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European Archives of Paediatric Dentistry

, Volume 12, Issue 2, pp 90–92 | Cite as

Diode laser irradiation and fluoride uptake in human teeth

  • M. C. VitaleEmail author
  • D. Zaffe
  • A. R. Botticell
  • C. Caprioglio
Article

Abstract

AIM: To evaluate chemically the effects of diode laser on fluoride uptake before and after laser irradiation of enamel surfaces. METHODS: Crowns of 20 sound human teeth were halved and a 3x3mm acid-resistant varnish uncovered window left for: A) no treatment; B) fluoride (Elmex gel); C) diode (fluoride + diode laser); D) diode (diode laser + fluoride). The dental surfaces were analysed using a fluoride ion-selective electrode, in order to evaluate the fluoride treatment in combination with a diode laser. Also, to investigate laser-induced compositional changes (contents in F-) in enamel before/after laser irradiation and topical fluoride application. RESULTS: The mean ±SD of fluoride uptake of teeth of group A was 1.55 ± 0.89 mg/l. Mean fluoride uptake increased sevenfold after fluoride gel treatment: 10.51 ± 3.38 mg/l for group B, up to 15 times after gel and laser treatment: 23.62 ± 3.58 mg/l for group C and was 22.7 ± 4.60 mg/l for group D (diode laser before fluoride application). The Kruskal Wallis test indicated a statistically significant effect of fluoride uptake for all three treatments (p<0.001). The Student-Newman-Keuls multiple comparison test indicated a statistically significant increase of fluoride uptake before and after all treatments, and also a statistically significant difference for laser treatment versus fluoride gel. However, there was no statistically significance difference between laser groups. CONCLUSIONS: There is an enhanced capability of lasers to increase fluoride uptake of enamel and providing. protection to enamel surface from acid attack.

Key words

Enamel fluoride gel laser fluoride electrode 

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Copyright information

© European Archives of Paediatric Dentistry 2011

Authors and Affiliations

  • M. C. Vitale
    • 1
    Email author
  • D. Zaffe
    • 2
  • A. R. Botticell
    • 3
  • C. Caprioglio
    • 4
  1. 1.Dept. of Paediatric Dentistry Faculty of DentistryUniversity of PaviaPaviaItaly
  2. 2.Dept. of Human Pathology, School of DentistryUniversity of PaviaPaviaItaly
  3. 3.Dept. of Biomedical SciencesUniversity of Modena and Reggio EmiliaPaviaItaly
  4. 4.PaviaItaly

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