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

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 Bezerra Silva, Daniela P. de Melo

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


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 end-odontic filling techniques is within acceptable limits. A greater volume of endodontic cement was observed for the SL and LC filling techniques.

Original languageEnglish (US)
Pages (from-to)34-39
Number of pages6
JournalJournal of Oral Science
Issue number1
StatePublished - 2023


  • Endodontics
  • X-ray microtomography
  • gutta-percha
  • root canal obturation
  • thermography

ASJC Scopus subject areas

  • General Dentistry


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