In vitro study on how photodynamic therapy and calcium hydroxide medication influence adhesive interface properties of glass-fiber posts to intraradicular dentin

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dc.contributor.authorStrazzi-Sahyon, Henrico Badaoui [UNESP]
dc.contributor.authorBanci, Henrique Augusto [UNESP]
dc.contributor.authorMelo, Fernanda Santos de [UNESP]
dc.contributor.authorSoares, Lucas Silva
dc.contributor.authorSpin-Neto, Rubens
dc.contributor.authorDuarte, Marco Antonio Hungaro
dc.contributor.authorCintra, Luciano Tavares Angelo [UNESP]
dc.contributor.authordos Santos, Paulo Henrique [UNESP]
dc.contributor.authorSivieri-Araujo, Gustavo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionCentro Paula Souza Araçatuba
dc.contributor.institutionAarhus University
dc.contributor.institutionFaculty of Dentistry
dc.date.accessioned2023-07-29T13:45:52Z
dc.date.available2023-07-29T13:45:52Z
dc.date.issued2023-05-01
dc.description.abstractPurpose: This in vitro study evaluated the influence of antimicrobial photodynamic therapy (aPDT), using methylene blue (MB) as photosensitizer (PS) and calcium hydroxide (CH) as intracanal medication on adhesive bond strength, sealing, and integrity of the luting interface of glass-fiber posts to different thirds of endodontically treated root canal dentin. Material and methods: 102 incisors were sorted into 6 groups: a negative control irrigated with deionized water; a positive control irrigated with deionized water and filled with CH; CH + MB 50 mg/L without laser radiation; CH + MB 100 mg/L without laser radiation; CH + MB 50 mg/L radiated by red laser; and CH + MB 100 mg/L radiated by red laser. Push-out bond strength (n = 8), adhesive interface sealing (n = 3), and volume and quantification of voids (n = 6) were assessed using a universal testing machine, confocal laser scanning microscope, and computerized microtomography, respectively. Scanning electron micrographs were obtained from representative samples to qualify the fracture patterns. Push-out bond strength and adhesive interface integrity data were subjected to 2-way ANOVA for repeated measures followed by Tukey's test (α = 0.05). Adhesive interface sealing was evaluated by the inter-examiner Kappa test and submitted to Kruskal-Wallis and Dunns tests (α = 0.05). Results: Assessing the apical region, the positive control and MB100WA + Ca(OH)2 groups showed lower adhesive bond strength compared to the MB100A + Ca(OH)2 group (P < 0.05). The cervical third showed higher bond strength than the apical third for the positive control, MB50WA + Ca(OH)2, MB100WA + Ca(OH)2, and MB50A + Ca(OH)2 groups (P < 0.05). A prevalence of mixed failure was observed in all experimental groups. There were no statistically significant differences in adhesive interface sealing for any of the parameters assessed (P > 0.05). MB100WA + Ca(OH)2 and MB100A + Ca(OH)2 groups promoted a higher volume and quantification of voids compared to the negative control group evaluating the cervical third (P < 0.05). In general, there were no differences in the quantification of voids comparing the intraradicular thirds (P > 0.05), differently to the volume of voids in which, in general, the cervical third promoted higher values compared to the middle and apical thirds (P < 0.05). Conclusion: aPDT with methylene blue PS at 50 mg/L associated with calcium hydroxide as intracanal medication demonstrated satisfactory bond strength, sealing, and integrity of the adhesive interface at any intraradicular depth.en
dc.description.affiliationDepartment of Dental Materials and Prosthodontics Araçatuba School of Dentistry São Paulo State University UNESP, SP
dc.description.affiliationDepartment of Prosthodontics and Periodontology Bauru School of Dentistry University of Sao Paulo USP, SP
dc.description.affiliationDepartment of Preventive and Restorative Dentistry Discipline of Endodontics Araçatuba School of Dentistry São Paulo State University UNESP, SP
dc.description.affiliationEtec Araçatuba -Public School Centro Paula Souza Araçatuba, SP
dc.description.affiliationSection of Oral Radiology Department of Dentistry and Oral Health Aarhus University
dc.description.affiliationDepartment of Restorative Dentistry Endodontics and Dental Materials Bauru School of Dentistry São Paulo University USP, SP
dc.description.affiliationDental Research Institute University of Toronto Faculty of Dentistry
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics Araçatuba School of Dentistry São Paulo State University UNESP, SP
dc.description.affiliationUnespDepartment of Preventive and Restorative Dentistry Discipline of Endodontics Araçatuba School of Dentistry São Paulo State University UNESP, SP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: #19/16171-5
dc.description.sponsorshipIdFAPESP: #19/24328-1
dc.identifierhttp://dx.doi.org/10.1016/j.jmbbm.2023.105757
dc.identifier.citationJournal of the Mechanical Behavior of Biomedical Materials, v. 141.
dc.identifier.doi10.1016/j.jmbbm.2023.105757
dc.identifier.issn1878-0180
dc.identifier.issn1751-6161
dc.identifier.scopus2-s2.0-85149861059
dc.identifier.urihttp://hdl.handle.net/11449/248504
dc.language.isoeng
dc.relation.ispartofJournal of the Mechanical Behavior of Biomedical Materials
dc.sourceScopus
dc.subjectBond strength
dc.subjectCalcium hydroxide
dc.subjectDentin
dc.subjectMethylene blue
dc.subjectPhotodynamic therapy
dc.subjectResin cements
dc.titleIn vitro study on how photodynamic therapy and calcium hydroxide medication influence adhesive interface properties of glass-fiber posts to intraradicular dentinen
dc.titlePhotodynamic therapy on adhesive interface of glass-fiber postses
dc.typeArtigo
unesp.author.orcid0000-0001-7014-0437 0000-0001-7014-0437[1]
unesp.author.orcid0000-0002-4344-4491[2]
unesp.author.orcid0000-0003-2348-7846[7]

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Artigos - Materiais Odontológicos e Prótese - FOA
Artigos - Odontologia Restauradora - FOA