名词
中文翻译：牙垢
同义词：
['dental plaque', 'dental tartar例句：1. Dental calculus is a common cause of tooth decay.（牙垢是导致蛀牙的常见原因。）']
例句：
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1. Dental calculus is a common cause of tooth decay.
牙垢是导致蛀牙的常见原因。
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2.The dentist removed the dental calculus from my teeth.
牙医从我的牙齿中取出了牙垢。
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3. The patient was advised to brush their teeth twice a day to prevent dental calculus buildup.
患者被建议每天刷牙两次以防止牙垢积累。