Cruz R, Rølla G, Ogaard B
Department of Preventive Dentistry, Faculty of Dentistry, State University of Rio de Janeiro, Brazil.
Acta Odontol Scand. 1994 Apr;52(2):72-6. doi: 10.3109/00016359409029057.
Enamel specimens from unerupted third molars were treated with the supernatant of monofluorophosphate (MFP)-containing toothpaste slurries in water. Calcium fluoride-like particles were formed on the enamel surface during a 24-h exposure. The globules were soluble in alkali. More particles were seen on enamel treated with a toothpaste containing both MFP and NaF. The experiments showed that the calcium fluoride-like material formed on enamel after treatment with MFP-containing toothpaste probably originates from the free fluoride present in the pastes. The relatively moderate deposition of fluoride may be of clinical significance because the teeth are so frequently exposed to toothpaste. No firmly bound fluoride was found on treatment of enamel with MFP-containing toothpaste.
将未萌出的第三磨牙的牙釉质样本用含单氟磷酸钠（MFP）的牙膏在水中制成的浆液上清液进行处理。在24小时的暴露过程中，牙釉质表面形成了类似氟化钙的颗粒。这些小球可溶于碱。在用同时含有MFP和NaF的牙膏处理的牙釉质上可以看到更多颗粒。实验表明，用含MFP的牙膏处理后在牙釉质上形成的类似氟化钙的物质可能源自牙膏中存在的游离氟。氟化物相对适度的沉积可能具有临床意义，因为牙齿经常接触牙膏。在用含MFP的牙膏处理牙釉质时未发现牢固结合的氟化物。
