要 旨 波長 Er:YAG レーザー光は 2.94 μm の水に極めてよく吸収され軟組織と硬組織の蒸散も可能であることから,歯周 治療領域では主に炎症性肉芽組織と歯石のデブライドメントに用いられてきた.近年 Er:YAG レーザーの表面のみに 限局した血餅形成能を応用した骨再生の新術式である Er:YAG laser-assisted bone regenerative therapy(Er-LBRT)を開発 し,既存の術式と比較して同等以上の効果を得ている.また,インプラント周囲炎治療にも応用され良好な結果を示 している.本稿では Er-LBRT の臨床症例を紹介し,文献を参考に解説する. キーワード:歯周組織再生治療,インプラント周囲炎治療,骨再生,血餅形成,Er:YAG レーザー
AbstractThe 2.94 μm wavelength Er:YAG laser is strongly absorbed by water and is able to effectively ablate both soft and hard tissues. In periodontal treatment, Er:YAG lasers are used to debride inflammatory granulation tissue and calculus. Recently, we developed a novel bone regenerative procedure, Er:YAG laser-assisted bone regenerative therapy (Er-LBRT), which induces blood clot coagulation in the superficial areas of grafted bone. We have applied this technique in periodontal regenerative therapy. Er-LBRT achieved successful clinical outcomes that are more than equivalent to those seen with conventional periodontal regenerative therapy. Furthermore, Er-LBRT was applied to regenerative therapy in peri-implantitis treatment. In this article, the Er-LBRT procedure is introduced and its effectiveness is discussed based on clinical evidence.
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