A Study of the Screening of Gingivitis Using Casiostat

学龄儿童的牙周病很多是由于口腔卫生不良引起的，牙菌斑和蛀牙也是造成牙周病的主要因素。关于灭牙剂与龋齿之间的关系，已有许多研究。然而，有关龋齿药与牙周病之间关系的研究却很少。本研究的目的是评估龋齿与牙龈炎的关系。我们对437名初中部儿童进行了龋活动性试验（CARIOSTAT^<<encircledR>>）、唾液潜血试验（SALIVASTER^<<encircledR>>）与牙龈炎的关系分析。1)孵育24h后Cariostat评分与牙龈炎相关性显著（p<0.001）。将牙龈炎指数分为重度、中度/轻度/正常三组时，三组间Cariostat评分分布差异有统计学意义（统计学检验p < 0.001）。2)孵育48h后Cariostat评分与牙龈炎也有显著相关（p<0.05, p<0.001）。而Cariostat评分在三组间的分布无明显差异。3)唾液测试评分与牙龈炎相关（p<0.05）。唾液评分在三组间的分布无显著差异。4)孵育24h后Cariostat评分与Salivaster测试评分无相关性。5)牙合错误与牙龈炎相关（p<0.001）6)经过1年的口腔健康指导，牙龈炎未愈合者中有18.8%存在牙合错误，而牙龈炎愈合者中只有1.2%存在牙合错误。孵育24h后Cariostat评分与牙龈炎相关（p<0.001）。本研究提示Cariostat可以反映口腔卫生状况，与牙龈炎和龋齿相关。

In many cases, the periodontal disease among the school aged children occurs from bad oral hygiene and the main factor is also dental plaque as well as dental caries. Many studies have been done on the relationship between Cariostat and dental caries. However few study have been prformed on the relationship between Cariostat and periodontal disease.The purpose of this study is to estimate the relationship between Cariositt and gingivitis. We examined the relationship among, caries activity test (CARIOSTAT^<<encircledR>>), salivary occuult blood test (SALIVASTER^<<encircledR>>), and gingivitis among 437 junior high school children.1) Cariostat score after 24h incubation correlated to gingivitis significantly (p<0.001). When the gingivitis index divided to three groups (severe and moderate/slight/normal), the ditribution of Cariostat score among the three groups showed significant difference (chisqure test p>0.001).2) Cariostat score after 48h incubation also correlated to gingivitis significantly (p<0.05 and p<0.001 respectively.). However the distribution of Cariostat score aamong three groups didn't show any difference.3) Salivaster test score correlated to gingivitis (p<0.05). The distribution of salivaster score among the three groups didn't show any significant difference.4) Cariostat score after 24h incubation didn't correlate to Salivaster test score.5) Malocclusion correlated to gingivitis (p<0.001)6) After one year of oral health instruction, 18,8% of the subjects who didn't heal the gingivitis had the malocclusion, on the other hands, only 1.2% of the subjects who healed the gingivitis has the malocclusionThe Cariostat score after 24h incubation correlate to gingivitis (p<0.001).This study suggested Cariostat could reflect the oral hygiene status and correlated to gingivitis as well as dental caries.