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4 年
龈乳头龈缘附着龈指数
龈乳头龈缘附着龈指数又称PMA指数(Papillary Marginal Attached GingivalIndex)。1948年,Schour&Massler提出,当时用于青少年牙周疾病调查。该指数设计的出发点是认为病变始于牙龈乳头,逐渐扩展到牙龈缘,最后达附着龈,波及的数量和方式反应疾病的严重程度。最初的指数 ...
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