Effect of polishing instruments on the surface roughness of nanofilled resin composite

Authors

Karn Pipatpunyanugoon
Wichaya Wisitrasameewong
Vasana Patanapiradej

Publication Date

2008-05-01

Abstract

Objective To evaluate the effect of different polishing instruments on the surface roughness of a nanofilled resin composite. Materials and methods Resin composite, Filtek Z350®, was condensed in an 5x4x2 mm3 block covered with a Mylar strip and then was polymerized with a curing unit for 40 seconds. One hundred and twenty specimens were randomly divided into six groups equally. The first group was a control. The others were polished with Sof-Lex® (3M), Enhance® (Dentsply), Pogo® (Dentsply), Composhape® (Intensiv) and Jet bur® (Kerr). The average surface roughness (Ra) was measured with a surface roughness tester after polishing. Surface roughness of a sample from each group was assessed using a scanning electron microscope. Data were analyzed by One-way ANOVA, at p < 0.05. Results The Sof-Lex® group demonstrated the smoothest surface which was not statistically different from the control group. However, surfaces polished with Pogo®, Enhance®, Composhape® and Jet bur® showed a statistically higher average surface roughness than the control group, respectively (p < 0.05). Conclusion Nanofilled resin composite displayed variable roughness depending on the polishing instruments used. Sof-Lex® gave the best polished surface.

DOI

10.58837/CHULA.CUDJ.31.2.9

First Page

213

Last Page

222

Recommended Citation

Pipatpunyanugoon, Karn; Wisitrasameewong, Wichaya; and Patanapiradej, Vasana (2008) "Effect of polishing instruments on the surface roughness of nanofilled resin composite," Chulalongkorn University Dental Journal: Vol. 31: Iss. 2, Article 9.
DOI: 10.58837/CHULA.CUDJ.31.2.9
Available at: https://digital.car.chula.ac.th/cudj/vol31/iss2/9