根尖手术中超声骨刀对根尖切面粗糙度的影响

doi:10.13701/j.cnki.kqyxyj.2020.04.015

摘要/Abstract

摘要： 目的: 比较超声骨刀、裂钻车针和金刚砂车针切除根尖后切面粗糙度的差异。方法: 收集符合纳入标准的离体牙60个,随机分为3组(每组20个),分别使用超声骨刀、裂钻车针和金刚砂车针切除根尖3 mm,检测并记录切面粗糙度值Ra;体视显微镜下观察切面形态。结果: 超声骨刀、裂钻车针和金刚砂车针3组的根尖切面粗糙度值Ra分别是(0.470±0.071) μm、(0.567±0.100) μm和(2.354±0.313) μm。超声骨刀组根尖切面最光滑,金刚砂车针组根尖切面最粗糙,结果存在显著性差异(P<0.01);而超声骨刀与裂钻车针组结果无统计学差异(P>0.05)。结论: 与传统的裂钻和金刚砂车针相比,在根尖手术中使用超声骨刀进行根尖切除,根尖切面粗糙度较小,表面更加光滑。

关键词: 根尖手术, 根尖切除, 表面粗糙度

Abstract: Objective: To compare the difference in root-end surface roughness after root-end resection by piezosurgery, fissure bur, and diamond bur. Methods: 60 teeth according to inclusion criteria were randomly divided into three groups (piezosurgery group, fissure bur group, and diamond bur group). Then, three group teeth were removed root tip 3mm respectively by piezosurgery , fissure bur, and diamond bur. The root-end surface roughness (Ra) was measured and the surface morphology was observed by microscope. Results: The Ra values of three groups were respectively (0.470±0.071) μm, (0.567±0.100) μm, and (2.354±0.313) μm. Significant difference was found between piezosurgery group and diamond bur group (P<0.01). There was no statistically difference between piezosurgery group and fissure bur group (P>0.05). Conclusion: Compared to traditional fissure bur and diamond bur, root-end resection with piezosurgery in apical surgery will produce smoother root-end surface.

Key words: root apical surgery, root-end resection, root-end surface roughness

马艳群. 根尖手术中超声骨刀对根尖切面粗糙度的影响[J]. 口腔医学研究, 2020, 36(4): 369-371.

MA Yanqun. Effect of Piezosurgery on Root-end Surface Roughness in Root Apical Surgery[J]. Journal of Oral Science Research, 2020, 36(4): 369-371.

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