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Published: Edward Lynch
Edward Lynch (Dental) has published an article, Effect of Different Thermo-Light Polymerization on Flexural Strength of Two Glass Ionomer Cements and a Glass Carbomer Cement," in the Journal of Prosthetic Dentistry. The research into the use of polymerization lights for heating glass ionomer cements or glass carbomer to improve their mechanical properties is not well established. The purpose of this study was to assess the effect of thermo-light polymerization on the flexural strength of two heating glass ionomer cements (Fuji IX GP Fast, Ketac Molar) and a glass carbomer, GCP. thermo-light polymerization accelerated the development of flexural strength in the tested heating glass ionomer cements, potentially protecting against saliva contamination during the first three to four minutes after mixing GIC. Thermo-light polymerization of the glass carbomer with power outputs of 1,000 and 1,200 mW/cm2 also substantially increased the flexural strength. The clinical advantages of the findings were discussed, which have significant clinical benefits for patients by improving the clinical success of these filling materials.
He also recently published “Heat Generation on Implant Surface During Abutment Preparation at Different Elapsed Time Intervals" in the journal Implant Dentistry. The purpose of this study was to evaluate heat generation at the implant surface caused by abutment preparation using a diamond bur in a high-speed dental turbine in vitro at two different water-coolant temperatures. Water-coolant temperature (20°C vs 32°C) had a statistically significant effect on the implant's temperature change during preparation of the abutment (P < 0.0001). The use of water-coolant temperature of 20 ± 1°C during preparation of the implant abutment decreased the temperature recorded at the implant surface to 34.46°C, whereas the coolant temperature of 32 ± 1°C increased the implant surface temperature to 40.94°C. This advises doctors about ways to reduce postoperative complications after the placement of implants.
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