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Effect of Er:YAG Laser Irradiation and Acidulated Phosphate Fluoride Therapy on Re-Mineralization of White Spot Lesions | ||
| Journal of Dentistry | ||
| مقاله 1، دوره 22، شماره 3 - شماره پیاپی 72، آذر 2021، صفحه 153-161 اصل مقاله (401.88 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.30476/dentjods.2020.86300.1187 | ||
| نویسندگان | ||
| Hossein Assarzadeh1؛ Malihe Karrabi* 1؛ Reza Fekrazad2؛ Yaser Tabarraei3 | ||
| 1Dept. of Oral and Prosthodontics, School of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran. | ||
| 2Dept. of Periodontology, Dental Faculty, Laser Research Center In Medical Sciences, AJA University of Medical Sciences, Tehran, Iran. Radiation Science Research Center, Laser Research Center in Medical Science, AJA University of Medical Sciences, Tehran, Iran. International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), University Scientific Education and Research Network (USERN), Tehran, Iran. | ||
| 3Dept. of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. | ||
| چکیده | ||
| 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 aluminum 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. | ||
| کلیدواژه‌ها | ||
| Er:YAG laser؛ Fluoride ion؛ Remineralization؛ White spot lesion | ||
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| مراجع | ||
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