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
Match the following:
| |
|
| Type of teeth |
|
|
Function |
| a. Incisors |
1. Biting food |
| b. Canines |
2. Grinding and crushing food |
| c. Premolars |
3. Tearing food |
-
a – 2, b – 3, c – 1
-
a – 1, b – 3, c – 2
-
a – 3, b – 1, c – 2
-
a – 3, b – 2, c – 1
-
a – 1, b – 2, c – 3
B
Correct answer
Explanation
This is the correct option. Incisors are a narrow-edged tooth at the front of the mouth that are used for biting food. Canines are pointed teeth between the incisors and premolars and are used for tearing food. Premolars are the teeth situated inbetween the canine and the molar teeth and are used for grinding and crushing food.
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dextrans
-
glycogen
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inulin
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cellulose
A
Correct answer
Explanation
They are also a class of storage homo-poly-saccharides of branched linear chains of D-glucose, but the sub units in these are linked by a, 1-6 instead of a, 1-4 glycosidic bonds. They are secreted as sugary slimes by yeast and certain bacteria. Bacteria growing on surfaces of our teeth produce dextran which becomes important component of dental plaques or patches.
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Hyoid
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Mandible
-
Parietal bone
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Zygomatic bone
B
Correct answer
Explanation
Mandibles together with maxillae constitute jaw bones and help in feeding.
-
Cavity
-
Tartar
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Dentin
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Plaque
C
Correct answer
Explanation
All others are tooth problems, not parts of a tooth.
B
Correct answer
Explanation
A complete set of permanent teeth in an adult human consists of 32 teeth, including wisdom teeth.
-
ossein
-
chondrin
-
dentine
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enamel
D
Correct answer
Explanation
Enamel is the hardest part in human body.
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1123/1123
-
2123/2123
-
2033/1023
-
2231/2232
B
Correct answer
Explanation
The dental formula of an adult human is i 2/2 c1/1 pm 2/2 m3/3
-
tongue
-
teeth
-
esophagus
-
pharynx
B
Correct answer
Explanation
Mastication or chewing is the process, by which food is crushed and ground, by the teeth. It is the first step of digestion, and it increases the surface area of foods, to allow more efficient break down, by enzymes. During the mastication process, the food is positioned between the teeth for grinding, by the cheek and tongue.
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excretion
-
procreation
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digestion
-
cellular respiration
C
Correct answer
Explanation
Mastication or chewing is the process by which, food is crushed and ground by teeth. It is the first step of digestion and it increases the surface area of foods, to allow more efficient break down, by enzymes. During the mastication process, the food is positioned between the teeth for grinding, by the cheek and tongue.
B
Correct answer
Explanation
The milk or deciduous or temporary teeth are 20 in numbers; 10 each in the upper jaw and in the lower jaw. The milk teeth begin to erupt when the child is about 6 months old and should all be present by the end of 24 months.
C
Correct answer
Explanation
Canine teeth are 4 in number.They are very strong, pointed corner teeth for tearing and shredding, placed laterally to each lateral incisor. They are larger and stronger than the incisors. The canine tooth morphology is characterized by the large, conical crown which projects beyond the level of the other teeth and one single root, longer than all other human teeth types.The upper canine teeth are sometimes called eyeteeth.
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HID syndrome
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KID syndrome
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Bart-Pumphrey syndrome
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Bart syndrome
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Vohwinkel syndrome
E
Correct answer
Explanation
This option is correct. Vohwinkel syndrome causes abnormal thickening of the palms and soles and is associated with keratin 9 and keratin 16.
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Molars
-
Premolars
-
Canines
-
Incisors
A
Correct answer
Explanation
Molars are the large, flat teeth located at the back of the mouth specifically designed for grinding and chewing food. Incisors are for biting, and canines are for tearing.
C
Correct answer
Explanation
Teeth protect tongue and ribs protect lungs
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It is calcium
-
That calcium
-
Calcium
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Along with calcium
C
Correct answer
Explanation
Calcium. All the other options make the sentence meaningless and incorrect.