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer as both these statements are incorrect.

Tooth enamel is harder than bone. It is the hardest part of the human body. The part below the tooth enamel is called dentine.

Multiple choice

Triple rooted premaxillary teeth are found in

  1. homonidae

  2. careenoid

  3. anthropoid

  4. in all the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Anthropoid primates (including humans, apes, and Old World monkeys) typically have triple-rooted premolars, particularly the lower premolars. This is a distinguishing dental feature. The question uses non-standard terminology ('homonidae' should be Hominidae, 'careenoid' appears to be a misspelling).

Multiple choice

The most common difficulty associated with patients suffering from neuromuscular disorders in construction of a complete denture includes ___________.

  1. recording jaw relations

  2. in impression taking

  3. only 1 and 2

  4. in arrangement of posterior teeth

  5. in border moulding
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The most common difficulty associated with patients suffering from neuromuscular disorders in construction of a complete denture is recording jaw relations.

Multiple choice

Which of the following statements is false about closest speaking space?

  1. Closest speaking space was suggested by Silverman.

  2. Closest speaking space measures the vertical dimension when the mandible and muscles are involved in function of speech.

  3. Closest speaking space measures the vertical dimension when the muscles and mandible are in rest position.

  4. Closest speaking space in normal jaw relations is approximately 1.5 to 3 mm.

  5. Closest speaking space increases when there is small vertical dimension.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is correct answer because this is incorrect statement about closest speaking space.