Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization

Detalhes bibliográficos
Autor(a) principal: Zezell, Denise M.
Data de Publicação: 2019
Outros Autores: Silva, Mateus R. [UNESP], Castro, Pedro A.A., Silva, Tânia M. [UNESP], Goncalves, Sergio E.P. [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1117/12.2527213
http://hdl.handle.net/11449/198822
Resumo: Nd:YAG-laser associated to a photoabsorber, in the reduction of artificial caries in enamel was evaluated. Eighty bovine specimens with 6mm diameter and 2mm high were obtained and a half of the surface of each was protected as a control. Microdurometer and FTIR were performed initially and 8 groups (n=10) were obtained according to treatments: G1(control): no-treatment; G2(+control): fluorophosphate; G3(Nd:YAG 60mJ/pulse, 10Hz, 48J/cm2, non-contact); G4(photoabsorber + Nd:YAG 60mJ); G5(Nd:YAG 80mJ/pulse, 10Hz, 64J/cm2); G6(photoabsorber + Nd:YAG 80mJ); G7(Nd:YAG 100mJ/pulse, 10Hz, 80J/cm2); G8(photoabsorber + Nd:YAG 100mJ). De-remineralization cycle were performed for induction of artificial caries and to interferometer, microdurometer and FTIR. Microhardness data were submitted to 2-way ANOVA and Tukey/Dunnett tests 5%. Statistically differences were obtained in the photoabsorber-factor individually and in the interaction between laser and photoabsorber. There was a lower percentage of microhardness loss in the groups with photoabsorber; G8 presented microhardness similar to G2. FTIR data were submitted to T-test 5%. Compared with G2, higher concentrations of carbonate were found in G4, G6 and G8; phosphate in G8; lower Amide-I concentration at G8 and higher Carbonate/Phosphate ratio at G4 and G6. The interferometry results were submitted to 3-way ANOVA of repeated measures 5%. There were statistically differences in the photoabsorber-factor individually and in the time-factor. Photoabsorber decreased the demineralization; Nd:YAG-laser without photoabsorber were less effective than fluoride; Nd:YAG-laser 100mJ with photoabsorber was as effective as fluoride and; the Nd:YAG-laser, associated or not to the photoabsorber, was no more effective than fluoride in the reduction of artificial decay.
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spelling Nd:YAG laser on dental enamel in the reduction of artificial caries demineralizationCariesDemineralizationEnamelLaserPhotoabsorberNd:YAG-laser associated to a photoabsorber, in the reduction of artificial caries in enamel was evaluated. Eighty bovine specimens with 6mm diameter and 2mm high were obtained and a half of the surface of each was protected as a control. Microdurometer and FTIR were performed initially and 8 groups (n=10) were obtained according to treatments: G1(control): no-treatment; G2(+control): fluorophosphate; G3(Nd:YAG 60mJ/pulse, 10Hz, 48J/cm2, non-contact); G4(photoabsorber + Nd:YAG 60mJ); G5(Nd:YAG 80mJ/pulse, 10Hz, 64J/cm2); G6(photoabsorber + Nd:YAG 80mJ); G7(Nd:YAG 100mJ/pulse, 10Hz, 80J/cm2); G8(photoabsorber + Nd:YAG 100mJ). De-remineralization cycle were performed for induction of artificial caries and to interferometer, microdurometer and FTIR. Microhardness data were submitted to 2-way ANOVA and Tukey/Dunnett tests 5%. Statistically differences were obtained in the photoabsorber-factor individually and in the interaction between laser and photoabsorber. There was a lower percentage of microhardness loss in the groups with photoabsorber; G8 presented microhardness similar to G2. FTIR data were submitted to T-test 5%. Compared with G2, higher concentrations of carbonate were found in G4, G6 and G8; phosphate in G8; lower Amide-I concentration at G8 and higher Carbonate/Phosphate ratio at G4 and G6. The interferometry results were submitted to 3-way ANOVA of repeated measures 5%. There were statistically differences in the photoabsorber-factor individually and in the time-factor. Photoabsorber decreased the demineralization; Nd:YAG-laser without photoabsorber were less effective than fluoride; Nd:YAG-laser 100mJ with photoabsorber was as effective as fluoride and; the Nd:YAG-laser, associated or not to the photoabsorber, was no more effective than fluoride in the reduction of artificial decay.IPEN- Nuclear and Energy Research InstituteSão Paulo State University (UNESP) Institute of Science and TechnologySão Paulo State University (UNESP) Institute of Science and TechnologyIPEN- Nuclear and Energy Research InstituteUniversidade Estadual Paulista (Unesp)Zezell, Denise M.Silva, Mateus R. [UNESP]Castro, Pedro A.A.Silva, Tânia M. [UNESP]Goncalves, Sergio E.P. [UNESP]2020-12-12T01:22:54Z2020-12-12T01:22:54Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1117/12.2527213Optics InfoBase Conference Papers, v. Part F142-ECBO 2019.http://hdl.handle.net/11449/19882210.1117/12.25272132-s2.0-85084441481Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengOptics InfoBase Conference Papersinfo:eu-repo/semantics/openAccess2021-10-22T20:36:16Zoai:repositorio.unesp.br:11449/198822Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:12:14.906674Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization
title Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization
spellingShingle Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization
Zezell, Denise M.
