A study on the relationship between tooth to denture base discrepancy and periodontal disease.

牙齿与义齿基托差异与牙周病关系的研究。

基本信息

批准号：
04671174
负责人：
INAGAKI Koji
金额：
$ 1.28万
依托单位：
Department of Periodontology, School of Dentistry, Aichi-Gakuin University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04671174/
关键词：
discrepancy malocclusion crowding pathological tooth migration juvenile periodontitis 〓生

项目摘要

Accompanying Japan's economic growth, Japanese society has been changed. With the development of medical care and nutrition, life expectancy in Japan has become very high. These changes are dramatically affecting our health, and may influence the oral breakdown process related to periodontal disease. In such circumstances, the frequency of periodontal disease and malocclusion (spacing and crowding) associated with the tooth to denture base discrepancy is gradually increasing. In the present study, the relationship between tooth to denture base discrepancy and periodontal disease were studied, in order to suggest answers to some of above phenomena. The periodontal condition of 2677 patients, 13 to 82 years of age for the recent 4 years were assessed. Furthermore, the periodontal status of 78 young adults aged 13 to 30 years with periodontitis were analyzed. The portion of males to females for all subjects was 1 : 1.7. The number of patients increased in age until the peak was reached in the 51-55 years age group. The subjects whose ages were under 30 years totaled the 253 (9.5%), and the ratio of male to female was 1 : 2.2. Of the 253 subjects, 78 (30.8%) had a noncontributory medical history. The teeth which were lost the most were first molars followed by second premolars, and the teeth most often remaining were canines. Thirty six patients (46.2%) showed a general alveolar bone loss, which affected all pars of the dentition and only 3 subjects (3.8%) demonstrated localized alveolar bone loss, which damaged both incisors and first molars. The teeth with radiographical alveolar bone loss of both mesial and distal surfaces were more frequent than those of either mesial or distal surfaces. Bleeding on probing and the ratio of teeth in which the probing depth was more than 4 or 7 mm tended to decrease with age. These findings indicate that periodontitis may already have begun even in their twenties and emphasize to need for early discovery and treatment of this proble

日本社会伴随着日本的经济增长。随着医疗和营养的发展，日本的预期寿命变得非常高。这些变化极大地影响了我们的健康，并可能影响与牙周疾病有关的口腔分解过程。在这种情况下，牙周疾病和变质咬合（间距和拥挤）的频率与牙齿基础差异相关的频率正在逐渐增加。在本研究中，研究了牙齿与义齿碱差异与牙周疾病之间的关系，以提出上述某些现象的答案。评估了2677例患者的牙周病，最近4年的13至82岁。此外，分析了78名牙周炎13至30岁的年轻人的牙周状况。所有受试者的男性到女性的一部分为1：1.7。 51-55岁年龄段的患者人数增加，直到达到峰值。年龄不到30岁的受试者总计253（9.5％），而男性与女性的比率为1：2.2。在253名受试者中，有78名（30.8％）患有非贡献病史。丢失最多的牙齿是第一批磨牙，其次是第二磨牙，牙齿最常剩下的牙齿是犬齿。 36例患者（46.2％）显示出一般的肺泡骨质流失，这影响了所有牙列的所有标准，只有3名受试者（3.8％）表现出局部牙槽骨质流失，这两种牙齿骨骼损坏了门牙和第一磨牙。与介体或远端表面的牙齿射线照相牙齿骨损失相比，牙齿骨骼损失的牙齿损失更为频繁。探测的出血和探测深度超过4或7 mm的牙齿的比率倾向于随着年龄的增长而降低。这些发现表明，即使在二十多岁时，牙周炎也可能已经开始，并强调需要早期发现和治疗这一问题