Sekino Satoshi, Takahashi Ryoichi, Numabe Yukihiro, Okamoto Hiroshi
Nippon Dental University, School of Life Dentistry, Department of Periodontology, 1-9-20, Fujimi, Chiyodaku, Tokyo, Japan.
Tokyo Periodontal Treatment Center, 16-14, Koamichio, Nihonbashi, Chuo-ku, Tokyo, Japan.
BMC Oral Health. 2020 Feb 19;20(1):60. doi: 10.1186/s12903-020-1046-4.
To date, a few studies have documented the detailed periodontal conditions of a Japanese population. It is important to know if the awareness of Japanese nationals and dentists regarding oral hygiene and prevention of periodontal disease have improved when compared with the past in Japan for the development of future scenarios regarding prevention. The aim of this study was to investigate the severity, prevalence, and extent of periodontal disease in the adult population of the city of Takahagi, Japan. Results were also compared with those of an epidemiological study performed in Japan in the 1980s.
A total of 582 (aged 20 to 89 years) randomly sampled Takahagi residents answered a comprehensive questionnaire and participated in clinical examinations.
The mean percentages of tooth surfaces harboring plaque and exhibiting BOP were 59.5 ± 20.9% and 31.1 ± 21.1%, respectively. The mean PPD and CAL were 2.5 ± 0.5 mm and 2.9 ± 1.0 mm, respectively. Compared with results of the 1980s survey, the mean percentages of plaque and bleeding on probing were lower in the current population. The mean CAL and prevalence of attachment loss of ≥5 mm in some age groups were higher in the present study than in the 1980s study. There were no statistically significant differences with respect to mean probing depth between the 1980s and current age groups.
Periodontal disease was still prevalent in the current Japanese population, even though some improvement occurred. Proper public health programs therefore need to be established.
迄今为止，已有一些研究记录了日本人群的详细牙周状况。了解日本国民和牙医对口腔卫生及牙周病预防的认识与过去相比是否有所提高，对于制定未来预防方案十分重要。本研究的目的是调查日本高萩市成年人群中牙周病的严重程度、患病率和病变范围。研究结果还与20世纪80年代在日本进行的一项流行病学研究结果进行了比较。
共有582名（年龄在20至89岁之间）随机抽取的高萩市居民回答了一份综合问卷并参与了临床检查。
有牙菌斑的牙面平均百分比和探诊出血的平均百分比分别为59.5±20.9%和31.1±21.1%。平均探诊深度（PPD）和临床附着丧失（CAL）分别为2.5±0.5毫米和2.9±1.0毫米。与20世纪80年代的调查结果相比，当前人群中牙菌斑和探诊出血的平均百分比更低。在本研究中，某些年龄组的平均临床附着丧失和附着丧失≥5毫米的患病率高于20世纪80年代的研究。20世纪80年代和当前年龄组之间的平均探诊深度没有统计学上的显著差异。
尽管有所改善，但牙周病在当前日本人群中仍然普遍存在。因此，需要制定适当的公共卫生计划。
