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Root surface temperatura variation during mechanical removal of root canal filling material: an in vitro study / Variaciones térmicas en la superficie radiculardurante la desobturación mecánica del conducto. estudio in vitro
García Cuerva, Martín; Horvath, Lucía; Pinasco, Laura; Ciparelli, Verónica; Tartacovsky, Hernán; Gualtieri, Ariel Félix; Casadoumecq, Ana C; Rodríguez, Pablo; González Zanotto, Carlos.
  • García Cuerva, Martín; University of Buenos Aires. School of Dentistry. Department of Operative Clinics I. Buenos Aires. AR
  • Horvath, Lucía; University of Buenos Aires. School of Dentistry. Department of Operative Clinics I. Buenos Aires. AR
  • Pinasco, Laura; University of Buenos Aires. School of Dentistry. Department of Endodontics. Buenos Aires. AR
  • Ciparelli, Verónica; University of Buenos Aires. School of Dentistry. Department of Operative Clinics I. Buenos Aires. AR
  • Tartacovsky, Hernán; University of Buenos Aires. School of Dentistry. Department of Operative Clinics I. Buenos Aires. AR
  • Gualtieri, Ariel Félix; University of Buenos Aires. School of Dentistry. Department of Biophysics. Buenos Aires. AR
  • Casadoumecq, Ana C; University of Buenos Aires. School of Dentistry. Department of Physiology. Buenos Aires. AR
  • Rodríguez, Pablo; University of Buenos Aires. School of Dentistry. Department of Endodontics. Buenos Aires. AR
  • González Zanotto, Carlos; University of Buenos Aires. School of Dentistry. Department of Operative Clinics I. Buenos Aires. AR
Acta odontol. latinoam ; 30(1): 33-38, 2017. ilus, tab, graf
Article in English | LILACS | ID: biblio-907405
ABSTRACT
The aim of this study was to analyze in vitro temperature changeson the outer surface of the dental root during mechanical fillingremoval procedures.Thirty recently extracted single­rooted lower premolars were cuttransversally at 16 mm from the apex in order to standardizesample length. Endodontic treatment was performed on them. Thefilling material was subsequently removed using Gates Glidden(G1, G2, G3); Peeso (P1, P2, P3) and PostecPlus FRC (FRC)reamers while temperatures were measured on the outer surfaceusing a digital device with thermocouple at 0, 2, 4, 6, 8, 10 and 15seconds. Temperatures were compared using repeated measuresANOVA followed by pairwise comparison with Tukey’s test.All reamers caused significant temperature variation betweendifferent times (p<0.05). Pairwise comparisons indicated thattemperature increased with time for all reamers (p<0.05).Significant differences in temperature were found betweendifferent reamers after 0, 2, 4, 6, 8, 10 and 15 seconds (p<0.05)...
RESUMEN
El objetivo del presente trabajo fue estudiar los cambios térmicosin vitro en la superficie externa de la raíz del diente, generadosdurante los procedimientos de desobturación mecánica.Se utilizaron 30 premolares inferiores unirradiculares reciente ­mente extraídos, que fueron seccionados transversalmente a16 mm del ápice para estandardizar la longitud de lasmuestras. Se realizó luego su tratamiento endodóntico. Lasmediciones de temperatura fueron realizadas mediante undispositivo digital con termocupla, en la superficie externa adiferentes tiempos (t = 0, 2, 4, 6, 8, 10 y 15 segundos), durantela desobturación con fresas de Gates Glidden (G1, G2, G3);de Peeso (P1, P2, P3) y la correspondiente a PostecPlus FRC(FRC). Los registros de temperatura fueron comparadosmediante pruebas de ANOVA de medidas repetidas, seguidaspor comparaciones entre pares mediante la prueba de Tukey.Con todas las fresas se encontró una variación significativa dela temperatura entre los diferentes tiempos (p<0.05). Las compa ­raciones entre pares indicaron que la temperatura se incrementócon el tiempo en todas las fresas (p<0.05). Se detectarondiferencias significativas de temperatura entre diferentes fresasdespués de 0, 2, 4, 6, 8, 10 y 15 segundos (p<0.05)...
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Index: LILACS (Americas) Main subject: Tooth Root / Root Canal Preparation / Dental Instruments / Transition Temperature Limits: Humans Language: English Journal: Acta odontol. latinoam Journal subject: Dentistry Year: 2017 Type: Article Affiliation country: Argentina Institution/Affiliation country: University of Buenos Aires/AR

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Index: LILACS (Americas) Main subject: Tooth Root / Root Canal Preparation / Dental Instruments / Transition Temperature Limits: Humans Language: English Journal: Acta odontol. latinoam Journal subject: Dentistry Year: 2017 Type: Article Affiliation country: Argentina Institution/Affiliation country: University of Buenos Aires/AR