Science, asked by ranidevi81435, 1 year ago

I want the answer of 4th roman 1,2,3 question

Attachments:

ifrahxyz: above fill in the blanks?

ifrahxyz: got it!

ranidevi81435: not fill in the blanks

preetykahsual: what

ifrahxyz: your question.

ranidevi81435: TOMS TEETH ARE DISFIGURED AND HAD BLACK DEPOSITS IN BETWEEN .WHY DO YOU THINK SO

ifrahxyz: is that the only question to be answered?

ranidevi81435: YES

Answers

Answered by preetykahsual

the fourth roman no. is lV

ifrahxyz: oh i didn't see that.

preetykahsual: ok

Answered by ifrahxyz

Teeth that turn black are usually due to one of two common types of causes: extrinsic or intrinsic.

Extrinsic: Extrinsic damage comes from the outside of the teeth. This includes staining, tartar, or other damage that affects the outer dental enamel.

Intrinsic: Intrinsic damage starts on the inside and progresses outward. This occurs when a condition within the tooth causes decay and damage.

ifrahxyz: it can also loose its shape to a different shape .This can be due to cavity.

ifrahxyz: Cavity-causing bacteria in the mouth consume simple sugars, converting them into acid plaque.The acid plaque produced by these bacteria cause the hard inorganic layers of the enamel and dentine to soften.Thus loosing its original shape

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