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The evaluation of surface roughness and polishing time between polishing systems

The evaluation of surface roughness and polishing time between polishing systems

Article information

Restor Dent Endod. 2011;36(2):119-124
Publication date (electronic) : 2011 March 31
doi : https://doi.org/10.5395/JKACD.2011.36.2.119
1Department of Dentistry, Ewha Woman's University Mokdong Hospital, Seoul, Korea.
2Department of Conservative Dentistry, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, Korea.
Correspondence to Jeong-Won Park, DDS, PhD. Associate Professor, Department of Conservative Dentistry, Gangnam Severance Hospital, Yonsei University College of Dentistry, 146-92 Dogok-dong Gangnam-gu, Seoul, Korea 135-720. TEL, +82-2-2019-1350; FAX, +82-2-3463-4052; pjw@yuhs.ac
Received 2011 January 19; Revised 2011 February 22; Accepted 2011 February 23.

Abstract

Objectives

The purpose of this experiment was to evaluate four different polishing systems of their polishability and polishing time.

Materials and Methods

4 mm diameter and 2 mm thickness Teflon mold was made. Z-250 (3M ESPE) hybrid composite resin was slightly overfilled and pressed with slide glass and cured with Optilux 501 for 40 sec each side. Then the surface roughness (glass pressed: control group) was measured with profilometer. One surface of the specimen was roughened by #320 grit sand paper and polished with one of the following polishing systems; Sof-Lex (3M ESPE), Jiffy (Ultradent), Enhance (Dentsply/Caulk), or Pogo (Dentsply/Caulk). The surface roughness and the total polishing time were measured. The results were analyzed with one-way ANOVA and Duncan's multiple range test.

Results

The surface roughness was lowest in Pogo, and highest in Sof-Lex. Polishing times were shortest with Pogo, and followed by the Sof-Lex, Enhance and Jiffy.

Conclusions

One-step polishing system (Pogo) is very effective to get the smooth surface in a short time, therefore it can be recommended for final polishing system of the restoration.

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Article information Continued

Figure 1

Surface roughness (Ra, µm) of composite resins with 4 different polishing systems.

Figure 2

Polishing time (seconds) of 4 different polishing systems.

Figure 3

SEM image of the polished composite surface with each polishing system (left ×100, right ×10,000). SEM, scanning electron microscopr.

Table 1

Polishing systems used in this experiment

Table 1

Table 2

Surface roughness and polishing time for each polishing system (n = 13)

Table 2

Different superscript in the same column means statistically significant difference (p < 0.05).