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The Effect of Ultrasonic Vibration of Posts on Root Surface Temperature



Andrew Huttula, Patricia Tordik, Glen Imamura, F Eichmiller, Scott McClanahan


This study measured root surface temperature changes when ultrasonic vibration, with and without irrigation, was applied to cemented endodontic posts. Twenty-six, extracted, single-rooted premolars were randomly divided into 2 groups. Root lengths were standardized, canals instrumented, obturated, and endodontic posts cemented into prepared post spaces. Thermocouples were positioned at two locations on the proximal root surfaces. Samples were embedded in plaster and brought to 37 C in a water bath. Posts were ultrasonically vibrated for 4 minutes while continuously measuring temperature. Two-way ANOVA compared effects of water cooling irrigation and thermocouple location on temperature change. Root surface temperatures were significantly higher (p < 0.001) when posts were instrumented without irrigation.A trend for higher temperatures was observed at the coronal thermocouples of non-irrigated teeth and at the apical thermocouples of irrigated teeth (p = 0.057). Irrigation during post removal with ultrasonics had a significant impact on the temperature measured at the external root surface.
Journal of Endodontics


cemented post removal, endodontic post heat, endodontic post removal, ultrasonic heat, ultrasonic post removal


Huttula, A. , Tordik, P. , Imamura, G. , Eichmiller, F. and McClanahan, S. (2021), The Effect of Ultrasonic Vibration of Posts on Root Surface Temperature, Journal of Endodontics (Accessed July 21, 2024)


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Created October 12, 2021