Tveit A B, Halse A
Acta Odontol Scand. 1982;40(1):35-43. doi: 10.3109/00016358209019807.
Sectioned root dentin surfaces were treated with either a NaF solution for 10 min or a fluoride varnish for 48 h and then exposed to 1 M acetate buffer pH 5.8 for 20 h. Microradiographs of non-fluoride treated specimens (controls) regularly showed a partially demineralized zone extending from the surface. The NaF-treated specimens exhibited a lesion with alternating radiopaque and radiolucent zones, which had a mean total depth equal to that of the controls. The varnish-treated specimens showed a demineralized zone which was significantly less deep than those observed in the two other groups. Elemental analyses performed by an electron microprobe showed a positive correlation between the amount of F incorporated and the acid resistance of the tissue.
将切片的牙根牙本质表面用氟化钠溶液处理10分钟或用氟化物清漆处理48小时，然后暴露于pH值为5.8的1M醋酸盐缓冲液中20小时。未进行氟处理的标本（对照）的显微放射照片经常显示出从表面延伸的部分脱矿质区域。经氟化钠处理的标本表现出具有交替的阻射和透射区域的病变，其平均总深度与对照相等。经清漆处理的标本显示出一个脱矿质区域，其深度明显小于其他两组中观察到的深度。通过电子微探针进行的元素分析表明，掺入的氟量与组织的耐酸性之间存在正相关。
