Effects of XeCl excimer lasers and fluoride application on artificial caries-like lesions

Petra B. B. Wilder-Smith; T. Phan; Lih-Huei L. Liaw; Michael W. Berns

doi:10.1117/12.184915

7 September 1994 Effects of XeCl excimer lasers and fluoride application on artificial caries-like lesions

Petra B. B. Wilder-Smith, T. Phan, Lih-Huei L. Liaw, Michael W. Berns

Proceedings Volume 2128, Laser Surgery: Advanced Characterization, Therapeutics, and Systems IV; (1994) https://doi.org/10.1117/12.184915
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

In this study the affects of a pulsed excimer laser emitting at 308 nm (XeCl) on enamel susceptibility to artificial caries-like lesions were investigated. Additional effects of fluoride (F) application were also studied and SEC examinations performed. Sixty-four extracted human molar teeth were coated with acid resistant varnish leaving four windows, then sectioned, leaving one window on each tooth quarter. The windows were treated in one of the following ways: untreated (control), or lased, or exposed to 4 min. APF (1.23% F) before lasing, or exposed to 4 min. APF (1.23% F) after lasing. After lasing, microhardness profiles were obtained and SEM was performed. Caries resistance was generally increased at moderate fluences. F application combined with lasing enhanced caries resistance at some parameters. SEM showed effects ranging from minimal to localized effects to extended glazing. Pulsed excimer laser irradiation, especially combined with topical F application can inhibit development of artificial caries-like lesions.

Citation Download Citation

Petra B. B. Wilder-Smith, T. Phan, Lih-Huei L. Liaw, and Michael W. Berns "Effects of XeCl excimer lasers and fluoride application on artificial caries-like lesions", Proc. SPIE 2128, Laser Surgery: Advanced Characterization, Therapeutics, and Systems IV, (7 September 1994); https://doi.org/10.1117/12.184915

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