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Interaction effect of Nd:YAG laser and universal adhesive system for dentin sealing
BACKGROUND: To evaluate the influence of the association of the universal adhesive system to different energy densities of the Nd:YAG laser on the hydraulic conductance of dentin. MATERIAL AND METHODS: Fifty bovine dentin discs were made. The samples were stratified into four groups (n = 10) accordi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Medicina Oral S.L.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7700791/ https://www.ncbi.nlm.nih.gov/pubmed/33282132 http://dx.doi.org/10.4317/jced.57306 |
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author | Penha, Karla-Janilee-de Souza Torres, Carlos-Rocha-Gomes Tavarez, Rudys-Rodolfo-De Jesus Firoozmand, Leily-Macedo |
author_facet | Penha, Karla-Janilee-de Souza Torres, Carlos-Rocha-Gomes Tavarez, Rudys-Rodolfo-De Jesus Firoozmand, Leily-Macedo |
author_sort | Penha, Karla-Janilee-de Souza |
collection | PubMed |
description | BACKGROUND: To evaluate the influence of the association of the universal adhesive system to different energy densities of the Nd:YAG laser on the hydraulic conductance of dentin. MATERIAL AND METHODS: Fifty bovine dentin discs were made. The samples were stratified into four groups (n = 10) according to the treatment performed; SBU- Adper Single Bond Universal (3M ESPE), SBU_60 - SBU associated with the Nd:YAG laser (60mJ, 10Hz, 0.6W - 47.77 J / cm²), SBU_80 - SBU associated with the Nd:YAG laser (80mJ, 10Hz, 0.8 W - 63.69 J / cm2) and C – dentin without treatment (smear layer). Hydraulic conductance measurements were taken 24 hours after the treatments (HC1) and after erosive challenge (HC2). Scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDX) helped to visualize the dentin after the different treatments. Scheffe and Games-Howell statistical tests were used to analyze hydraulic conductance (α = 0.05). RESULTS: The treated dentin (SBU, SBU_60, and SBU_80) reduced HC1 when compared to dentin with smear layer (C) (p< 0.001). The erosive challenge has increased HC2 in SBU_60 and C (p< 0.001), and did not promote a significant difference in SBU_80 and SBU. The SEM / EDX analyzes showed an irregular and semi-permeable barrier on the surfaces of the treated dentin. CONCLUSIONS: The association of universal adhesive with Nd:YAG can be an effective alternative for the occlusion of dentinal tubules, whereas higher energy per pulse Nd:YAG (SBU_80) can increase the resistance to permeability when exposed to the erosive challenge. Key words:Dentin, permeability of dentin, Nd:YAG Laser, adhesives. |
format | Online Article Text |
id | pubmed-7700791 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Medicina Oral S.L. |
record_format | MEDLINE/PubMed |
spelling | pubmed-77007912020-12-04 Interaction effect of Nd:YAG laser and universal adhesive system for dentin sealing Penha, Karla-Janilee-de Souza Torres, Carlos-Rocha-Gomes Tavarez, Rudys-Rodolfo-De Jesus Firoozmand, Leily-Macedo J Clin Exp Dent Research BACKGROUND: To evaluate the influence of the association of the universal adhesive system to different energy densities of the Nd:YAG laser on the hydraulic conductance of dentin. MATERIAL AND METHODS: Fifty bovine dentin discs were made. The samples were stratified into four groups (n = 10) according to the treatment performed; SBU- Adper Single Bond Universal (3M ESPE), SBU_60 - SBU associated with the Nd:YAG laser (60mJ, 10Hz, 0.6W - 47.77 J / cm²), SBU_80 - SBU associated with the Nd:YAG laser (80mJ, 10Hz, 0.8 W - 63.69 J / cm2) and C – dentin without treatment (smear layer). Hydraulic conductance measurements were taken 24 hours after the treatments (HC1) and after erosive challenge (HC2). Scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDX) helped to visualize the dentin after the different treatments. Scheffe and Games-Howell statistical tests were used to analyze hydraulic conductance (α = 0.05). RESULTS: The treated dentin (SBU, SBU_60, and SBU_80) reduced HC1 when compared to dentin with smear layer (C) (p< 0.001). The erosive challenge has increased HC2 in SBU_60 and C (p< 0.001), and did not promote a significant difference in SBU_80 and SBU. The SEM / EDX analyzes showed an irregular and semi-permeable barrier on the surfaces of the treated dentin. CONCLUSIONS: The association of universal adhesive with Nd:YAG can be an effective alternative for the occlusion of dentinal tubules, whereas higher energy per pulse Nd:YAG (SBU_80) can increase the resistance to permeability when exposed to the erosive challenge. Key words:Dentin, permeability of dentin, Nd:YAG Laser, adhesives. Medicina Oral S.L. 2020-12-01 /pmc/articles/PMC7700791/ /pubmed/33282132 http://dx.doi.org/10.4317/jced.57306 Text en Copyright: © 2020 Medicina Oral S.L. http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Penha, Karla-Janilee-de Souza Torres, Carlos-Rocha-Gomes Tavarez, Rudys-Rodolfo-De Jesus Firoozmand, Leily-Macedo Interaction effect of Nd:YAG laser and universal adhesive system for dentin sealing |
title | Interaction effect of Nd:YAG laser and universal adhesive system for dentin sealing |
title_full | Interaction effect of Nd:YAG laser and universal adhesive system for dentin sealing |
title_fullStr | Interaction effect of Nd:YAG laser and universal adhesive system for dentin sealing |
title_full_unstemmed | Interaction effect of Nd:YAG laser and universal adhesive system for dentin sealing |
title_short | Interaction effect of Nd:YAG laser and universal adhesive system for dentin sealing |
title_sort | interaction effect of nd:yag laser and universal adhesive system for dentin sealing |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7700791/ https://www.ncbi.nlm.nih.gov/pubmed/33282132 http://dx.doi.org/10.4317/jced.57306 |
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