Sangnes G, Gjermo P
Community Dent Oral Epidemiol. 1976 Mar;4(2):77-83. doi: 10.1111/j.1600-0528.1976.tb01607.x.
The prevalence of oral soft and hard tissue lesions related to mechanical oral hygiene procedures was recorded and correlated to toothbrushing habits and oral hygiene status in two selected samples. Fifty-one percent of 533 persons examined exhibited gingival retractions and 45% had wedge-shaped defects in the cervical area of one or several teeth. Both types of lesions were often seen in the same area, indicating a common etiologic factor. The subjects with a good oral hygiene status, as well as those who brushed more than twice daily, showed a high frequency of lesions. The various toothbrushing techniques did not, however, seem to influence the development of such lesions in the present material. Subjective symptoms were reported in a few cases only.
在两个选定样本中，记录了与机械性口腔卫生程序相关的口腔软硬组织病变的患病率，并将其与刷牙习惯和口腔卫生状况相关联。在接受检查的533人中，51%出现牙龈退缩，45%在一颗或多颗牙齿的颈部区域有楔形缺损。这两种类型的病变常在同一区域出现，表明存在共同的病因。口腔卫生状况良好的受试者以及每天刷牙超过两次的受试者，病变发生率较高。然而，在本研究材料中，各种刷牙方法似乎并未影响此类病变的发生。仅在少数病例中报告了主观症状。
