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牙周病是人类流行最广泛的疾病之一,对口腔健康的危害十分严重。在WHO的领导和组织下,已经在世界范围内对牙周疾病进行了深入广泛的流行病学研究。具有代表性的方法主要包括Schour和Massler(1947),Greene(1960,1964,1967),Russell(1956,1967),Ramfjord(1959.1967),Loe(1967),WHO(1977)等建立的各种指数系统。这些方法对于深入认识牙周疾病的流行现象和规律,以及加强国际间交流起到了十分重要的作用。然而,以往这些方法的功能主要在于描述人群患病的严重程度,疾病的状态以及疾病的经历等方面,并且存在稳定性及敏感性差,花费时间太多等问题。
Periodontal disease is one of the most widespread epidemic of human beings, the harm to oral health is very serious. Under the leadership and organization of the WHO, extensive and extensive epidemiological studies of periodontal disease have been conducted worldwide. Representative methods include the various indices established by Schour and Massler (1947), Greene (1960, 1964, 1967), Russell (1956, 1967), Ramfjord (1959.1967), Loe (1967) and WHO system. These methods play an important role in understanding the prevalence and regularity of periodontal disease and in strengthening international exchanges. However, the functions of these methods in the past mainly lie in describing the population's severity of illness, the status of the disease and the disease experience, etc., and have problems of poor stability and sensitivity, too much time consuming and the like.