Literature DB >> 21180971

Influence of the photoinitiator system and light photoactivation units on the degree of conversion of dental composites.

Isabel Cristina Celerino de Moraes Porto1, Luis Eduardo Silva Soares, Airton Abrahão Martin, Vanessa Cavalli, Priscila Christiane Suzy Liporoni.   

Abstract

The aim of this study was to observe the influence of two light polymerization units (LED or halogen light) on the degree of conversion (DC) of three dental composites with lighter shades and a different photoinitiator system. The top (T) and bottom (B) surfaces of 60 discs of composite resin (Filtek™ Supreme, Filtek™ Z250, Tetric™ Ceram Bleach) cured either by LED or by halogen lamp (HL) were studied using an FT-Raman spectrometer. The degree of conversion (DC) was evaluated by following the changes in the intensity of the methacrylate C=C stretching mode at 1640 cm⁻¹. The calculated DC ranged from 54.2% (B) to 73.4% (T) and from 60.2% (B) to 76.6% (T) for the LED and HL, respectively. LED and halogen devices were able to produce an adequate DC for all the resins tested.

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Year:  2010        PMID： 21180971     DOI： 10.1590/s1806-83242010000400017

Source DB:  PubMed          Journal:  Braz Oral Res        ISSN： 1806-8324


  7 in total

1.  405 nm diode laser, halogen lamp and LED device comparison in dental composites cure: an "in vitro" experimental trial.

Authors:  C Fornaini; G Lagori; E Merigo; J-P Rocca; M Chiusano; A Cucinotta
Journal:  Laser Ther       Date:  2015-12-30

2.  Effect of light sources and curing mode techniques on sorption, solubility and biaxial flexural strength of a composite resin.

Authors:  Andreia Assis Carvalho; Francine do Couto Lima Moreira; Rodrigo Borges Fonseca; Carlos José Soares; Eduardo Batista Franco; João Batista de Souza; Lawrence Gonzaga Lopes
Journal:  J Appl Oral Sci       Date:  2012 Mar-Apr       Impact factor: 2.698

3.  Effect of Shade and Light Curing Mode on the Degree of Conversion of Silorane-Based and Methacrylate-Based Resin Composites.

Authors:  Mousavinasab Sm; Atai M; Salehi N; Salehi A
Journal:  J Dent Biomater       Date:  2016-12

4.  Effect of Curing Modes on the Mechanical Properties of Commercial Dental Resin-Based Composites: Comparison between Different LEDs and Microwave Units.

Authors:  Alef Vermudt; Milton Carlos Kuga; João Felipe Besegato; Eliane Cristina Gulin de Oliveira; Thaís Piragine Leandrin; Marcus Vinicius Reis Só; João Carlos Silos Moraes; Jefferson Ricardo Pereira
Journal:  Polymers (Basel)       Date:  2022-09-26       Impact factor: 4.967

5.  Physical and chemical mechanisms involved in adhesion of orthodontic bonding composites: in vitro evaluations.

Authors:  R Condò; G Mampieri; A Cioffi; M E Cataldi; I Frustaci; A Giancotti; V Campanella; V Mussi; A Convertino; L Maiolo; G Pasquantonio
Journal:  BMC Oral Health       Date:  2021-07-16       Impact factor: 2.757

6.  Effect of food stimulated liquids and thermocycling on the monomer elution from a nanofilled composite.

Authors:  Masumeh Hasani Tabatabaei; Sima Sadrai; Seyed Hossein Bassir; Nadia Veisy; Somaye Dehghan
Journal:  Open Dent J       Date:  2013-07-26

7.  Mechanical Properties of Experimental Composites with Different Photoinitiator.

Authors:  Luis Felipe Marques de Resende; Anderson Catelan; Kusai Baroudi; Alan Rodrigo Muniz Palialol; Alexandre Marques de Resende; Ana Carolina Andreucci; Rayssa Ferreira Zanatta; Priscila Christiane Suzy Liporoni
Journal:  Eur J Dent       Date:  2021-08-24
  7 in total

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