PMID: 8957787Dec 1, 1996Paper

Comparison of degree of conversion for light-cured and additionally heat-cured composites

The Journal of Prosthetic Dentistry
S H Park

Abstract

The purpose of this study was to compare the changes in the degree of conversion in the various layers of composites after additional heat curing. Four types of composites and three types of inlay ovens were used in this study. Composite was placed in a 4 mm thick Teflon mold and light cured from the top for 60 seconds. Twenty samples were prepared for each composite; 10 of these were additionally heat cured in an inlay oven as the manufacturer recommended. After light curing or light and heat curing, the samples were sectioned into four parts and assigned to groups A, B, C, or D according to their distance from the light source. These sections were then thinned to 50 to 70 mm, and these wafers were analyzed with a Fourier Transform Infrared spectrometer to determine the degree of conversion. A standard baseline technique was used to calculate the degree of conversion. When the composites were heat cured, significant increases in the degree of conversion were noted throughout the samples, but the amount of increase differed among materials. Thus the clinical performance of a heat-treated composite inlay may be different depending on materials.

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Citations

Jan 1, 2006·The Libyan Journal of Medicine·Sufyan Garoushi, Pekka Vallittu
Jun 15, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·K L Van LanduytB Van Meerbeek
Dec 18, 2013·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Amal AlharbiIvo Krejci
Jun 3, 2004·Dental Clinics of North America·Martin A Freilich, Jonathan C Meiers
Mar 15, 2013·Journal of Oral Science·Vishal JainGilberto A Borges
Sep 1, 2005·Journal of Applied Oral Science : Revista FOB·Antonio MuenchMário João
Dec 4, 2009·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Fulya Toksoy TopcuCengizhan Acikel
Apr 22, 2010·Journal of Child Psychology and Psychiatry, and Allied Disciplines·Soo-Churl ChoHyo-Won Kim
Oct 30, 2003·Acta Odontologica Scandinavica·Jakob LeirskarFrithjof Ramm von der Fehr
Nov 14, 2017·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Amal AlharbiIvo Krejci
Jan 11, 2020·Stomatologii︠a︡·M A MuradovI Ya Poyurovskaya
Feb 10, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Parissa Nassary ZadehFelicitas Mayinger
Apr 10, 2021·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Lígia Lopes-RochaJúlio C M Souza

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