Hakan Gokturk1, Ismail Ozkocak1, Mehmet Murat Taskan2, Fatma Aytac3, Emine Sirin Karaarslan3. 1. Department of Endodontics, Faculty of Dentistry, Gaziosmanpaşa University, Tokat, Turkiye. 2. Department of Periodontology, Faculty of Dentistry, Gaziosmanpaşa University, Tokat, Turkiye. 3. Department of Restorative Dentistry, Faculty of Dentistry, Gaziosmanpaşa University, Tokat, Turkiye.
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.
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.
Entities:
Keywords:
Endodontics; infrared thermometer; post space preparation; temperature increase; thermal analysis
Authors: Doglas Cecchin; José Flávio Affonso de Almeida; Brenda P F A Gomes; Alexandre Augusto Zaia; Caio Cesar Randi Ferraz Journal: J Endod Date: 2011-03-05 Impact factor: 4.171