Infrared thermal analysis of root surface temperatures during the ultrasonically activated obturation technique

This study evaluates the temperature changes on the external root surfaces of mandibular premolar teeth during ultrasonic condensation of gutta-percha in the root canal. Ten extracted mandibular premolar teethwere selected. The roots were cut to a uniform length of 14mm. Root canal treatments were p...

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Bibliographic Details
Published in:Acta odontologica turcica 2015-05, Vol.32 (2), p.57-57
Main Authors: Er, Özgür, Aslan, Tugrul, Üstün, Yakup, Kilinç, Halil Ibrahim
Format: Article
Language:English
Online Access:Get full text
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Summary:This study evaluates the temperature changes on the external root surfaces of mandibular premolar teeth during ultrasonic condensation of gutta-percha in the root canal. Ten extracted mandibular premolar teethwere selected. The roots were cut to a uniform length of 14mm. Root canal treatments were performed using the Pro-Taper system, and the master apical file was a ProTaper F3 instrument. There were significant differences between the groups. The mean obturation times of the specimens were 232.8 s for the experimental group and 102.5 s for the control. The mean value of the temperature increase in the experimental group was 49.96±11.12°C; and no temperature increase was recorded for control group. The maximum temperature rises was 68.9°C, and the minimum was 35.9°C. High temperatures that may cause hazardous effects on periodontium were observed; however, average cooling times of the samples were in normal ranges (less than 1 min). Further investigations are needed for testing different power settings.
ISSN:2147-690X