• Mahmut Sumer, Ilker Keskiner, Ugur Mercan, Ferhat Misir, and Soner Cankaya.
• Associate Professor, Department of Oral and Maxillofacial Surgery, University of Ondokuz Mayis, Faculty of Dentistry, Samsun, Turkey. Electronic address: msumer1970@yahoo.com.
• J Prosthet Dent. 2014 Sep 1; 112 (3): 522-5.

Statement Of ProblemMany studies have investigated the heat generated during implant preparation, but data are needed to better predict heat generation during implant insertion.PurposeThe purpose of this study was to measure the heat generated during insertion of an implant at speeds of 30, 50, and 100 rpm, and with manual insertion.Material And MethodsSixty-four uniform fresh bovine femoral cortical bone specimens were used. After the cortical bone was drilled, 3 different implant insertion speeds and the manual insertion of the implant were evaluated for 2 different implant diameters. The temperature was measured with 2 Teflon-insulated, type K thermocouples. Data were analyzed by 2-way ANOVA, and the Tukey honestly significant difference test (α=.05).ResultsThe highest thermal change for 4.1-mm-diameter implants was found at a speed of 100 rpm (9.81°C ±2.29°C), and the lowest thermal change was 3.69°C ±0.85°C at a speed of 30 rpm. A statistically significant difference was found between 100 rpm and the other 3 insertion procedures. The highest thermal change for a 4.8-mm-diameter implant was found at a speed of 100 rpm (8.79°C ±1.53°C), and the lowest thermal change was 4.48°C ±0.85°C at a speed of 30 rpm. No statistical difference was observed with manual, 30 rpm, and 50 rpm; however, a statistically significant difference was found between 100 rpm and the other 3 insertion procedures.ConclusionsManual implant insertion and at speeds of 30 rpm and 50 rpm generated lower heat compared with insertion at 100 rpm.Copyright © 2014 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.

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