4种上颌窦剥离器械对山羊平坦上颌窦底黏膜剥离长度的体外对比研究

目的:评估自制改良的镍钛4种上颌窦剥离器械对山羊平坦上颌窦底黏膜的剥离效果。方法:在建立即时可视的上颌窦底黏膜剥离长度模型的基础上,使用4种上颌窦剥离器械剥离上颌窦底黏膜,对伞形剥离器械组、探针改良型器械组、012镍钛器械组、014镍钛器械组的剥离长度进行方差分析及SNK两两组间比较。结果:4组组间剥离长度差异有统计学意义(P<0.01),SNK两两组间比较,4组剥离长度两两之间差异均有统计学意义。结论:对于平坦的上颌窦底,相比较于其他3种剥离器械,镍钛剥离器械表现出明显的优势,2种镍钛剥离器械剥离黏膜的长度均大于伞形剥离器械及探针改良型剥离器械。014镍钛剥离器械剥离上颌窦底黏膜效果优于012镍钛剥离器械。

Effects of Four Kinds of Stripping Devices on Stripping Lengths of Flat Maxillary Sinus Floor Mucosa of Goat in Vitro.

Objective: To evaluate stripping effect of the flat maxillary sinus floor mucosa with homemade modified nickel titanium four kinds of stripping device when stripping maxillary sinus floor mucosa of the goat in vitro. Methods: On the basis of establishing immediate visual model on the flat maxillary sinus floor mucosa of stripping length, we used four kinds of maxillary sinus stripping device to strip the flat bottom of the maxillary sinus mucosa, which were umbrella stripping device, probe modified stripping device, 012 nickel-titanium stripping device, the 014 nickel-titanium stripping device. Stripping length of the four groups was analyzed by ANOVA and then was compared in two groups with SNK (Student-Newman-Keuls). Results: Difference of stripping length between the four groups was statistically significant (P<0.01). Then compared in two groups with SNK, difference of stripping length of the four groups was statistically significant between the two two groups. Conclusion: Compared with the other three stripping device for the flat maxillary sinus floor, nickel titanium instruments for stripping showed obvious advantages. The length of two nickel titanium instruments were greater than umbrella stripping device and the probe modified stripping device. The effect of the maxillary sinus floor with the 014 nickel titanium was better than that of the 012 nickel titanium stripping apparatus.