Abstract
Pulp chamber temperature changes during orthodontic bonding – an in vitro study
Highlights
Recent advances in the development of light-cured adhesives have provided significant advantages during orthodontic fixed appliance application
The specific aims of the present study were to use a thermal camera to investigate the temperature changes in the pulp chamber under different conditions involving the use of different light sources, different curing distances, and bracket types
The highest temperature rise was found in the Halogen group (1.15 ± 0.52°C), followed by powered light-emitting diode (LED) (0.65 ± 0.30°C), LED (0.46 ± 0.39°C), and high-power LED (0.31 ± 0.12°C)
Summary
Recent advances in the development of light-cured adhesives have provided significant advantages during orthodontic fixed appliance application. Alternatives such as light-emitting diode (LED), argon laser, high intensity, low intensity, and plasma arc light-curing units and conventional quartz-tungsten-halogen lights (QTH) have become popular. Their clinical popularity is a result of the easier removal of excess adhesive around the brackets, more accurate bracket positioning and a reduced irradiation time.[1] LEDs have a higher source longevity compared with conventional halogen units. Powerful LED light-curing units have allowed a further reduction in curing time along with better polymerisation of adhesives.[2] Previously, Eliades[3] briefly indicated the importance of the continual improvements in orthodontic materials and techniques and projected that the use of plasma arc and LED units will be widespread
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