Caries
Demineralization
Enamel
Laser
Photoabsorber
title_short Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization
title_full Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization
title_fullStr Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization
title_full_unstemmed Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization
title_sort Nd:YAG laser on dental enamel in the reduction of artificial caries demineralization
author Zezell, Denise M.
author_facet Zezell, Denise M.
Silva, Mateus R. [UNESP]
Castro, Pedro A.A.
Silva, Tânia M. [UNESP]
Goncalves, Sergio E.P. [UNESP]
author_role author
author2 Silva, Mateus R. [UNESP]
Castro, Pedro A.A.
Silva, Tânia M. [UNESP]
Goncalves, Sergio E.P. [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv IPEN- Nuclear and Energy Research Institute
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Zezell, Denise M.
Silva, Mateus R. [UNESP]
Castro, Pedro A.A.
Silva, Tânia M. [UNESP]
Goncalves, Sergio E.P. [UNESP]
dc.subject.por.fl_str_mv Caries
Demineralization
Enamel
Laser
Photoabsorber
topic Caries
Demineralization
Enamel
Laser
Photoabsorber
description Nd:YAG-laser associated to a photoabsorber, in the reduction of artificial caries in enamel was evaluated. Eighty bovine specimens with 6mm diameter and 2mm high were obtained and a half of the surface of each was protected as a control. Microdurometer and FTIR were performed initially and 8 groups (n=10) were obtained according to treatments: G1(control): no-treatment; G2(+control): fluorophosphate; G3(Nd:YAG 60mJ/pulse, 10Hz, 48J/cm2, non-contact); G4(photoabsorber + Nd:YAG 60mJ); G5(Nd:YAG 80mJ/pulse, 10Hz, 64J/cm2); G6(photoabsorber + Nd:YAG 80mJ); G7(Nd:YAG 100mJ/pulse, 10Hz, 80J/cm2); G8(photoabsorber + Nd:YAG 100mJ). De-remineralization cycle were performed for induction of artificial caries and to interferometer, microdurometer and FTIR. Microhardness data were submitted to 2-way ANOVA and Tukey/Dunnett tests 5%. Statistically differences were obtained in the photoabsorber-factor individually and in the interaction between laser and photoabsorber. There was a lower percentage of microhardness loss in the groups with photoabsorber; G8 presented microhardness similar to G2. FTIR data were submitted to T-test 5%. Compared with G2, higher concentrations of carbonate were found in G4, G6 and G8; phosphate in G8; lower Amide-I concentration at G8 and higher Carbonate/Phosphate ratio at G4 and G6. The interferometry results were submitted to 3-way ANOVA of repeated measures 5%. There were statistically differences in the photoabsorber-factor individually and in the time-factor. Photoabsorber decreased the demineralization; Nd:YAG-laser without photoabsorber were less effective than fluoride; Nd:YAG-laser 100mJ with photoabsorber was as effective as fluoride and; the Nd:YAG-laser, associated or not to the photoabsorber, was no more effective than fluoride in the reduction of artificial decay.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
2020-12-12T01:22:54Z
2020-12-12T01:22:54Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1117/12.2527213
Optics InfoBase Conference Papers, v. Part F142-ECBO 2019.
http://hdl.handle.net/11449/198822
10.1117/12.2527213
2-s2.0-85084441481
url http://dx.doi.org/10.1117/12.2527213
http://hdl.handle.net/11449/198822
identifier_str_mv Optics InfoBase Conference Papers, v. Part F142-ECBO 2019.
10.1117/12.2527213
2-s2.0-85084441481
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Optics InfoBase Conference Papers
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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