名词
中文翻译：牙垢含量
同义词：
['gum content', 'dental plaque', 'dental biofilm']
例句：
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1. Thedentist advised him to brush his teeth twice a day to maintain good gum health.
牙医建议他每天刷牙两次以保持良好的牙齿健康。
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2. Gum disease is often caused by the buildup of bacteria in the gums, which can lead to tooth loss.
牙龈疾病通常是由牙龈中细菌的积累引起的，这可能导致牙齿脱落。
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3.The study found that people with poor oral hygiene had higher levels of gum disease.
研究发现，口腔卫生状况不佳的人患牙龈疾病的比例更高。