Association of Nd:YAG laser and calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion
Abstract Objective To evaluate the efficacy of Nd:YAG laser associated with calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion after erosive/abrasive challenges. Methodology Dentin specimens were exposed to 17% ethylene diamine tetra-acetic acid (EDTA) solution for 5 min and randomly allocated into five groups: G1, control (no treatment); G2, Nd:YAG laser (1 W, 10 Hz, 100 mJ, 85 J/cm2); G3, Laser + TeethmateTM Desensitizer; G4, Laser + Desensibilize Nano P; and G5, Laser+Nupro®. Specimens underwent a 5-day erosion-abrasion cycling. Hydraulic conductance was measured post-EDTA, post-treatment, and post-cycling. Post-treatment and post-cycling permeability (%Lp) was calculated based on post-EDTA measurements, considered 100%. Open dentin tubules (ODT) were calculated at the abovementioned experimental moments using scanning electron microscopy and ImageJ software (n=10). Data were analyzed using two-way repeated measures ANOVA and Tukey’s test (α=0.05). Results G1 presented the highest %Lp post-treatment of all groups (p<0.05), without significantly differences among them. At post-cycling, %Lp significantly decreased in G1, showed no significant differences from post-treatment in G3 and G4, and increased in G2 and G5, without significant differences from G1 (p>0.05). We found no significant differences in ODT among groups (p>0.05) post-EDTA. At post-treatment, treated groups did not differ from each other, but presented lower ODT than G1 (p<0.001). As for post-cycling, we verified no differences among groups (p>0.05), although ODT was significantly lower for all groups when compared to post-EDTA values (p<0.001). Conclusion All treatments effectively reduced dentin permeability and promoted tubule occlusion after application. Combining Nd YAG laser with calcium-phosphate pastes did not improve the laser effect. After erosive-abrasive challenges, treatments presented no differences when compared to the control.
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Faculdade De Odontologia De Bauru - USP
2021
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oai:scielo:S1678-775720210001004122021-03-29Association of Nd:YAG laser and calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusionMAXIMIANO,ViníciusMACHADO,Alana CristinaLOPES,Raquel MariannaRABELO,Fernanda Ellen MercatelliGARÓFALO,Stephanie AssimakopoulosZEZELL,Denise MariaARANHA,Ana Cecilia CorrêaSCARAMUCCI,Taís Dentin hypersensitivity Laser Desensitizing agents Abstract Objective To evaluate the efficacy of Nd:YAG laser associated with calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion after erosive/abrasive challenges. Methodology Dentin specimens were exposed to 17% ethylene diamine tetra-acetic acid (EDTA) solution for 5 min and randomly allocated into five groups: G1, control (no treatment); G2, Nd:YAG laser (1 W, 10 Hz, 100 mJ, 85 J/cm2); G3, Laser + TeethmateTM Desensitizer; G4, Laser + Desensibilize Nano P; and G5, Laser+Nupro®. Specimens underwent a 5-day erosion-abrasion cycling. Hydraulic conductance was measured post-EDTA, post-treatment, and post-cycling. Post-treatment and post-cycling permeability (%Lp) was calculated based on post-EDTA measurements, considered 100%. Open dentin tubules (ODT) were calculated at the abovementioned experimental moments using scanning electron microscopy and ImageJ software (n=10). Data were analyzed using two-way repeated measures ANOVA and Tukey’s test (α=0.05). Results G1 presented the highest %Lp post-treatment of all groups (p<0.05), without significantly differences among them. At post-cycling, %Lp significantly decreased in G1, showed no significant differences from post-treatment in G3 and G4, and increased in G2 and G5, without significant differences from G1 (p>0.05). We found no significant differences in ODT among groups (p>0.05) post-EDTA. At post-treatment, treated groups did not differ from each other, but presented lower ODT than G1 (p<0.001). As for post-cycling, we verified no differences among groups (p>0.05), although ODT was significantly lower for all groups when compared to post-EDTA values (p<0.001). Conclusion All treatments effectively reduced dentin permeability and promoted tubule occlusion after application. Combining Nd YAG laser with calcium-phosphate pastes did not improve the laser effect. After erosive-abrasive challenges, treatments presented no differences when compared to the control.info:eu-repo/semantics/openAccessFaculdade De Odontologia De Bauru - USPJournal of Applied Oral Science v.29 20212021-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572021000100412en10.1590/1678-7757-2020-0736 |
