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Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin
Background: This study sought to assess the effect of Er,Cr:YSGG laser power on the surface roughness of lased radicular dentin using atomic force microscopy (AFM). Methods: Fifteen human radicular dentin samples were randomly divided into five groups: one control (G1, intact) and four experimental...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Tabriz University of Medical Sciences
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6076886/ https://www.ncbi.nlm.nih.gov/pubmed/30087757 http://dx.doi.org/10.15171/joddd.2018.013 |
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author | Hosseinipour, Zohre Sadat Pirmoradian-najafabadi, Maryam Shahabi, Sima |
author_facet | Hosseinipour, Zohre Sadat Pirmoradian-najafabadi, Maryam Shahabi, Sima |
author_sort | Hosseinipour, Zohre Sadat |
collection | PubMed |
description | Background: This study sought to assess the effect of Er,Cr:YSGG laser power on the surface roughness of lased radicular dentin using atomic force microscopy (AFM). Methods: Fifteen human radicular dentin samples were randomly divided into five groups: one control (G1, intact) and four experimental groups treated with 0.25W (G2), 0.5W (G3), 0.75W (G4) and 1W (G5) powers of Er,Cr:YSGG laser (2.78µm) at a repetition rate of 20 Hz, with a 600-µm-diameter sapphire tip. After irradiation, surface topography was analyzed by AFM using a Si probe in tapping mode. Quantitative information concerning the arithmetic average roughness (Ra) and quadratic mean roughness (Rq) was obtained from three 5×5µm areas of each sample. The data were analyzed using one-way ANOVA (P<0.05). Results: The Ra and Rq values increased in G2 and G5 and decreased in G3 and G4 groups compared to the control group. The maximum Ra and Rq values were noted in G5, which were significantly higher than the corresponding values in G3 (P<0.05). Conclusion: No direct correlation was found between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin. Laser therapy with a mean power of 0.5W and 1W caused the lowest and highest surface roughness, respectively. |
format | Online Article Text |
id | pubmed-6076886 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Tabriz University of Medical Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-60768862018-08-07 Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin Hosseinipour, Zohre Sadat Pirmoradian-najafabadi, Maryam Shahabi, Sima J Dent Res Dent Clin Dent Prospects Original Article Background: This study sought to assess the effect of Er,Cr:YSGG laser power on the surface roughness of lased radicular dentin using atomic force microscopy (AFM). Methods: Fifteen human radicular dentin samples were randomly divided into five groups: one control (G1, intact) and four experimental groups treated with 0.25W (G2), 0.5W (G3), 0.75W (G4) and 1W (G5) powers of Er,Cr:YSGG laser (2.78µm) at a repetition rate of 20 Hz, with a 600-µm-diameter sapphire tip. After irradiation, surface topography was analyzed by AFM using a Si probe in tapping mode. Quantitative information concerning the arithmetic average roughness (Ra) and quadratic mean roughness (Rq) was obtained from three 5×5µm areas of each sample. The data were analyzed using one-way ANOVA (P<0.05). Results: The Ra and Rq values increased in G2 and G5 and decreased in G3 and G4 groups compared to the control group. The maximum Ra and Rq values were noted in G5, which were significantly higher than the corresponding values in G3 (P<0.05). Conclusion: No direct correlation was found between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin. Laser therapy with a mean power of 0.5W and 1W caused the lowest and highest surface roughness, respectively. Tabriz University of Medical Sciences 2018 2018-06-20 /pmc/articles/PMC6076886/ /pubmed/30087757 http://dx.doi.org/10.15171/joddd.2018.013 Text en © 2018 Hosseinipour et al. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article published and distributed by Tabriz University of Medical Sciences under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Hosseinipour, Zohre Sadat Pirmoradian-najafabadi, Maryam Shahabi, Sima Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin |
title | Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin |
title_full | Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin |
title_fullStr | Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin |
title_full_unstemmed | Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin |
title_short | Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin |
title_sort | relationship between er,cr:ysgg laser power and surface roughness of lased radicular dentin |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6076886/ https://www.ncbi.nlm.nih.gov/pubmed/30087757 http://dx.doi.org/10.15171/joddd.2018.013 |
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