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Purpose: of this study was to evaluate the influence of LCU type on temperature changes during polymerization of two resin-based composites with different matrices (silorane-based and methacrylate-based). Design/methodology/approach: The light-curing units (LCUs) selected for this study included three various LEDs (LED 55, LED 10W and Radii Plus) and a QTH (Elipar Highlight). Two different resin-based composites (RBCs) were used in this study. The silorane-based composite Filtek Silorane and methacrylate-based composite Filtek P60. Temperature changes were measured during polymerization with LCUs working in various curing modes. Empty mold, Filtek Silorane RBC and Filtek P60 RBC were cured from a distance of 0 mm, 2.5 mm and 5 mm. Findings: Regardless the type of RBC, every time the highest temperature was reached with LED 55 light-curing unit. Comparing Filtek Silorane and Filtek P60 RBCs, the temperature of Filtek Silorane RBC was significantly higher with LED 55 (35.4±4.9), Radii Plus (33.5±5.5) and Elipar Highlight LCUs (31.2±3.1), and significantly lower with LED 10W LCU (28.5±7.5). For Filtek P60 the measured temperatures of polymerization were 32.7±3.2 for LED 55 LCU, 29.9±5.6 for LED 10W LCU, 31.0±2.4 for RadiiPlus LCU and 30.2±1.8 for Elipar Highlight LCU. Research limitations/implications: The research was carried out for two groups of composite materials used for teeth restoration in modern dentistry. The experiment should be repeated on a broader group of resin-based composite dental materials and should take into account more light-curing units. The study could be also done in situ on a real tooth model. Practical implications: This research gives an insight into the range of temperatures that are generated during polymerization process of dental composite materials. The results of the study are of a great value during choosing the restorative composite material for particular application in the oral cavity, selecting the right light-curing-unit and adjusting the curing parameters Originality/value: The results of the study allow to conclude that the temperature values vary for each resin-based material, according to light-curing-unit type and the distance of curing seemed to have least influence on temperature changes during polymerization.
Wydawca
Rocznik
Tom
Strony
64--70
Opis fizyczny
Bibliogr. 20 poz.
Twórcy
autor
- Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland
autor
- Health Care Centre Denticus 2, ul. Bolesława Śmiałego 28, 70-348 Szczecin, Poland
autor
- Health Care Centre Denticus 2, ul. Bolesława Śmiałego 28, 70-348 Szczecin, Poland
Bibliografia
- [1] K.D. Jandt, R.W. Mills, A brief history of LED photopolymerization, Dental Materials 29/6 (2013) 605-617.
- [2] A.U. Yap, M.S. Soh, Thermal emission by different light-curing units, Operative Dentistry 28 (2003) 260-266.
- [3] M. Miyazaki, T. Hattori, Y. Ichiishi, M. Kondo, H. Onose, B.K. Moore, Evaluation of curing lights used in private dental offices, Operative Dentistry 23 (1998) 50-54.
- [4] M.G. Neumann, C.C. Schmitt, G.C. Ferreira, I.C. Correa, The initiating radical yields and the efficiency of polymerization for various dental photoinitiators excited by different light curing units, Dental Materials 22/6 (2006) 576-584.
- [5] S.A. Antonson, D.E. Antonson, P.C. Hardigan, Should my new curing light be an LED?, Operative Dentistry 33/4 (2008) 400-407.
- [6] L.F. Schneider, S. Consani, L. Correr-Sobrinho, A.B. Correr, M.A. Sinhoreti, Halogen and LED light curing of composite: Temperature increase and Knoop hardness, Clinical Oral Investigations 10/1 (2006) 66-71.
- [7] A.C Shortall, How light source and product shade influence cure depth for a contemporary composite, Journal of Oral Rehabilitation 32/12 (2005) 906-911.
- [8] M.S. Soh, A.U. Yap, T. Yu, Z.X. Shen, Analysis of the degree of conversion of LED and halogen lights using micro-Raman spectroscopy, Operative Dentistry 29/5 (2004) 571-577.
- [9] A.U. Yap, M.S. Soh, Curing efficacy of a new generation high-power LED lamp, Operative Dentistry 30/6 (2005) 758-763.
- [10] A. Schattenberg, D. Lichtenberg, E. Stender, B. Willershausen, C.P. Ernst, Minimal exposure time of different LED curing devices, Dental Materials 24/8 (2008) 1043-1049.
- [11] P. Malara, Z. Czech, W. widerski, The effect of the curing time and the distance from the light source on hardness of Methacrylate and Silorane resin-based dental composite materials, Archives of Materials Science and Engineering 70/1 (2014) 28-38.
- [12] W. widerski, Z. Czech, P. Malara, Of compressive strength of dental fillings photoreactive curable with visible light, Chemical industry 93/12 (2014) 2214- 2217.
- [13] G. Chladek, K. Basa, J. mudzki, P. Malara, A. Nowak, J. Kasperski, Influence of aging solutions on wear resistance and hardness of selected resin-based dental composites, Acta of Bioengineering and Biomechanics 18/3 (2016) 1-16.
- [14] P. Malara, W. widerski, Z. Czech, Influence of the light source and curing parameters on microhardness of a silorane based dental composite material, Archives of Metallurgy and Materials 61/3 (2016) 985-990.
- [15] E.M. da Silva, A.G. Penelas, M.S. Simão, J.D. Filho, L.T. Poskus, J.G. Guimarães, Influence of the degree of dentine mineralization on pulp chamber temperature increase during resin-based composite (RBC) light-activation, Journal of Dental 38/4 (2010) 336-42.
- [16] A. Santini, C. Watterson, V. Miletic, Temperature rise within the pulp chamber during composite resin polymerisation using three different light sources, Open Dent Journal 5/2 (2008) 137-141.
- [17] A.C. Shortall, E. Harrington, Temperature rise during polymerization of light-activated resin composites, Journal of Oral Rehabilitation 25 (1998) 908-913.
- [18] M. Hannig, B. Bott, In vivo, in-vitro pulp chamber temperature rise during composite resin polymerization with various light-curing sources, Dental Materials 15 (1999) 275-281.
- [19] A. Uhl, A. Volpel, B.W. Sigusch, Influence of heat from light curing units and dental composite polymerization on cells in vitro, Journal of Dental 34 (2006) 298-306.
- [20] A. Uhl, R.W. Mills, K.D. Jandt, Polymerization and light-induced heat of dental composites cured with LED and halogen technology, Biomaterials 24/1 (2003) 1809-1820.
Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-2bbe73bd-acc6-4ffc-8baf-fcf9f943e178