用酸基密封剂填充的形根通道中的空隙和边缘空隙:微CT研究
Isabella Marian Lena1, Cristiana Pereira Malta1, Tamyres Veleda Fonseca2
1Programa de Pós-Graduação em Ciências Odontológicas, Universidade Federal de Santa Maria(UFSM), Santa Maria, Rio Grande do Sul, Brasil.
Brazilian dental journal
|January 15, 2026
概括
与BioRoot RCS (BRR) 相比,Bio-C Sealer (BCS) 证明了圆形根通道的优异填充. BCS导致空洞和边缘差距更少,这表明内牙治疗中的密封能力更好.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 牙科材料科学 牙科材料科学
- 生物材料是一种生物材料.
背景情况:
- 有效的根管封闭对于内牙治疗成功至关重要.
- 圆形根管形态对完全穿透密封体和没有空隙的填充提出了挑战.
- 基于酸的密封剂由于其生物活性特性而越来越多地使用.
研究的目的:
- 为了比较预混合酸密封剂 (Bio-C Sealer, BCS) 与酸密封剂 (BioRoot RCS, BRR) 在圆的根通道中的空白百分比和边际间隙形成.
- 为了评估密封器类型对根运河填充质量的影响,使用单形技术.
- 评估密封器的表面形态,并将其与其填充性能相关联.
主要方法:
- 准备了84颗带有圆形根通道的牙,并将其分为两组 (每组n=42) 用于BCS或BRR密封剂的应用.
- 微计算机断层扫描 (micro-CT) 用于量化顶,中,椎根三分之一的空隙和边缘隙间.
- 扫描电子显微镜 (SEM) 检查了牛牙盘上的BCS和BRR的表面形态.
主要成果:
- 与BioRoot RCS (BRR) 相比,Bio-C Sealer (BCS) 的边际差距和整体空隙百分比明显较低 (p<0.01).
- 虽然BRR在宫三分之一中差距较少,但BCS在所有根三分之一中表现一致 (p>0.05).
- SEM揭示了BCS的一致,紧的结构,与BRR的多孔表面和更大的空隙形成鲜明对比. 在中部和顶端段中,BRR显示了更多的差距.
结论:
- 与BioRoot RCS (BRR) 相比,Bio-C Sealer (BCS) 的填充能力优越,并且在圆的根通道中减少了空隙形成.
- BCS的均结构有助于其在实现完整密封的更好的性能.
- 这些发现表明,BCS可能是一个更可靠的选择,用于阻断具有挑战性的圆形根管解剖学.
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