The effect of diode laser irradiation associated with photoabsorbing agents containing remineralizing materials on microhardness, morphology and chemical structure of early enamel caries

Ahrari, F. and Mohammadipour, H. S. and Hajimomenian, L. and Fallah-Rastegar, A. (2018) The effect of diode laser irradiation associated with photoabsorbing agents containing remineralizing materials on microhardness, morphology and chemical structure of early enamel caries. Journal of Clinical and Experimental Dentistry, 10 (10). e955-e962.

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Abstract

Background: This study investigated the effects of laser irradiation associated with photo-absorbing agents containing sodium fluoride (NaF), MI paste Plus or Remin Pro® on microhardness and surface structure of white spot lesions (WSLs). Material and Methods: Fifty-six premolars were divided into two halves, then immersed in a demineraling solution to induce WSLs. The samples were divided into 8 groups by treatment (n=12): (1) control, (2) diode laser (810 nm, 500 mW, 90 s), (3) NaF, (4) MI Paste plus, (5) Remin Pro®, (6) NaF + Laser, (7) MI Paste Plus + Laser, (8) Remin Pro® + Laser. Microhardness was measured before and after remineralization treatments. Two samples from each group were selected for SEM analysis. Results: Microhardness increased significantly after all treatments with the exception of control, Laser and Remin Pro® groups (p > 0.05). ANOVA revealed no significant difference in initial microhardness (P=0.21), whereas a significant difference was noted after treatment (P=0.009). The application of sodium fluoride with or without laser irradiation produced the highest microhardness among the groups (p < 0.05). SEM analysis revealed some cracks on lased enamel and non-homogenous coatings of minerals after the use of remineralizing products. Conclusions: The use of NaF either alone or combined with laser irradiation was the most effecttive strategy for increasing microhardness of WSLs. The application of diode laser through photoabsorbing agents containing sodium fluoride or MI Paste Plus did not produce any additional effects in enhancing remineralization of WSLs, whereas the combined application of diode laser with Remin Pro® was effective. © Medicina Oral S. L. C.I.F.

Item Type: Article
Additional Information: Cited By :1 Export Date: 16 February 2020 Correspondence Address: Mohammadipour, H.-S.; Department of Restorative and Cosmetic Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Vakilabad Boulevard, Iran; email: Mohammadipourh@mums.ac.ir
Uncontrolled Keywords: Casein phosphopeptide amorphous calcium phosphate CPP-ACP Enamel caries Fluoride Hydroxyapatite Low level laser Microhardness Remineralization
Subjects: WU Dentistry. Oral surgery
Divisions: Mashhad University of Medical Sciences
Depositing User: lib2 lib2 lib2
Date Deposited: 10 Jun 2020 05:19
Last Modified: 10 Jun 2020 05:19
URI: http://eprints.mums.ac.ir/id/eprint/17175

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