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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Assessment of the root surface temperature during the use of intracanal agitation systems: In vitro study

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Author(s):
Barbara S. Fontanezi [1] ; Juliana D. Bronzato [2] ; Nelson T. Mohara [3] ; Adriana de-Jesus-Soares [4] ; Marcos Frozoni [5]
Total Authors: 5
Affiliation:
[1] São Leopoldo Mandic School of Dentistry. Department of Endodontics - Brasil
[2] State University of Campinas. Piracicaba Dental School. Department of Restorative Dentistry, Division of Endodontics - Brasil
[3] São Leopoldo Mandic School of Dentistry. Department of Endodontics - Brasil
[4] São Leopoldo Mandic School of Dentistry. Department of Endodontics - Brasil
[5] São Leopoldo Mandic School of Dentistry. Department of Endodontics - Brasil
Total Affiliations: 5
Document type: Journal article
Source: Brazilian Dental Journal; v. 34, n. 4, p. 44-53, 2023-10-27.
Abstract

Abstract This study aimed to evaluate the temperature changes that the different methods of agitation of irrigants promote on the external dental root surface. Nine extracted human lower premolars were standardized by cone-beam computed tomography and used. The root canal was instrumented with a Reciproc 40.06 file. Temperature measurement was performed using K-type thermocouple sensors attached to the middle, cervical, and apical thirds of the teeth. The teeth had their roots immersed in distilled water at 37ºC, which were distributed into 3 experimental groups according to the mechanical agitation methods to be studied. US Group (n=3), Irrisonic Ultrasonic Tip activated through ultrasound; EC Group (n=3), Easyclean Tip coupled to a contra-angle low-speed handpiece; XP Group (n=3), XP-endo Finisher file coupled to an endodontic electrical motor. Temperature measurements were performed simultaneously with agitation and irrigation of intracanal irrigants. Statistical analysis was performed using SPSS software with a significance level of 5%. For multiple comparisons, the Tukey test was used. The association between mechanical agitation methods and root third was statistically significant. Regarding the temperatures recorded on the external surface of the roots, the ultrasonic tip was significantly higher than the XP-endo Finisher file and the Easyclean tip, which did not differ from each other. Regarding the ultrasonic tip, the external temperature in the middle third (39.46ºC) of the root was significantly lower than in the cervical (40.41ºC) and apical third (40.53ºC). None of the agitation methods of irrigants studied presented heating above 47ºC, and their use is safe for periodontal tissues. (AU)

FAPESP's process: 17/25090-3 - Microbiological and fadA family analysis in root canals and periapical lesions of teeth with secondary infection and their relation with the levels of proinflammatory cytokines and MMPs
Grantee:Juliana Delatorre Bronzato
Support Opportunities: Scholarships in Brazil - Post-Doctoral