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Surface Roughness of Restroation Margin Preparations: A Comparative Analysis of Finishing Techniques Surface Roughness of Restroation Margin Preparations: A Comparative Analysis of Finishing Techniques

Author(s):

Isabelle Clarke, BSc, BDent; Adriana Aquilia, BSc, BDent; Luiz Eduardo Bertassoni, DDS; MAssimiliano Guazzato, DDS, DClinDent, PhD; Iven Klineberg, BSc, MDS, PhD

Date Added:

6/3/2015


Summary:

This study compared the margin profile and surface roughness created by the tips of four different finishing instruments: fine diamond, dura white stone, tungsten carbide, and ultrasonic diamond-coated tips (UDTs). The aim was to determine which of these instruments produced the smoothest finish and created the most evenly contoured margin characteristics. It was hypothesized that UDTs would produce a rougher dentin surface than a fine diamond bur, that a tungsten carbide bur would provide a smoother finish than a fine diamond, and that the dura white stone would produce an intermediate finish.

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