超声预备牙体表面的三维形貌分析

上海口腔医学 ›› 2016, Vol. 25 ›› Issue (3): 288-291.

超声预备牙体表面的三维形貌分析

侯永福, 边华琴, 张磊, 孙珍

合肥市口腔医院, 安徽合肥 230001

收稿日期:2015-10-23 修回日期:2016-01-05 出版日期:2016-06-25 发布日期:2016-07-22
通讯作者: 张磊,Tel: 0551-62628878,E-mail: 1291180408@qq.com E-mail:hyfedward@163.com
作者简介:侯永福（1981-）,男,博士,主治医师,

3-D surface topography of ultrasonic preparation tooth: A pilot study

HOU Yong-fu, BIAN Hua-qin, ZHANG Lei, SUN Zhen

Hefei Stomatological Hospital. Hefei 230001, Anhui Province, China

Received:2015-10-23 Revised:2016-01-05 Online:2016-06-25 Published:2016-07-22

摘要/Abstract

摘要： 目的了解超声制备牙体的表面三维形貌特征。方法将纳入的10颗上颌前磨牙,按照临床烤瓷冠牙体预备要求及步骤,完成牙体初步预备,形成的浅凹形肩台,采用分半预备,牙体一半（对照侧）使用常规马尼车针制备肩台及抛光,另一半（超声处理侧）依次使用超声预备车针PM1/PM2/PM4制备肩台及抛光,完成肩台边缘线,使肩台均匀下移约0.5 mm。通过电镜及白光干涉仪观察、记录表面三维粗糙度、表面偏态,采用SPSS13.0软件包对所得的各组数据进行独立样本t检验分析。结果扫描电镜及白光干涉仪均观察到,对照组表面旋转器械的砂石磨削痕迹明显;与处理组相比,呈现更细密的波纹状,而处理组波纹痕迹的上表面被较平整的小平面覆盖;超声处理组与对照组相比,处理组表面粗糙度以及表面偏态均显著小于对照组（P=0.011,P=0.000）。结论超声预备的牙体表面形貌较常规旋转器械更平整、光滑。

关键词: 超声, 三维表面形貌, 牙体预备

Abstract: PURPOSE: To evaluate the 3-D surface topography of ultrasonically prepared tooth. METHODS: Ten extracted human maxillary premolars were prepared for crowns. A split-tooth model was used to refine the margins: half of the margin was finished with traditional rotary instruments, the other with ultrasonic instruments. The 3-D profiles of the prepared surface were observed under scanning electron microscopy and Talysurf CCI 3000 non-contact 3D profiler, and a quantitative comparison of 3-D surface roughness average(SA) and the surface of skewness(SSK) was conducted with Talymap Gold software. The data were analyzed by independent sample t test using SPSS13.0 software package. RESULTS: The surface finished with ultrasonic instruments exhibited a smoother surface. 3-D surface roughness analysis showed that the SA and SSK of surfaces made by ultrasonic instruments were significantly lower, compared with surfaces produced using conventional rotary instruments. CONCLUSIONS: The ultrasonic instruments produce surface in better condition than the conventional rotary instruments.

Key words: Ultrasonic, 3-D surface topography, Tooth preparation

中图分类号:

R783.2

侯永福, 边华琴, 张磊, 孙珍. 超声预备牙体表面的三维形貌分析[J]. 上海口腔医学, 2016, 25(3): 288-291.

HOU Yong-fu, BIAN Hua-qin, ZHANG Lei, SUN Zhen. 3-D surface topography of ultrasonic preparation tooth: A pilot study[J]. Shanghai Journal of Stomatology, 2016, 25(3): 288-291.

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