BMC Oral Health. 2013 Aug 19;13:40. doi: 10.1186/1472-6831-13-40.
Limited information on oral health status for young adults aged 18 year-olds is known, and no available data exists in Hong Kong. The aims of this study were to investigate the oral health status and its risk indicators among young adults in Hong Kong using negative binomial regression.
A survey was conducted in a representative sample of Hong Kong young adults aged 18 years. Clinical examinations were taken to assess oral health status using DMFT index and Community Periodontal Index (CPI) according to WHO criteria. Negative binomial regressions for DMFT score and the number of sextants with healthy gums were performed to identify the risk indicators of oral health status.
A total of 324 young adults were examined. Prevalence of dental caries experience among the subjects was 59% and the overall mean DMFT score was 1.4. Most subjects (95%) had a score of 2 as their highest CPI score. Negative binomial regression analyses revealed that subjects who had a dental visit within 3 years had significantly higher DMFT scores (IRR = 1.68, p < 0.001). Subjects who brushed their teeth more frequently (IRR = 1.93, p < 0.001) and those with better dental knowledge (IRR = 1.09, p = 0.002) had significantly more sextants with healthy gums.
Dental caries experience of the young adults aged 18 years in Hong Kong was not high but their periodontal condition was unsatisfactory. Their oral health status was related to their dental visit behavior, oral hygiene habit, and oral health knowledge.
对于 18 岁的年轻人的口腔健康状况知之甚少，香港也没有可用的数据。本研究旨在使用负二项回归分析探讨香港年轻人的口腔健康状况及其风险指标。
在香港的代表性年轻成年人样本中进行了一项调查。临床检查采用 DMFT 指数和根据世界卫生组织标准的社区牙周指数 (CPI) 评估口腔健康状况。进行负二项回归分析 DMFT 评分和健康牙龈 sextants 的数量，以确定口腔健康状况的风险指标。
共检查了 324 名年轻人。研究对象的龋齿患病率为 59%，总体平均 DMFT 评分为 1.4。大多数受试者（95%）的 CPI 得分最高为 2。负二项回归分析显示，在过去 3 年内进行过牙科就诊的受试者的 DMFT 评分显著更高（IRR=1.68，p<0.001）。刷牙频率较高的受试者（IRR=1.93，p<0.001）和具有更好的口腔健康知识的受试者（IRR=1.09，p=0.002）具有更多健康牙龈 sextants。
香港 18 岁年轻人的龋齿经历并不高，但他们的牙周状况并不理想。他们的口腔健康状况与他们的牙科就诊行为、口腔卫生习惯和口腔健康知识有关。
