Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.dental.2022.09.020 http://hdl.handle.net/11449/246054 |
Resumo: | Objectives: To investigate the effect of methacrylate polyhedral oligomeric silsesquioxanes (POSS-8) on various material properties and mineral precipitation potential of a resin infiltrant. Methods: A TEGDMA-based resin infiltrant was mixed with 0.5, 1, 3, 5 or 10 wt% POSS-8 or left unchanged (control). Degree of conversion (DC), water sorption (WS), viscosity, elastic modulus (E-modulus), flexural strength (FS), Knoop microhardness (KHN) and softening ratio (SR) were assessed. Growth of calcium phosphate (Ca/P) precipitates infiltrant-treated bovine enamel and dentin specimens immersed in artificial saliva or artificial dentinal fluid, respectively, for 28 days was analyzed by scanning electron microscopy and energy-dispersive X-ray spectroscopy. For viscosity assessment, pure TEGDMA filled with 0–10 wt% POSS-8 was used. Statistical analyses were performed using ANOVA and Tukey's post-hoc tests (p < 0.05). Results: POSS-8 did not change the flexural strength, water sorption and softening ratio. The apparent degree of conversion was increased at lower concentrations only while E-modulus remained constant in almost all groups. The particles led to a slight decrease of KHN at concentrations below 3%. The effect on viscosity is comparable to the reinforcement effect. Ca/P precipitates formed on dentin specimens treated with POSS-8-filled infiltrant after 4 weeks of immersion, but were not detected on the control infiltrant. The mineral precipitation on enamel was not improved by POSS-8. Significance: POSS-8 particles did not worsen the material properties of the resin infiltrant, while the Ca/P precipitation on dentin was stimulated. |
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Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanesBioactive fillersDegree of conversionElastic modulusEnamel and dentin lesionFlexural strengthKnoop hardnessPOSSResin infiltrantViscosityObjectives: To investigate the effect of methacrylate polyhedral oligomeric silsesquioxanes (POSS-8) on various material properties and mineral precipitation potential of a resin infiltrant. Methods: A TEGDMA-based resin infiltrant was mixed with 0.5, 1, 3, 5 or 10 wt% POSS-8 or left unchanged (control). Degree of conversion (DC), water sorption (WS), viscosity, elastic modulus (E-modulus), flexural strength (FS), Knoop microhardness (KHN) and softening ratio (SR) were assessed. Growth of calcium phosphate (Ca/P) precipitates infiltrant-treated bovine enamel and dentin specimens immersed in artificial saliva or artificial dentinal fluid, respectively, for 28 days was analyzed by scanning electron microscopy and energy-dispersive X-ray spectroscopy. For viscosity assessment, pure TEGDMA filled with 0–10 wt% POSS-8 was used. Statistical analyses were performed using ANOVA and Tukey's post-hoc tests (p < 0.05). Results: POSS-8 did not change the flexural strength, water sorption and softening ratio. The apparent degree of conversion was increased at lower concentrations only while E-modulus remained constant in almost all groups. The particles led to a slight decrease of KHN at concentrations below 3%. The effect on viscosity is comparable to the reinforcement effect. Ca/P precipitates formed on dentin specimens treated with POSS-8-filled infiltrant after 4 weeks of immersion, but were not detected on the control infiltrant. The mineral precipitation on enamel was not improved by POSS-8. Significance: POSS-8 particles did not worsen the material properties of the resin infiltrant, while the Ca/P precipitation on dentin was stimulated.Department of Preventive Dentistry Periodontology and Cariology University Medical Center GöttingenDepartment of Pediatric Dentistry and Public Health Sao Paulo State University (UNESP) School of DentistryJülich Centre for Neutron Science (JCNS) & Institute for Complex Systems (ICS) Forschungszentrum Jülich GmbHDepartment of Pediatric Dentistry and Public Health Sao Paulo State University (UNESP) School of DentistryUniversity Medical Center GöttingenUniversidade Estadual Paulista (UNESP)Forschungszentrum Jülich GmbHPaiva, M. F. [UNESP]Rizk, M.Pessan, J. P. [UNESP]Kreutz, M.Rohland, B.Biehl, R.Stadler, A.Stellbrink, J.Wiegand, A.2023-07-29T12:30:31Z2023-07-29T12:30:31Z2022-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1900-1909http://dx.doi.org/10.1016/j.dental.2022.09.020Dental Materials, v. 38, n. 12, p. 1900-1909, 2022.0109-5641http://hdl.handle.net/11449/24605410.1016/j.dental.2022.09.0202-s2.0-85139685913Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengDental Materialsinfo:eu-repo/semantics/openAccess2023-07-29T12:30:31Zoai:repositorio.unesp.br:11449/246054Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:49:27.134594Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes |
