Effect of Er: YAG Laser Irradiation and Acidulated Phosphate Fluoride Therapy on Re-Mineralization of White Spot Lesions

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ASSARZADEH HOSSEIN; KARRABI MALIHE; FEKRAZAD REZA; Tabarraei Yaser

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Journal Paper

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Journal: Journal of Dentistry Year:2021 | Volume:22 | Issue:3 Page(s): 153-161

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Title

Effect of Er: YAG Laser Irradiation and Acidulated Phosphate Fluoride Therapy on Re-Mineralization of White Spot Lesions

Author(s)

ASSARZADEH HOSSEIN | KARRABI MALIHE | FEKRAZAD REZA | Tabarraei Yaser | Issue Writer Certificate

Keywords

Er:YAG laser

Fluoride ion

Remineralization

White spot lesion

Abstract

Statement of the Problem: Studies on the efficacy of erbium laser for enhancement of enamel resistance to acid attacks and its effects on fluoride uptake by the enamel are limited. Purpose: This study sought to assess and compare the effects of erbium-doped yttrium alu-minum garnet (Er: YAG) laser irradiation and application of acidulated phosphate fluoride (APF) gel (alone and in combination) on Remineralization of artificial White spot lesions (WSLs). Materials and Method: This in vitro, experimental study evaluated 90 buccal and lingual slabs of extracted human premolars. The specimens underwent pH cycling to induce WSLs. They were then randomly divided into 6 groups of caries-free positive control (c+), negative control with WSLs (ws), 1. 23% APF gel applied on the enamel (F), Er: YAG laser irradiation (80 mJ, 10 Hz, and 8 J/cm2) of enamel (L), APF gel application followed by laser irradiation (FL), and laser irradiation followed by fluoride gel application (LF). The Fluoride ion content of specimens was measured before and after the intervention using a potentiometer. Data were analyzed by ANOVA (p< 0. 05). Results: APF gel application before/after laser irradiation maximally increased the fluoride uptake by the enamel (p= 0. 000). Application of APF gel in group F and laser irradiation in group L increased fluoride uptake by the enamel, compared with groups 1 and 2 (p= 0. 000). Laser-treated (L) and APF-treated (F) groups had no significant difference in this respect (p= 0. 945). Maximum fluoride concentration was noted in combined laser and fluoride groups (FL=332. 07ppm and LF=341. 27ppm) with no significant difference between the two (p= 1. 000). Conclusion: Er: YAG laser irradiation changes the chemical composition of enamel and probably promote its Remineralization, especially when combined with APF gel application, which highlights its cariostatic potential.

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APA: Copy

ASSARZADEH, HOSSEIN, KARRABI, MALIHE, & Tabarraei, Yaser. (2021). Effect of Er: YAG Laser Irradiation and Acidulated Phosphate Fluoride Therapy on Re-Mineralization of White Spot Lesions. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), 22(3), 153-161. SID. https://sid.ir/paper/978455/en

Vancouver: Copy

ASSARZADEH HOSSEIN, KARRABI MALIHE, Tabarraei Yaser. Effect of Er: YAG Laser Irradiation and Acidulated Phosphate Fluoride Therapy on Re-Mineralization of White Spot Lesions. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2021;22(3):153-161. Available from: https://sid.ir/paper/978455/en

IEEE: Copy

HOSSEIN ASSARZADEH, MALIHE KARRABI, and Yaser Tabarraei, “Effect of Er: YAG Laser Irradiation and Acidulated Phosphate Fluoride Therapy on Re-Mineralization of White Spot Lesions,” JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), vol. 22, no. 3, pp. 153–161, 2021, [Online]. Available: https://sid.ir/paper/978455/en

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