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The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 16 (2001), No. 4     15. Aug. 2001
Int J Oral Maxillofac Implants 16 (2001), No. 4  (15.08.2001)

Page 578-582

Use of Electrosurgery and Lasers in the Presence of Dental Implants
Wilcox, Charles W. / Wilwerding, Terry M. / Watson, Patrice / Morris, Jason T.
Use of electrosurgery or laser surgery in the presence of metallic implants has been implicated in generating heat-induced injury to peri-implant bone, with the subsequent loss of osseointegration. Studies involving lasers offer conflicting results, while in the case of the electrosurg, little research has been published supporting or refuting these claims. This study measured local heat effects created by use of a unipolar electrosurgical unit, a bipolar electrosurgical unit, and a neodymium:yttrium-aluminum-garnet (Nd:YAG) laser. Absolute temperature increase was measured during an in vitro uncovering surgical procedure performed with each unit. Analysis of variance for repeated measures was performed. Second, absolute temperature increase for each unit was compared with a theoretical clinical limit of a 10°C increase. The findings suggest that use of the unipolar electrosurgical unit should be avoided, while judicious use of both the bipolar unit or the laser unit should produce temperature profiles well within clinical limits.

Keywords: dental implants, electrosurgery, heat, laser surgery