Heat conductive properties of set root canal sealers.
OBJECTIVE
The aim of this study was to examine the thermal conductivity of five different root canal sealers in vitro.


METHODS
Sealapex, AH Plus, AH 26, Endomethasone and RoekoSeal root canal sealers were examined. These materials were prepared in accordance with the manufacturer's instructions and applied to standard molds. Three samples of each material were prepared. The samples were kept for 5 days under 37°C conditions. Measurements were taken using a heat conduction unit (P.A. Hilton Ltd. Stockbridge, Hants, UK). The thermal conductivity coefficient was calculated for each sample using the Fourier equation. Coefficients were analyzed statistically by the Kruskal-Wallis test.


RESULTS
Significant differences were found for thermal conductivity between some materials (p < 0.05). The conductivity coefficient of AH Plus was found to be higher than those of the other materials (p < 0.05). No statistically significant differences were found between AH 26 and RoekoSeal (p > 0.05) and the conductivity coefficients of these sealers were found to be lower than those of the other materials (p < 0.05). No statistically significant differences were found between Sealapex and Endomethasone (p > 0.05) and the conductivity coefficients of these sealers were found to be lower than that of AH Plus but higher than those of RoekoSeal and AH26 (p < 0.05).


CONCLUSIONS
The results showed that root canal sealers functioned as thermal insulators and had different heat-conductive properties that depended on their composition.
Department of Endodontics, Faculty of Dentistry, İnönü University, Malatya, Turkey. ali.keles@inonu.edu.tr
Ali
A
Keles
Fuat
F
Ahmetoglu
Neslihan
N
Simsek
Muhammet
M
Yalcin
Mevlut Sinan
MS
Ocak
D006358:Hot Temperature; D008422:Materials Testing; D012387:Root Canal Filling Materials
D012387:Root Canal Filling Materials