幼儿期使用含氟滴剂与氟离子透入对儿童第一恒磨牙脱矿的影响

Effects of Fluoride Drop or FluorideIon Infiltration in Toddler Period on Demineralization of First Permanent Molar of Children

目的探讨幼儿期使用含氟滴剂(FD)与氟离子透入(FII)对儿童第一恒磨牙脱矿的影响。方法选择成都市使用FD超过3年的儿童45名及其对照组(未使用过FD)40名,厦门市使用FII超过3年的儿童45名及其对照组(未使用过FII)40名,采用KaVo DIAGNOdent激光荧光测定仪测定各组儿童第一恒磨牙不同点位脱矿程度,观察幼儿期使用FD和FII对其脱矿的影响。结果幼儿期使用FD儿童的新萌第一恒磨牙脱矿程度小于对照组(P<0·01),使用FII儿童的新萌第一恒磨牙脱矿程度与对照组无统计学差异(P>0·05)。结论幼儿期使用FD有助于儿童第一恒磨牙的再矿化,而幼儿期使用FII对新萌出的第一恒磨牙脱矿无明显影响。

Objective To observe the effect of fluoride drop or fluoride ion infdtration on demineralization of the first permanent molar of children. Methods 45 children applied by fluoride drop over 3 years in Chengdu and 40 controls were selected. 45 children applied by fluoride ion infiltration more than 3 years in Xiamen and 40 controls were selected in this study. Demineralization of the different sites of the first permanent molar was evaluated by KaVo DIAGNOdent. The effect of FD and FⅡ in toddler petied on demineralization of the first permanent molar was evaluated. Results Early demineralization of the first permanent molar in children without fluoride drop were more severe than that of children with fluoride drop in toddle period（ P 〈 0.01）. There was no signifieandy difference between demineralization of first permanent molar in children with fluoride ion infiltration and control group（P 〉 0.05）. Condusion Fluoride drop in toddle period can help the remineralization of newly erupted first permanent molar of children. There is no effect of fluoride ion infiltration on demineralization of newly erupted first permanent molar of children.