探讨深圳市宝安区儿童氟斑牙患病率与唾液氟含量的相关性。

选取2016年5月至2017年5月深圳市宝安区中心医院口腔科及儿科收治的500例8~ 12岁儿童患者作为研究对象，依据唾液氟含量分为≥1.0 mg/L组（100例）与<1.0 mg/L组（400例）。采用SPSS 17.0统计软件比较不同组别氟斑牙患病率以及缺损型氟斑牙患病率，并进行Logistic回归分析影响儿童氟斑牙和缺损型氟斑牙患病率的因素。

唾液氟含量≥1.0 mg/L氟斑牙患病率为88.0%（88/100）、缺损型氟斑牙患病率为64.0%（64/100），<1.0 mg/L组分别为32.0%（128/400）、20.0%（80/400），差异有统计学意义（χ²_{≥1.0 mg/L}= 102.2、χ²_{<1.0 mg/L}= 75.5，P<0.001）。Logistic回归分析结果提示，唾液氟含量为儿童氟斑牙和缺损型氟斑牙患病率的独立影响因素（OR= 4.442、95% CI= 1.485~ 4.450，P<0.05）。

深圳市宝安区儿童唾液氟含量与儿童氟斑牙和缺损型氟斑牙患病率具有相关性，对唾液氟含量进行监测并且控制有助于预防氟斑牙的发生。

To analyze the correlation between salivary fluoride concentration and the prevalence rate of dental fluorosis of children in Bao′an District.

A total of 500 children aged 8~ 12 years were enrolled in the Department of Stomatology and Pediatrics of the Central Hospital of Bao′an District from May 2016 to May 2017. According to the fluoride content of saliva divided into ≥ 1.0 mg/L group (100 cases) and <1.0 mg/L group (400 cases) . The prevalence of children′s dental fluorosis and dental fluorosis defect in two groups were compared by SPSS 17.0, influencing factors for children′s dental fluorosis and the fluoride content in saliva defect prevalence rate of dental fluorosis by Logistic regression analysis.

The prevalence of children′s dental fluorosis and dental fluorosis defect in ≥1.0 mg/L group were 88.0% (88/100) and 64.0% (64/100) , those of <1.0 mg/L group were 32.0% (128/400) and 20.0% (80/400) , and the difference was statistically significant (χ²_{≥1.0 mg/L}= 102.2、χ²_{<1.0 mg/L}= 75.5, P<0.001) . Logistic regression analysis results indicated that the independent influencing factors for children′s dental fluorosis and the fluoride content in saliva defect prevalence rate of dental fluorosis (OR= 4.442、95% CI= 1.485~ 4.450, P<0.05) .

The prevalence of children′s dental fluorosis and dental fluorosis defect in Bao′an District had correlation with the salivary fluoride concentration. To monitor and control the salivary fluorine content would be helpful of preventing children′s dental fluorosis.