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Volume 41 , Issue 2
March/April 2021
Pages 187–192

Efficacy of Erbium:YAG Laser for Regenerative Surgical Treatment of Peri-implantitis: Clinical, Microbiological, and Biomarker Analyses

Atsuhiko Yamamoto, DDS, PhD/Takehiko Kubota, DDS, PhD/Yasutaka Komatsu, DDS, PhD/Kaname Nohno, DDS, PhD/Tadashi Yasuda, DDS, PhD/Tsurayuki Takahashi, DDS, PhD/Ryuboku Torikata, DDS/Norimasa Tsumori, DDS, PhD/Toshiaki Shibutani, DDS, PhD/Makoto Umeda, DDS, PhD/Hiromasa Yoshie, DDS, PhD

PMID: 33819321
DOI: 10.11607/prd.4071

This paper reports on a study undertaken to ascertain the efficacy of the erbium:YAG laser (EYL) for peri-implantitis treatment. A total of 12 patients with bone loss resulting from peri-implantitis were involved in this study. The treatment protocol consisted of using the EYL for implant surface debridement and deproteinized bovine bone mineral (DBBM) for bone grafting. The following parameters were analyzed: probing pocket depth (PPD), clinical attachment level (CAL), bleeding on probing (BOP), bone levels (BLs), and the lipopolysaccharide levels before and after debridement with the EYL. This study found a statistically significant improvement in PPD, CAL, BOP, and BL at 3 and 12 months postoperative. Furthermore, a statistically significant decrease in implant-surface LPS levels was observed following debridement with the EYL. These findings show that using the EYL for debridement in peri-implantitis cases is effective in decreasing LPS levels. Moreover, after partial reconstruction with DBBM grafting, BLs were restored for at least 12 months. It was shown in one case that BLs had remained stable over 6 years, which also attests to the efficacy of this treatment. The combined use of EYL and DBBM could be effective for regenerative surgical peri-implantitis treatment.

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