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牙菌斑长期堆积变化形成的结石 来自维基百科,自由的百科全书
齿石(英语:calculus、tartar),或称牙结石、牙石,是牙菌斑长时间堆积变化而形成的。齿石通常伴随著口臭、牙龈萎缩与牙龈发炎出现。用牙刷、牙线与牙间刷清洁牙齿可以避免齿石形成,但齿石一旦形成后由于附著太过牢固,则须去牙科诊所做牙结石清除术(洗牙)来去除。[1]
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