Delbem Alberto Carlos Botazzo, Bergamaschi Maurício, Sassaki Kikue Takebayashi, Cunha Robson Frederico
UNESP - São Paulo State University, Araçatuba Dental School - Department of Pediatric Dentistry, SP, Brazil.
J Appl Oral Sci. 2006 Apr;14(2):88-92. doi: 10.1590/s1678-77572006000200005.
In the present investigation, the anticariogenic effect of fluoride released by two products commonly applied in infants was evaluated.
Bovine sound enamel blocks were randomly allocated to each one of the treatment groups: control (C), varnish (V) and diamine silver fluoride solution (D). The blocks were submitted to pH cycles in an oven at 37 degrees C. Next, surface and cross-sectional microhardness were assessed to calculate the percentage loss of surface microhardness (%SML) and the mineral loss (deltaZ). The fluoride present in enamel was also determined.
F/Px10(-3) (ANOVA, p<0.05) in the 1st layer of enamel before pH-cycling were (C, V and D): 1.61; 21.59 and 3.98. The %SMH (Kruskal-Wallis, p<0.05) were: -64.0, -45.2 and -53.1. %deltaZ values (ANOVA, p<0.05) were: -18.7 feminine, -7.7 and -17.3 feminine.
The data suggested that the fluoride released by varnish showed greater interaction with sound enamel and provided less mineral loss when compared with silver diamine solution.
在本研究中，评估了两种常用于婴儿的产品释放的氟化物的防龋效果。
将牛健康釉质块随机分配到各治疗组：对照组（C）、清漆组（V）和二胺氟化银溶液组（D）。将这些块在37摄氏度的烤箱中进行pH循环处理。接下来，评估表面和横截面显微硬度，以计算表面显微硬度损失百分比（%SML）和矿物质损失（δZ）。还测定了釉质中存在的氟化物。
pH循环处理前釉质第一层中的F/Px10(-3)（方差分析，p<0.05）分别为（C、V和D）：1.61；21.59和3.98。%SMH（Kruskal-Wallis检验，p<0.05）分别为：-64.0、-45.2和-53.1。%δZ值（方差分析，p<0.05）分别为：-18.7阴性、-7.7和-17.3阴性。
数据表明，与二胺银溶液相比，清漆释放的氟化物与健康釉质的相互作用更强，矿物质损失更少。
