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. 2015 Oct-Dec;9(4):535-541.
doi: 10.4103/1305-7456.172630.

In vitro evaluation of temperature rise during different post space preparations

Hakan Gokturk  1 , Ismail Ozkocak  1 , Mehmet Murat Taskan  2 , Fatma Aytac  3 , Emine Sirin Karaarslan  3
Affiliations

In vitro evaluation of temperature rise during different post space preparations

Hakan Gokturk et al. Eur J Dent. 2015 Oct-Dec.

Abstract

Objective: The aim of this study was to evaluate temperature alterations on the outer root surface during post space preparation with six different post drills by using an infrared thermometer.

Materials and methods: Sixty extracted single-rooted human mandibular incisor teeth were used. After root canal obturation, the specimens were divided into six groups (n = 10). During post space preparation, the temperature rises were measured in the middle third of the roots using a noncontact infrared thermometer with a sensitivity of 0.1°C. The temperature data were transferred from the thermometer to the computer and were observed graphically.

Results: The maximum temperature rise was observed in Snowpost 2 (29.95 ± 10.2°C) (P < 0.001), but there were no significant differences among Snowpost 2 (29.95 ± 10.2°C), Snowpost 1 (24.6 ± 8.0°C), and Relyx 2 (17.68 ± 9.1°C) (P > 0.05).

Conclusions: Although water coolant used, the critical temperature rise was observed on the outer root surface in all post drill systems.

Keywords: Endodontics; infrared thermometer; post space preparation; temperature increase; thermal analysis.

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Figures

Figure 1
Figure 1
The experimental setup established to measure temperature increase in this study
Figure 2
Figure 2
The drills used in the study (a) the Rebilda post size 10 drill, (b) the rebilda post size 12 drill, (c) the Relyx fiber post size 1 drill, (d) the Relyx fiber post size 2 drill, (e) the Snowpost size 1 drill, and (f) the Snowpost size 2 drill
Figure 3
Figure 3
The mean temperature rises during the post space preparation
Figure 4
Figure 4
Temperature alteration during post space preparation with (a) Group 1, (b) Group 2, (c) Group 3, (d) Group 4, (e) Group 5, and (f) Group 6
See this image and copyright information in PMC

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