Lasers in Medical Science

, Volume 28, Issue 6, pp 1435–1440 | Cite as

Thermodynamic effects of laser irradiation of implants placed in bone: an in vitro study

  • Chris Leja
  • Alessandro Geminiani
  • Jack Caton
  • Georgios E. Romanos
Original Article

Abstract

Lasers have been proposed for various applications involving dental implants, including uncovering implants and treating peri-implantitis. However, the effect of laser irradiation on the implant surface temperature is only partially known. The aim of this pilot study was to determine the effect of irradiation with diode, carbon dioxide, and Er:YAG lasers on the surface temperature of dental implants placed in bone, in vitro. For this study, one dental implant was placed in a bovine rib. A trephine bur was used to create a circumferential defect to simulate peri-implantitis, and thermocouples were placed at the coronal and apical aspect of the implant. The implant was irradiated for 60 s using four different lasers independently and change in temperature as well as time to reach a 10 °C increase in temperature were recorded. There was wide variability in results among the lasers and settings. Time for a 10 °C increase ranged from 0.9 to over 60 s for the coronal thermocouple and from 18 to over 60 s for the apical thermocouple. Maximum temperature ranged from 5.9 to 70.9 °C coronally and from 1.4 to 23.4 °C apically. During laser irradiation of dental implants, a surface temperature increase beyond the “critical threshold” of 10 °C can be reached after only 18 s.

Keywords

Dental implants In vitro Lasers Peri-implantitis Temperature 

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Copyright information

© Springer-Verlag London 2012

Authors and Affiliations

  • Chris Leja
    • 1
  • Alessandro Geminiani
    • 1
  • Jack Caton
    • 1
  • Georgios E. Romanos
    • 1
    • 2
  1. 1.Division of Periodontics, Eastman Institute for Oral HealthUniversity of RochesterRochesterUSA
  2. 2.School of Dental MedicineStony Brook UniversityStony BrookUSA

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