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MAXIMIANO,Vinícius MACHADO,Alana Cristina LOPES,Raquel Marianna RABELO,Fernanda Ellen Mercatelli GARÓFALO,Stephanie Assimakopoulos ZEZELL,Denise Maria ARANHA,Ana Cecilia Corrêa SCARAMUCCI,Taís |
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MAXIMIANO,Vinícius MACHADO,Alana Cristina LOPES,Raquel Marianna RABELO,Fernanda Ellen Mercatelli GARÓFALO,Stephanie Assimakopoulos ZEZELL,Denise Maria ARANHA,Ana Cecilia Corrêa SCARAMUCCI,Taís Association of Nd:YAG laser and calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion |
author_facet |
MAXIMIANO,Vinícius MACHADO,Alana Cristina LOPES,Raquel Marianna RABELO,Fernanda Ellen Mercatelli GARÓFALO,Stephanie Assimakopoulos ZEZELL,Denise Maria ARANHA,Ana Cecilia Corrêa SCARAMUCCI,Taís |
author_sort |
MAXIMIANO,Vinícius |
title |
Association of Nd:YAG laser and calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion |
title_short |
Association of Nd:YAG laser and calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion |
title_full |
Association of Nd:YAG laser and calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion |
title_fullStr |
Association of Nd:YAG laser and calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion |
title_full_unstemmed |
Association of Nd:YAG laser and calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion |
title_sort |
association of nd:yag laser and calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion |
description |
Abstract Objective To evaluate the efficacy of Nd:YAG laser associated with calcium-phosphate desensitizing pastes on dentin permeability and tubule occlusion after erosive/abrasive challenges. Methodology Dentin specimens were exposed to 17% ethylene diamine tetra-acetic acid (EDTA) solution for 5 min and randomly allocated into five groups: G1, control (no treatment); G2, Nd:YAG laser (1 W, 10 Hz, 100 mJ, 85 J/cm2); G3, Laser + TeethmateTM Desensitizer; G4, Laser + Desensibilize Nano P; and G5, Laser+Nupro®. Specimens underwent a 5-day erosion-abrasion cycling. Hydraulic conductance was measured post-EDTA, post-treatment, and post-cycling. Post-treatment and post-cycling permeability (%Lp) was calculated based on post-EDTA measurements, considered 100%. Open dentin tubules (ODT) were calculated at the abovementioned experimental moments using scanning electron microscopy and ImageJ software (n=10). Data were analyzed using two-way repeated measures ANOVA and Tukey’s test (α=0.05). Results G1 presented the highest %Lp post-treatment of all groups (p<0.05), without significantly differences among them. At post-cycling, %Lp significantly decreased in G1, showed no significant differences from post-treatment in G3 and G4, and increased in G2 and G5, without significant differences from G1 (p>0.05). We found no significant differences in ODT among groups (p>0.05) post-EDTA. At post-treatment, treated groups did not differ from each other, but presented lower ODT than G1 (p<0.001). As for post-cycling, we verified no differences among groups (p>0.05), although ODT was significantly lower for all groups when compared to post-EDTA values (p<0.001). Conclusion All treatments effectively reduced dentin permeability and promoted tubule occlusion after application. Combining Nd YAG laser with calcium-phosphate pastes did not improve the laser effect. After erosive-abrasive challenges, treatments presented no differences when compared to the control. |
publisher |
Faculdade De Odontologia De Bauru - USP |
publishDate |
2021 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572021000100412 |
work_keys_str_mv |
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