Dhull K S, Nandlal B
Department of Pedodontics and Preventive Dentistry, Institute of Dental Sciences, Bhubaneswar - 751 003, Orissa, India.
J Indian Soc Pedod Prev Dent. 2011 Jan-Mar;29(1):39-45. doi: 10.4103/0970-4388.79930.
To determine the effect of low-concentration daily topical fluoride application on fluoride release of Giomer and Compomer and to compare the amount of fluoride release from Giomer to that of Compomer.
Forty-eight specimens of each Giomer and Compomer were divided into four treatment groups, namely, control group, fluoridated dentifrice (500 ppm) once-daily group, fluoridated dentifrice (500 ppm) twice-daily group and fluoridated dentifrice (500 ppm) once-daily + fluoridated mouthwash (225 ppm) group. Each specimen was suspended in demineralising solution for 6 h and remineralising solution for 18 h. Fluoride release was measured in both the demineralising solution and the remineralising solution daily for 21 days. Total daily fluoride release for each specimen was calculated by adding the amount released in the demineralising solution to that released in the remineralising solution.
The fluoride release (ppm) was found to be higher in Giomer when compared with Compomer. The fluoride released from Giomer and Compomer was significantly higher in the acidic demineralising solution than in the neutral remineralising solution. It was found that increasing fluoride exposure significantly increased fluoride release from Giomer and Compomer. It was found that the fluoride release from the subgroups of Giomer and Compomer was in the following order: fluoridated dentifrice twice-daily > fluoridated dentifrice once-daily + fluoridated mouthwash > fluoridated dentifrice once-daily > control group. It was found that Giomer showed a greater fluoride uptake Compomer.
确定每日局部应用低浓度氟化物对聚硅氧烷增强型玻璃离子粘固剂（Giomer）和复合体（Compomer）氟释放的影响，并比较Giomer和Compomer的氟释放量。
将Giomer和Compomer各48个样本分为四个治疗组，即对照组、含氟牙膏（500 ppm）每日一次组、含氟牙膏（500 ppm）每日两次组和含氟牙膏（500 ppm）每日一次 + 含氟漱口水（225 ppm）组。每个样本在脱矿溶液中悬浮6小时，在再矿化溶液中悬浮18小时。在21天内每天测量脱矿溶液和再矿化溶液中的氟释放量。通过将脱矿溶液中释放的量与再矿化溶液中释放的量相加，计算每个样本的每日总氟释放量。
发现Giomer的氟释放量（ppm）高于Compomer。Giomer和Compomer在酸性脱矿溶液中释放的氟明显高于中性再矿化溶液。发现增加氟暴露量可显著增加Giomer和Compomer的氟释放量。发现Giomer和Compomer各亚组的氟释放顺序如下：含氟牙膏每日两次 > 含氟牙膏每日一次 + 含氟漱口水 > 含氟牙膏每日一次 > 对照组。发现Giomer比Compomer表现出更大的氟摄取量。
