The Protective Effect of TiF<sub>4</sub>, SnF<sub>2</sub> and NaF against Erosion-Like Lesions in situ

Vol. 42, No. 1, 2008

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Original Paper

The Protective Effect of TiF₄, SnF₂ and NaF against Erosion-Like Lesions in situ
L.H. Hove^a, B. Holme^{b, c}, A. Young^a, A.B. Tveit^a

^aFaculty of Dentistry and
^bDepartment of Physics, University of Oslo, and
^cSINTEF Materials and Chemistry, Oslo, Norway

Address of Corresponding Author

Caries Res 2008;42:68-72 (DOI: 10.1159/000112816)

Key Words

Dental erosion, in situ
Fluoride
Hydrochloric acid
White light interferometry

Abstract

The aim of this in situ study was to compare the protective effect of TiF₄, SnF₂ 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, TiF₄ and SnF₂ 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 SnF₂ provided significant protection for the enamel surfaces, TiF₄ showed the best protection against acid attack, while NaF had no significant protective effect in this study.

Author Contacts

Lene Hystad Hove
Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo
Box 1109 Blindern
NO-0317 Oslo (Norway)
Tel. +47 228 521 42, Fax +47 228 523 44, E-Mail lenehh@odont.uio.no

Article Information

Received: May 3, 2007
Accepted after revision: October 25, 2007
Published online: December 21, 2007
Number of Print Pages : 5
Number of Figures : 1, Number of Tables : 0, Number of References : 22

Medline Abstract (ID 18160812)

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