4 tác hại của vôi răng với răng miệng
Cao răng (vôi răng) là một chất gần như không thể nhìn thấy bằng mắt thường. Theo thời gian cao răng sẽ bám chắc vào chân và cổ răng của chúng ta và có thể gây ra nhiều tác hại với sức khoẻ răng miệng.
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