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 surface roughness of lased radicular dentin using atomic force microscopy (AFM). Methods. Fifteen human radicular dentin samples were randomly assigned to five groups: one control (G1, intact) and four experimental group...
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| Format: | Article |
| Language: | English |
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Tabriz University of Medical Sciences
2018-06-01
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| Series: | Journal of Dental Research, Dental Clinics, Dental Prospects |
| Subjects: | |
| Online Access: | http://joddd.tbzmed.ac.ir/PDF/joddd-12-83.pdf |
| _version_ | 1818276330086596608 |
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| author | Zohre Sadat Hosseinipour Maryam Pirmoradian-najafabadi Sima Shahabi |
| author_facet | Zohre Sadat Hosseinipour Maryam Pirmoradian-najafabadi Sima Shahabi |
| author_sort | Zohre Sadat Hosseinipour |
| collection | DOAJ |
| description | Background. This study sought to assess the effect of Er,Cr:YSGG laser power on surface roughness of lased radicular dentin using atomic force microscopy (AFM). Methods. Fifteen human radicular dentin samples were randomly assigned to five groups: one control (G1, intact) and four experimental groups treated with 0.25-W (G2), 0.5-W (G3), 0.75-W (G4) and 1-W (G5) powers of Er,Cr:YSGG laser (2780 nm, 20 Hz, sapphire tip with 600-µm-diameter). After laser irradiation, surface topography was evaluated using AFM with a Si probe in tapping mode. Quantitative data regarding the arithmetic average roughness (Ra) and quadratic mean roughness (Rq) were obtained from three 5×5-µm areas of each sample. Data analysis was performed 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 0.5 W and 1 W resulted in the lowest and highest surface roughness, respectively. Key words: Atomic force microscopy (AFM), dentin, lasers, tooth root. |
| first_indexed | 2024-12-12T22:43:56Z |
| format | Article |
| id | doaj.art-d6fbf7f92cb948168576e7127a07d2fe |
| institution | Directory Open Access Journal |
| issn | 2008-210X 2008-2118 |
| language | English |
| last_indexed | 2024-12-12T22:43:56Z |
| publishDate | 2018-06-01 |
| publisher | Tabriz University of Medical Sciences |
| record_format | Article |
| series | Journal of Dental Research, Dental Clinics, Dental Prospects |
| spelling | doaj.art-d6fbf7f92cb948168576e7127a07d2fe2022-12-22T00:09:16ZengTabriz University of Medical SciencesJournal of Dental Research, Dental Clinics, Dental Prospects2008-210X2008-21182018-06-01122839010.15171/joddd.2018.013joddd-15563Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentinZohre Sadat HosseinipourMaryam Pirmoradian-najafabadiSima ShahabiBackground. This study sought to assess the effect of Er,Cr:YSGG laser power on surface roughness of lased radicular dentin using atomic force microscopy (AFM). Methods. Fifteen human radicular dentin samples were randomly assigned to five groups: one control (G1, intact) and four experimental groups treated with 0.25-W (G2), 0.5-W (G3), 0.75-W (G4) and 1-W (G5) powers of Er,Cr:YSGG laser (2780 nm, 20 Hz, sapphire tip with 600-µm-diameter). After laser irradiation, surface topography was evaluated using AFM with a Si probe in tapping mode. Quantitative data regarding the arithmetic average roughness (Ra) and quadratic mean roughness (Rq) were obtained from three 5×5-µm areas of each sample. Data analysis was performed 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 0.5 W and 1 W resulted in the lowest and highest surface roughness, respectively. Key words: Atomic force microscopy (AFM), dentin, lasers, tooth root.http://joddd.tbzmed.ac.ir/PDF/joddd-12-83.pdfAtomic force microscopy (AFM)DentinLasersTooth Root |
| spellingShingle | Zohre Sadat Hosseinipour Maryam Pirmoradian-najafabadi Sima Shahabi Relationship between Er,Cr:YSGG laser power and surface roughness of lased radicular dentin Journal of Dental Research, Dental Clinics, Dental Prospects Atomic force microscopy (AFM) Dentin Lasers Tooth Root |
| 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 | Atomic force microscopy (AFM) Dentin Lasers Tooth Root |
| url | http://joddd.tbzmed.ac.ir/PDF/joddd-12-83.pdf |
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