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Temperature change during non-contact diode laser irradiation of implant surfaces.
Geminiani, Alessandro; Caton, Jack G; Romanos, Georgios E.
Afiliação
  • Geminiani A; Division of Periodontology, Eastman Institute for Oral Health, University of Rochester, Rochester, NY, USA.
Lasers Med Sci ; 27(2): 339-42, 2012 Mar.
Article em En | MEDLINE | ID: mdl-21274734
A temperature increase of more than 10°C can compromise bone vitality. Laser radiation with different wavelengths has been used for the treatment of peri-implantitis, but little is known about the effect of laser irradiation on temperature rise on the implant surface. In this study, the temperature gradient (∆T) generated by laser irradiation of implant surface using two diode lasers (810 nm and a 980 nm) with 2 W of power has been recorded by two thermocouples (one in the cervical area and one in the apical area) and studied. The 810-nm diode laser showed the following results: after 60 s of irradiation with 2 W of continuous mode the temperature gradient in the cervical area of the implant (∆Tc) was 37.2°C, while in the apical area (∆Ta) was 27.2°C. The 980-nm diode laser showed the following results: after 60 s of irradiation with 2 W continuous mode ∆Tc was 41.1°C, and ∆Ta was 30.6°C. The 810-nm diode laser with 2 W continuous mode generated a temperature increase of 10°C after only 14 s. The 980-nm diode lasers groups produced a much more rapid temperature increase. In only 12 s, the continuous wave of 980 nm reached the 10°C temperature rise. From the present in vitro study it was concluded that the irradiation of implant surfaces with diode lasers may produce a temperature increase above the critical threshold (10°C ) after only 10 s.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Temperatura / Implantes Dentários / Lasers Semicondutores Idioma: En Revista: Lasers Med Sci Assunto da revista: BIOTECNOLOGIA / RADIOLOGIA Ano de publicação: 2012 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Temperatura / Implantes Dentários / Lasers Semicondutores Idioma: En Revista: Lasers Med Sci Assunto da revista: BIOTECNOLOGIA / RADIOLOGIA Ano de publicação: 2012 Tipo de documento: Article País de afiliação: Estados Unidos