Effect of Various Laser Wavelengths on Temperature Changes During Periimplantitis Treatment: An in Vitro Study Publisher Pubmed



Monzavi A¹ ; Fekrazad R² ; Chinipardaz Z³ ; Shahabi S¹ ; Behruzi R⁴ ; Chiniforush N⁵ Show Affiliations
Source: Implant Dentistry Published:2018

Abstract

Purpose: This study aimed to investigate and compare temperature change during implant decontamination with different laser types (carbon dioxide [Co 2 ]/diode/neodymium-doped yttrium aluminum garnet [Nd:YAG]/erbium-doped yttrium aluminum garnet [Er:YAG]/antimicrobial photodynamic therapy [aPDT]). Material and Methods: Sixty implants were inserted into a bone block cut from a sheep’s mandible. A 3 X 8 mm vertical lesion was made at the buccal of each implant. The bone block was placed into a 37°C water bath to simulate the in vivo oral condition. A K-type thermocouple was placed in contact with the implant to register temperature changes at 3 points (apical/middle/coronal). Results: In the entire laser irradiations, the mean of temperature changes remains below 10°C. The apical temperature rise was higher than the coronal and middle regions (P < 0.05), and the apical temperature took longer time to reach the initial temperature (37°C) (P < 0.001). Temperature changes over 10°C occurred at the apical point of the implants with the Co 2 , Nd: YAG, and diode laser irradiations; however, only the Co 2 laser reached the statistical significance in this regard (P < 0.05). Conclusion: Our findings indicate the promising results of Er:YAG laser and aPDT in implant decontamination. Precaution should be taken in the application of Nd:YAG, diode, and especially Co 2 lasers. Copyright © 2018 Wolters Kluwer Health, Inc.