Which part of the tooth has got no nerve endings?

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Solution

Enamel

Enamel does not contain any blood vessels or nerves; therefore, enamel damage is painless. Enamel can be stained by coffee, tea, tobacco and other food dyes, especially in case of poor oral hygiene. Over time, it wears off, a process called attrition or abrasion

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Which part of the tooth has soft material with nerves and blood vessels?

When a person eats sugary food, then organisms A present in his mouth act on sugar to produce a substance B. The substance B first dissolves the calcium salts from the top part C of the tooth and then (rum its middle part D forming holes E. These holes ultimately reach the part F in the lower part of tooth which contains: nerves and blood vessels. The substance B irritates the nerve endings inside the tooth causing toothache.

(a) What are (i) organisms A, and (ii) substance B?
(b) What are (i) part C, and (ii) part D, of tooth known as?
(c) By what name are the holes E in the tooth known?
(d) Name the part F of the tooth.
(e) What will happen if organisms A reach part F of the tooth?

Q. When a person eats sugary food, then organisms A present in his mouth act on sugar to produce a substance B. The substance B first dissolves the calcium salts from the top part C of the tooth and then from its middle part D forming holes E. These holes ultimately reach the part F in the lower part of tooth which contains nerves and blood vessels. The substance B irritates the nerve endings inside the tooth causing toothache.
(a) What are (i) organisms A, and (ii) substance B?
(b) What are (i) part C, and (ii) part D, of tooth known as?
(c) By what name are the holes E in the tooth known?
(d) Name the part F of the tooth.
(e) What will happen if organisms A reach part F of the tooth known?

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Which part of the tooth has got no nerve endings?

Enamel​​​ Enamel does not contain any blood vessels or nerves; therefore, enamel damage is painless. Enamel can be stained by coffee, tea, tobacco and other food dyes, especially in case of poor oral hygiene. Over time, it wears off, a process called attrition or abrasion

Enamel

Enamel does not contain any blood vessels or nerves; therefore, enamel damage is painless. Enamel can be stained by coffee, tea, tobacco and other food dyes, especially in case of poor oral hygiene. Over time, it wears off, a process called attrition or abrasion