Micro-computed tomography evaluation of volumetric polymerization shrinkage and degree of conversion of composites cured by various light power outputs

Pablo J. Atria, Camila S. Sampaio, Eduardo Cáceres, Jessica Fernández, Andre F. Reis, Marcelo Giannini, Paulo G. Coelho, Ronaldo Hirata

Resultado de la investigación: Article

5 Citas (Scopus)

Resumen

This study evaluated the influence of different light-curing modes on the volumetric polymerization shrinkage and degree of conversion of a composite resin at different locations using micro-computed tomography and Fourier transform infrared spectroscopy (FTIR). Specimens were divided into 4 groups based on the light-curing mode used (Bluephase 20i): 1 —High (1,200 mW/cm 2 ); 2 —Low (650 mW/cm 2 ); 3 —Soft-start (650–1,200 mW/cm 2 ); and 4 —Turbo (2,000 mW/cm 2 ). Degree of conversion was calculated by the measurement of the peak absorbance height of the uncured and cured materials at the specific wavenumbers, and was performed by FTIR 48 h after curing resin samples. Degree of conversion was analyzed using two-way ANOVA. No significant differences were observed independent of the region of the restoration investigated (p>0.05). Different curing modes did not influence volumetric shrinkage neither degree of conversion of class I composite resin restorations.

Idioma originalEnglish
Páginas (desde-hasta)33-39
Número de páginas7
PublicaciónDental Materials Journal
Volumen37
N.º1
DOI
EstadoPublished - 1 ene 2018

Huella dactilar

Cone-Beam Computed Tomography
Composite Resins
Fourier Transform Infrared Spectroscopy
Polymerization
Tomography
Curing
Light
Resins
Composite materials
Restoration
Fourier transform infrared spectroscopy
Analysis of Variance
Analysis of variance (ANOVA)

ASJC Scopus subject areas

  • Ceramics and Composites
  • Dentistry(all)

Citar esto

Atria, Pablo J. ; Sampaio, Camila S. ; Cáceres, Eduardo ; Fernández, Jessica ; Reis, Andre F. ; Giannini, Marcelo ; Coelho, Paulo G. ; Hirata, Ronaldo. / Micro-computed tomography evaluation of volumetric polymerization shrinkage and degree of conversion of composites cured by various light power outputs. En: Dental Materials Journal. 2018 ; Vol. 37, N.º 1. pp. 33-39.
@article{e99924a5d2b24dfea67f945c26e92851,
title = "Micro-computed tomography evaluation of volumetric polymerization shrinkage and degree of conversion of composites cured by various light power outputs",
abstract = "This study evaluated the influence of different light-curing modes on the volumetric polymerization shrinkage and degree of conversion of a composite resin at different locations using micro-computed tomography and Fourier transform infrared spectroscopy (FTIR). Specimens were divided into 4 groups based on the light-curing mode used (Bluephase 20i): 1 —High (1,200 mW/cm 2 ); 2 —Low (650 mW/cm 2 ); 3 —Soft-start (650–1,200 mW/cm 2 ); and 4 —Turbo (2,000 mW/cm 2 ). Degree of conversion was calculated by the measurement of the peak absorbance height of the uncured and cured materials at the specific wavenumbers, and was performed by FTIR 48 h after curing resin samples. Degree of conversion was analyzed using two-way ANOVA. No significant differences were observed independent of the region of the restoration investigated (p>0.05). Different curing modes did not influence volumetric shrinkage neither degree of conversion of class I composite resin restorations.",
keywords = "Composite, Computed-tomography, Light-curing, Polymerization, Shrinkage",
author = "Atria, {Pablo J.} and Sampaio, {Camila S.} and Eduardo C{\'a}ceres and Jessica Fern{\'a}ndez and Reis, {Andre F.} and Marcelo Giannini and Coelho, {Paulo G.} and Ronaldo Hirata",
year = "2018",
month = "1",
day = "1",
doi = "10.4012/dmj.2016-430",
language = "English",
volume = "37",
pages = "33--39",
journal = "Dental Materials Journal",
issn = "0287-4547",
publisher = "Japanese Society for Dental Materials and Devices",
number = "1",

}

Micro-computed tomography evaluation of volumetric polymerization shrinkage and degree of conversion of composites cured by various light power outputs. / Atria, Pablo J.; Sampaio, Camila S.; Cáceres, Eduardo; Fernández, Jessica; Reis, Andre F.; Giannini, Marcelo; Coelho, Paulo G.; Hirata, Ronaldo.

En: Dental Materials Journal, Vol. 37, N.º 1, 01.01.2018, p. 33-39.

Resultado de la investigación: Article

TY - JOUR

T1 - Micro-computed tomography evaluation of volumetric polymerization shrinkage and degree of conversion of composites cured by various light power outputs

AU - Atria, Pablo J.

AU - Sampaio, Camila S.

AU - Cáceres, Eduardo

AU - Fernández, Jessica

AU - Reis, Andre F.

AU - Giannini, Marcelo

AU - Coelho, Paulo G.

AU - Hirata, Ronaldo

PY - 2018/1/1

Y1 - 2018/1/1

N2 - This study evaluated the influence of different light-curing modes on the volumetric polymerization shrinkage and degree of conversion of a composite resin at different locations using micro-computed tomography and Fourier transform infrared spectroscopy (FTIR). Specimens were divided into 4 groups based on the light-curing mode used (Bluephase 20i): 1 —High (1,200 mW/cm 2 ); 2 —Low (650 mW/cm 2 ); 3 —Soft-start (650–1,200 mW/cm 2 ); and 4 —Turbo (2,000 mW/cm 2 ). Degree of conversion was calculated by the measurement of the peak absorbance height of the uncured and cured materials at the specific wavenumbers, and was performed by FTIR 48 h after curing resin samples. Degree of conversion was analyzed using two-way ANOVA. No significant differences were observed independent of the region of the restoration investigated (p>0.05). Different curing modes did not influence volumetric shrinkage neither degree of conversion of class I composite resin restorations.

AB - This study evaluated the influence of different light-curing modes on the volumetric polymerization shrinkage and degree of conversion of a composite resin at different locations using micro-computed tomography and Fourier transform infrared spectroscopy (FTIR). Specimens were divided into 4 groups based on the light-curing mode used (Bluephase 20i): 1 —High (1,200 mW/cm 2 ); 2 —Low (650 mW/cm 2 ); 3 —Soft-start (650–1,200 mW/cm 2 ); and 4 —Turbo (2,000 mW/cm 2 ). Degree of conversion was calculated by the measurement of the peak absorbance height of the uncured and cured materials at the specific wavenumbers, and was performed by FTIR 48 h after curing resin samples. Degree of conversion was analyzed using two-way ANOVA. No significant differences were observed independent of the region of the restoration investigated (p>0.05). Different curing modes did not influence volumetric shrinkage neither degree of conversion of class I composite resin restorations.

KW - Composite

KW - Computed-tomography

KW - Light-curing

KW - Polymerization

KW - Shrinkage

UR - http://www.scopus.com/inward/record.url?scp=85041346575&partnerID=8YFLogxK

U2 - 10.4012/dmj.2016-430

DO - 10.4012/dmj.2016-430

M3 - Article

C2 - 29081446

AN - SCOPUS:85041346575

VL - 37

SP - 33

EP - 39

JO - Dental Materials Journal

JF - Dental Materials Journal

SN - 0287-4547

IS - 1

ER -