Thermal and volumetric assessment of endodontic filling techniques using infrared thermography and micro-CT.

IF 1.9 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Journal of oral science Pub Date : 2023-01-11 DOI:10.2334/josnusd.22-0285

Fernanda Clotilde M Suassuna, Débora Ketley M de Araújo, Ana Marly A M Amorim, Saulo Leonardo S Melo, Richard J Heck, Antonio Celso D Antonino, Patrícia M Bento, Diego Filipe B Silva, Daniela P de Melo

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Abstract

Purpose: To assess root temperature during filling techniques and quantify the volume of endodontic filling materials using infrared thermography (IT) and micro-computed tomography (micro-CT).

Methods: Ninety premolars were divided into three groups: lateral condensation (LC), single cone (SC) and thermomechanical compaction (TMC). For thermal analysis, 45 teeth were assessed using a FLIR T650sc IT camera during filling techniques and 45 teeth were scanned using a Nikon micro-CT to assess gutta-percha, cement, and void volumes. Descriptive and inferential statistical analyses were performed (non-parametric Mann-Whitney test, Kruskal-Wallis test, and Friedman test with Tukey's bidirectional analysis of variance).

Results: TMC showed the highest temperature increase at 15 s after the procedure and a significant temperature decrease at 45 s after its completion. TMC showed the largest volume of gutta-percha and LC the highest void volume.

Conclusion: The temperature increase generated by gutta-percha endodontic filling techniques is within acceptable limits. A greater volume of endodontic cement was observed for the SL and LC filling techniques.

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利用红外热像仪和微型ct对牙髓充填技术进行热容量评估。

目的:利用红外热像仪(IT)和微计算机断层扫描(micro-CT)技术评估充填技术过程中的根温，并定量根管充填材料的体积。方法:将90颗前磨牙分为3组:侧合(LC)组、单锥(SC)组和热机械压实(TMC)组。为了进行热分析，在填充技术中使用FLIR T650sc IT相机对45颗牙齿进行了评估，并使用尼康微型ct对45颗牙齿进行了扫描，以评估胶、水泥和空隙体积。进行描述性和推断性统计分析(非参数Mann-Whitney检验、Kruskal-Wallis检验和Friedman检验，采用Tukey双向方差分析)。结果:TMC在手术后15s温度升高最高，在手术完成后45s温度明显下降。TMC的杜仲胶体积最大，LC的空隙体积最大。结论:杜仲胶根管充填技术的温升在可接受范围内。在SL和LC充填技术中观察到更大体积的根管骨水泥。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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