Kurzfassung

Thermoplastic filling methods are supposed to improve the adaptation of the filling material to the root canal walls. The aim of this investigation was to determine the heat absorption and transportation potential of gutta-percha. Heat was applied at room temperature (28/2C) by means of a heat-plugger size. 10 (M) to gutta-percha points sizes 30/.06 and .04 during 2s (0.5s). The maximum temperature (C) of the heat-plugger tip and edge of the gutta-percha point at 5 and 1mm from their tip were...Thermoplastic filling methods are supposed to improve the adaptation of the filling material to the root canal walls. The aim of this investigation was to determine the heat absorption and transportation potential of gutta-percha. Heat was applied at room temperature (28/±2°C) by means of a heat-plugger size. 10 (M) to gutta-percha points sizes 30/.06 and .04 during 2s (±0.5s). The maximum temperature (°C) of the heat-plugger tip and edge of the gutta-percha point at 5 and 1mm from their tip were measured by means of a ThermaCAM SC640 infrared camera (Flir Systems/Frankfurt, Germany). The results were statistically analyzed and showed that the mean temperatures applied and reached by the gutta-percha points sizes were between 302.62 (applied; ±32.05); 156.02 (reached; ±17.14) and 266.51 (applied; ±32.64); 136.16 (reached; ±26.47) respectively. The mean temperatures differences reached at the different levels demonstrated that gutta-percha has an extremely low heat transportation potential; thus, caution should be taken to place the heat-pluggers at the point were gutta-percha should plasticize to facilitate an accurate compaction of the material in the root canal.» weiterlesen» einklappen