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Investigation of the thermal and physicochemical behavior of two types of gutta-percha cones for back-filling the root canal

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Investigation of the thermal and physicochemical behavior of two types of gutta-percha cones for back-filling the root canal

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dc.contributor.author Aguilar-Hernandez,Jeannette es
dc.contributor.author Torres-Mendez,Fernando es
dc.contributor.author Mendez-Gonzalez,Maria-Veronica es
dc.contributor.author Davila-Perez,Claudia-Edith es
dc.contributor.author Kolosovas-Machuca,Eleazar-Samuel es
dc.contributor.author Gutierrez-Sanchez,Mariana es
dc.date.accessioned 2023-05-31T12:29:36Z
dc.date.available 2023-05-31T12:29:36Z
dc.date.issued 2023 es
dc.identifier.citation Aguilar-Hernández, J., Torres-Méndez, F., Méndez-González, M. V., Davila-Perez, C. E., Kolosovas-Machuca, E. S., & Gutierrez-Sánchez, M. (2023). Investigation of the thermal and physicochemical behavior of two types of gutta-percha cones for back-filling the root canal. Journal of clinical and experimental dentistry, 15(5), e382–e389. es
dc.identifier.uri https://hdl.handle.net/10550/87587
dc.description.abstract Gutta-percha (Gp) is an inert thermoplastic polymer used as a filling to replace the dental pulp space, which has been reformulated to improve its three-dimensional sealing properties. Therefore, this study aimed to analyze the physical, chemical and thermal properties of two types of gutta-percha filling. As well as measuring the temperature distribution along the cone at the time of cutting through an in-situ test. MATERIAL AND METHODS: Two commercially available brands of gutta-percha point were investigated: Conform Fit TM Gutta-Percha for ProTaper Gold(R) (PTG) (Dentsply Sirona), and Hygenic Gutta-Percha (Coltene whaledent). Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were selected for the thermal characterization of materials, and Fourier Transform Infrared Spectroscopy (FT-IR) for the chemical analysis of Gp cones. Regarding temperature distribution, it was evaluated using a thermographic camera (FLIR ONE(R) PRO by MicroUSB P/N 435-0011-01) at 0 to 20 s after the cutting process (n=11/group). RESULTS: Both materials have three fusion endotherms associated with the three crystalline phases of Gp, with similar temperatures but enthalpies that differ by 60%, the fusion enthalpy being higher for Conform Fit. In the chemical characterization, elements such as Zn, C, O, Ba, S and Si were found in both materials but in different proportions. Regarding the content of fillers, the Conform Fit presented around 30% of Gp polymer and 25% for the Hygenic. The morphological characterization shows a microtexturized coating in the form of bars on a micrometric scale for the Conform Fit, which could favor a better three-dimensional seal. In addition to that, in heat transfer studies they showed greater temperature control. CONCLUSIONS: The characterization of the materials allowed us to see the variation in terms of their composition and configuration to the Gp cones of two commercial brands. These variations directly modify the thermal behavior of the material. Key words:Gutta-percha, Conform Fit, Infrared thermography, Differential Scanning Calorimetry, Infrared Spectroscopy. es
dc.title Investigation of the thermal and physicochemical behavior of two types of gutta-percha cones for back-filling the root canal es
dc.type journal article es_ES
dc.subject.unesco UNESCO:CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.60095 es
dc.type.hasVersion VoR es_ES
dc.identifier.url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10198686/

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