A deposit of food and bacteria on the teeth, which may produce tartar and dental caries is called:

Correct option is A

Ans. (a)
Sol. Plaque is a sticky, colorless film of bacteria, food particles, and saliva that forms on the teeth. If not removed through regular brushing and flossing, plaque can harden into tartar (calculus), leading to tooth decay (dental caries) and gum disease (gingivitis and periodontitis).
Explanation of each option:
· (a) Plaque – Correct. Plaque is the soft bacterial film that can cause cavities and tartar buildup.
· (b) Oral hygiene – Incorrect. Oral hygiene refers to practices like brushing, flossing, and dental check-ups that help prevent plaque formation.
· (c) Stomatitis – Incorrect. Stomatitis is inflammation of the mouth and lips, not a bacterial deposit on teeth.
· (d) Tenting – Incorrect. Tenting refers to skin elasticity testing for dehydration, not dental issues.
Thus, the correct answer is (a) Plaque, as it is the primary cause of tartar and dental caries.