Stephens R G, Kogon S L, Jarvis A M
Division of Oral Medicine and Oral Radiology, Faculty of Dentistry, University of Western Ontario, London.
J Can Dent Assoc. 1991 Jun;57(6):501-4.
The reasons for extraction of teeth were determined in a Canadian population sample of 909 patients, ranging in age from 14 to 91 years. Caries was the primary cause of extraction (63%), followed by periodontitis (34%). For the adult age groups, the percentages were approximately the same. While periodontitis was the cause of one-third of the extractions, these occurred in only one-fifth of the population. Although there is a commonly expressed belief that periodontitis is the major cause of tooth loss in adults, a review of both historical and contemporary literature does not support this position. According to the current concept of the natural history of periodontal disease, only about one-fifth of the population, or less, is likely to have periodontitis severe enough to cause tooth loss. This view is consistent with data from this and most other studies on the reasons for tooth extraction.
在一个年龄范围为14至91岁的909名加拿大患者的样本群体中，确定了拔牙的原因。龋齿是拔牙的主要原因（63%），其次是牙周炎（34%）。对于成年年龄组，百分比大致相同。虽然牙周炎是三分之一拔牙病例的原因，但这些病例仅发生在五分之一的人群中。尽管人们普遍认为牙周炎是成年人牙齿脱落的主要原因，但对历史和当代文献的回顾并不支持这一观点。根据牙周疾病自然史的当前概念，只有约五分之一或更少的人群可能患有严重到足以导致牙齿脱落的牙周炎。这一观点与本研究以及大多数其他关于拔牙原因的研究数据一致。
