Temperature Changes on External Root Surfaces with the Use of Several Thermoplastic Filling Techniques

Beraldo, Daniele Zafalon; Pereira, Key Fabiano Souza; Yoshinari, Franciely Mariani Silva; Pinto, J.O.P.; Mateus, Tiago Henrique de Abreu; Zafalon, Edílson José

doi:10.1016/j.joen.2016.04.011

Cited by 1 publication

(2 citation statements)

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“…To perform the sample size calculation, the program G*Power3.1.9.4 was used, considering the analysis of variance for repeated measures. The effect size of 0.78 was obtained considering the N from a previous study 18 , with a significance level of 5%, and a power of 90%, the sample size calculation indicated the need for at least three teeth per group in the present study (n = 3).…”

Section: Methodsmentioning

confidence: 84%

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

Fontanezi,

Bronzato,

Mohara

et al. 2023

Braz. Dent. J.

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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.

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Section: Methodsmentioning

confidence: 84%

“…Different methods have already been used to measure external root temperature, such as thermographic temperature cameras. However, camera calibration can be affected by variables that are difficult to control, such as ambient temperature and distance from the root to the camera 18 , 32 .…”

Section: Discussionmentioning

confidence: 99%