Temperature changes influenced by different types of light curing units during polymerization of resin-based dental composite materials
Journal Title: Archives of Materials Science and Engineering - Year 2016, Vol 79, Issue 2
Abstract
Purpose: of this study was to evaluate the influence of LCU type on temperature changesduring polymerization of two resin-based composites with different matrices (silorane-basedand methacrylate-based).Design/methodology/approach: The light-curing units (LCUs) selected for this study includedthree various LEDs (LED 55, LED 10W and Radii Plus) and a QTH (Elipar Highlight). Two differentresin-based composites (RBCs) were used in this study. The silorane-based composite FiltekSilorane and methacrylate-based composite Filtek P60. Temperature changes were measuredduring polymerization with LCUs working in various curing modes. Empty mold, Filtek SiloraneRBC 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 withLED 55 light-curing unit. Comparing Filtek Silorane and Filtek P60 RBCs, the temperatureof 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 ofcomposite materials used for teeth restoration in modern dentistry. The experiment should berepeated on a broader group of resin-based composite dental materials and should take intoaccount 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 temperaturesthat are generated during polymerization process of dental composite materials. The resultsof the study are of a great value during choosing the restorative composite material forparticular application in the oral cavity, selecting the right light-curing-unit and adjusting thecuring parametersOriginality/value: The results of the study allow to conclude that the temperature valuesvary for each resin-based material, according to light-curing-unit type and the distance ofcuring seemed to have least influence on temperature changes during polymerization.
Authors and Affiliations
P. Malara, W. Świderski, J. Świderska
Keywords
Related Articles
- EP ID EP189793
- DOI 10.5604/18972764.1229425
- Views 59
- Downloads 0
Effect of the abrasive blasting treatment on the quality of the pressed ceramics joint for a metal foundation
CFD analysis of aerofoil using dimples and prevent radar signals using stealth technology
Purpose: The main objective of aircraft aerodynamics is to enhance the aerodynamiccharacteristics and maneuverability of the aircraft. This enhancement includes the reductionin drag and stall phenomenon. The airfoil whic...
Hydrogen and corrosion resistance of Ni-Co superalloys for gas turbine engines blades
Purpose: This paper is devoted to the investigation of gaseous hydrogen and ash gas turbine fuel influence on the mass loss in long-term corrosion and mechanical properties of cast heat-resis...
Comparison of structure and mechanical properties of implants produced by injection method
Purpose: The paper presents the possibility to improve the mechanical properties of dental implants produced of Ti6Al4V titanium alloy and possibility to use a new method to production those implants. The aim of the stud...
The influence of silver nanoparticles introduced into RTV-silicone matrix on the activity against Streptococcus mutans
Purpose: The silicone based room temperature vulcanized (RTV) polymers are commonlyused materials for medicine, especially for dentures and maxillofacial prostheses.Unfortunately, the colonization of those materials by p...