Shanghai Journal of Stomatology ›› 2016, Vol. 25 ›› Issue (3): 288-291.

• Original Articles • Previous Articles     Next Articles

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

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

  1. Hefei Stomatological Hospital. Hefei 230001, Anhui Province, China
  • Received:2015-10-23 Revised:2016-01-05 Online:2016-06-25 Published:2016-07-22

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

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