title |
Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes |
spellingShingle |
Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes Paiva, M. F. [UNESP] Bioactive fillers Degree of conversion Elastic modulus Enamel and dentin lesion Flexural strength Knoop hardness POSS Resin infiltrant Viscosity |
title_short |
Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes |
title_full |
Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes |
title_fullStr |
Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes |
title_full_unstemmed |
Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes |
title_sort |
Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes |
author |
Paiva, M. F. [UNESP] |
author_facet |
Paiva, M. F. [UNESP] Rizk, M. Pessan, J. P. [UNESP] Kreutz, M. Rohland, B. Biehl, R. Stadler, A. Stellbrink, J. Wiegand, A. |
author_role |
author |
author2 |
Rizk, M. Pessan, J. P. [UNESP] Kreutz, M. Rohland, B. Biehl, R. Stadler, A. Stellbrink, J. Wiegand, A. |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
University Medical Center Göttingen Universidade Estadual Paulista (UNESP) Forschungszentrum Jülich GmbH |
dc.contributor.author.fl_str_mv |
Paiva, M. F. [UNESP] Rizk, M. Pessan, J. P. [UNESP] Kreutz, M. Rohland, B. Biehl, R. Stadler, A. Stellbrink, J. Wiegand, A. |
dc.subject.por.fl_str_mv |
Bioactive fillers Degree of conversion Elastic modulus Enamel and dentin lesion Flexural strength Knoop hardness POSS Resin infiltrant Viscosity |
topic |
Bioactive fillers Degree of conversion Elastic modulus Enamel and dentin lesion Flexural strength Knoop hardness POSS Resin infiltrant Viscosity |
description |
Objectives: To investigate the effect of methacrylate polyhedral oligomeric silsesquioxanes (POSS-8) on various material properties and mineral precipitation potential of a resin infiltrant. Methods: A TEGDMA-based resin infiltrant was mixed with 0.5, 1, 3, 5 or 10 wt% POSS-8 or left unchanged (control). Degree of conversion (DC), water sorption (WS), viscosity, elastic modulus (E-modulus), flexural strength (FS), Knoop microhardness (KHN) and softening ratio (SR) were assessed. Growth of calcium phosphate (Ca/P) precipitates infiltrant-treated bovine enamel and dentin specimens immersed in artificial saliva or artificial dentinal fluid, respectively, for 28 days was analyzed by scanning electron microscopy and energy-dispersive X-ray spectroscopy. For viscosity assessment, pure TEGDMA filled with 0–10 wt% POSS-8 was used. Statistical analyses were performed using ANOVA and Tukey's post-hoc tests (p < 0.05). Results: POSS-8 did not change the flexural strength, water sorption and softening ratio. The apparent degree of conversion was increased at lower concentrations only while E-modulus remained constant in almost all groups. The particles led to a slight decrease of KHN at concentrations below 3%. The effect on viscosity is comparable to the reinforcement effect. Ca/P precipitates formed on dentin specimens treated with POSS-8-filled infiltrant after 4 weeks of immersion, but were not detected on the control infiltrant. The mineral precipitation on enamel was not improved by POSS-8. Significance: POSS-8 particles did not worsen the material properties of the resin infiltrant, while the Ca/P precipitation on dentin was stimulated. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-01 2023-07-29T12:30:31Z 2023-07-29T12:30:31Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.dental.2022.09.020 Dental Materials, v. 38, n. 12, p. 1900-1909, 2022. 0109-5641 http://hdl.handle.net/11449/246054 10.1016/j.dental.2022.09.020 2-s2.0-85139685913 |
url |
http://dx.doi.org/10.1016/j.dental.2022.09.020 http://hdl.handle.net/11449/246054 |
identifier_str_mv |
Dental Materials, v. 38, n. 12, p. 1900-1909, 2022. 0109-5641 10.1016/j.dental.2022.09.020 2-s2.0-85139685913 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Dental Materials |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1900-1909 |
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) |
repository.mail.fl_str_mv |
|
_version_ |
1808129465738330112 |