The Protective Effect of TiF4, SnF2 and NaF against Erosion-Like Lesions in situ

• Published in: Caries research Vol. 42; no. 1; pp. 68 - 72
• Main Authors: Hove, L.H., Holme, B., Young, A., Tveit, A.B.
• Format: Journal Article
• Language: English
• Published: Basel, Switzerland S. Karger AG 01.01.2008
• Subjects: Adult; Cariostatic Agents - therapeutic use; Dental Enamel; Female; Fluorides - therapeutic use; Gastroesophageal Reflux - complications; Humans; Hydrochloric Acid - adverse effects; Interferometry; Male; Middle Aged; Original Paper; Sodium Fluoride - therapeutic use; Tin Fluorides - therapeutic use; Titanium - therapeutic use; Tooth Erosion - etiology; Tooth Erosion - prevention & control; Hydrochloric acid; Dental erosion, in situ; Fluoride; White light interferometry
• ISSN: 0008-6568; 1421-976X
• DOI: 10.1159/000112816

The aim of this in situ study was to compare the protective effect of TiF 4 , SnF 2 and NaF on the development of erosion-like lesions in human enamel. Fourteen human molars were each divided into 4 specimens, mounted on acrylic mouth appliances and worn by 7 volunteers for 9 days. In order to mimic a feasible treatment procedure for patients with voluntary or involuntary gastric reflux, the specimens were etched for 2 min twice a day (0.01 M HCl) and fluoride applications were performed every third day (2 min). The controls were treated as the other specimens except for the fluoride applications. Etch depths and surface roughness changes (R q ) were measured by white light interferometry. Compared with the control, TiF 4 and SnF 2 reduced the etching depth by 100% (p < 0.001) and 91% (p < 0.001), respectively, and both treatments resulted in an observable surface layer. NaF had no significant protective effect (p = 0.46). It can be concluded that although SnF 2 provided significant protection for the enamel surfaces, TiF 4 showed the best protection against acid attack, while NaF had no significant protective effect in this study.