Upadhyaya C, Humagain M
Department of Dentistry, Dhulikhel Hospital, Kathmandu University Teaching Hospital, Dhulikhel, Nepal.
Kathmandu Univ Med J (KUMJ). 2009 Jan-Mar;7(25):59-62. doi: 10.3126/kumj.v7i1.1767.
The aim of this study was to investigate the type of tooth usually associated with extraction due to caries or periodontal disease and its relation to age at which these were lost, among patients attending dental surgery outpatient clinic, Dhulikhel Hospital, Kathmandu University Teaching Hospital (KUTH).
A total no of 626 patients (male-299 and female-327) attending at outpatient clinic, in the department of Dentistry, Dhulikhel Hospital were taken in over a period of six months. The details about the permanent teeth to be extracted regarding each tooth type, including age and sex of the patient, type of tooth extracted, cause of extraction were collected, causes other than dental caries and periodontal disease were excluded.
The highest proportion of extraction due to caries occurred between 21-30 years of age, while that of periodontal disease was between 51-60 years of age. More than 80% of teeth lost were from below 40 years of age group. Mandibular first molar was by far the most frequently extracted tooth due to dental caries followed by maxillary first molar. Maxillary teeth were lost more than mandibular teeth due to periodontal disease.
Dental caries and periodontal disease are the two most important factors for extraction or removal of tooth. In this study dental caries is the major cause for loosing tooth among young group of people.
本研究旨在调查在加德满都大学教学医院杜利凯尔医院牙科门诊就诊的患者中,因龋齿或牙周病通常需要拔除的牙齿类型及其与牙齿缺失时年龄的关系。
在六个月的时间里,选取了杜利凯尔医院牙科门诊的626名患者(男性299名,女性327名)。收集了关于每颗待拔除恒牙的详细信息,包括患者的年龄和性别、拔除的牙齿类型、拔牙原因,排除了龋齿和牙周病以外的其他原因。
因龋齿拔牙的最高比例出现在21至30岁之间,而因牙周病拔牙的最高比例出现在51至60岁之间。超过80%的牙齿缺失发生在40岁以下年龄组。下颌第一磨牙是迄今为止因龋齿最常拔除的牙齿,其次是上颌第一磨牙。因牙周病导致上颌牙齿缺失的比下颌牙齿多。
龋齿和牙周病是拔牙或牙齿脱落的两个最重要因素。在本研究中,龋齿是年轻人牙齿缺失的主要原因。