新規溶媒によるバイオセラミックシーラーの再治療:溶解性、開通性、および象牙質への影響
Jemma Hanson1, Michelle Wu1, Ajay Shakya2
1Department of Endodontics, Texas A&M College of Dentistry, Dallas, Texas.
Journal of endodontics
|January 27, 2026
まとめ
Endo Sealer Solvent (ESS) およびエチレンジアミン四酢酸 (EDTA) はバイオセラミックシーラーを効果的に溶解したが、すべての試験溶媒で100%の根管開通性が達成された。溶媒の選択は、根管充填後の開通性維持における臨床転帰に影響しない。
科学分野:
- 歯内療法;歯科材料科学;生体材料
背景:
- バイオセラミックシーラーは根管治療でますます使用されている。シーラー残渣の効果的な除去は、再治療と根管開通性の維持に不可欠である。溶媒の有効性と象牙質の適合性は様々であり、比較研究が必要である。
研究 の 目的:
- バイオセラミックシーラーを溶解するためのEndo Sealer Solvent (ESS)、次亜塩素酸ナトリウム (NaOCl)、エチレンジアミン四酢酸 (EDTA)、およびクロロホルム (CHCl3) の有効性を評価する。バイオセラミックシーラーで根管充填された根管の根尖開通性を維持する際のこれらの溶媒の影響を評価する。溶媒の象牙質構造への影響を調べる。
主な方法:
- 円盤状のバイオセラミックシーラー標本を溶媒に浸漬し、重量減少を測定した。単一根管歯を充填し、溶媒を使用して根尖開通性を回復する時間を記録した。走査型電子顕微鏡で灌流後の象牙質の変化を評価した。
主要な成果:
- ESSおよびEDTAはバイオセラミックシーラーの溶解度が最も高く、NaOClおよびCHCl3を大幅に上回った。すべての試験された灌流液は、有意な時間差なしに100%の根尖開通性を達成した。走査型電子顕微鏡検査では、象牙質の浸食は見られなかった。NaOClおよびCHCl3とは異なり、ESSおよびEDTAはスメア層を効果的に除去した。
結論:
- ESSおよびEDTAは、象牙質の完全性を維持しながらバイオセラミックシーラーを溶解するのに非常に効果的である。溶解効率の違いにもかかわらず、評価されたすべての溶媒は完全な根管開通性を保証する。溶媒の選択は、歯内再治療における開通性の臨床的達成に影響しないようである。
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