By 5-10 years: Teeth show more wear and signs ofdisease.
5 - 10岁,牙齿磨损程度加重,出现病牙症状。
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But there are two much more serious problems, common dental diseases that can lead not only to loss ofteeth but also to loss of life: periodontal disease and oral cancer.
Periodontitis is an advanced form of gum disease resulting in inflammation within the supporting tissues of the teeth, "attachment loss" and a breakdown of the bone that supports your teeth.