无仪器区域的探索和ProTaper Ultimate与ProTaper Next文件系统的体积精度:微计算机断层扫描研究
Palak Jitesh Gandhi1, Leena H Jobanputra1, Mital Hiren Prajapati1
1Department of Conservative Dentistry and Endodontics, Government Dental College and Hospital, Jamnagar, Gujarat, India.
Journal of conservative dentistry and endodontics
|June 23, 2025
概括
在根管形成过程中,ProTaper Ultimate (PTU) 文件比ProTaper Next (PTN) 文件更好地保护牙结构. 在这项微型CT研究中,PTU显示道扩张和牙体积损失较少.
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
- 生物材料工程 生物材料工程
背景情况:
- 根管形成对于有效的内牙治疗至关重要,其目的是清洁受感染的组织,同时保持天然牙解剖.
- 选择合适的仪器系统对于优化塑造结果和最大限度地减少程序复杂性至关重要.
研究的目的:
- 用ProTaper Ultimate (PTU) 和ProTaper Next (PTN) 文件系统准备的根通道中的体积变化和无仪器区域进行比较.
- 评估PTU和PTN在内牙科手术期间维持道形态的有效性.
主要方法:
- 一项体外比较研究涉及50个提取的人类下前与中度曲率 (10°-35°).
- 在仪器仪表前和后进行了微计算机断层扫描 (CT) 扫描,分辨率为13μm.
- 使用没有滑行路径的PTU (n=25,高达F2) 和使用手文件滑行路径的PTN (n=25,高达X2) 来准备根管道.
主要成果:
- 与ProTaper Next (PTN) (21.12% ±2.7%) 相比,ProTaper Ultimate (PTU) 的效果使通道体积增加显著降低 (13.20% ±1.95%).
- 此外,PTU的牙体积损失明显小 (0.588%±0.18%) 比PTN (0.95%±0.12%) 的牙体积损失明显小.
- 对未仪器化区域的分析揭示了系统之间的差异,PTU显示了表面覆盖面的潜在优势.
结论:
- 与ProTaper Next (PTN) 系统相比,ProTaper Ultimate (PTU) 系统通过最大限度地减少道扩张,提供了优越的牙结构保护.
- 提高PTU的灵活性,更小的核心直径和改进的金学可能有助于其有效地仪表道表面,同时保持牙结构的能力.
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