SURFACE ROUGHNESS OF ESTHETIC RESTORATIVE MATERIALS BY POLISHING SYSTEMS

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Journal of the Korean Academy of Pediatric Dentistry 2003;30(3):520-529.
Published online August 31, 2003.

SURFACE ROUGHNESS OF ESTHETIC RESTORATIVE MATERIALS BY POLISHING SYSTEMS

연마기구에 따른 심미 치아 수복재료의 표면 거칠기에 관한 비교 연구

박은혜, 양규호, 최남기

전남대학교 치과대학 소아치과학교실 및 치의학연구소

Abstract

Proper finishing and polishing of tooth restorations enhance the esthetics and the longevity of the restored tooth. The aims of this study were to identify an appropriate polishing system for each esthetic restorative material(Z250, Heliomolar, Dyract AP, Fuji II LC), and to compare the efficiency of polishing systems(Enhance, Sof-Lex, Composite). The control group remains untouched. The results were as follows: 1. There was no significant difference of surface roughness among the materials, while a roughness value of Z250 was the lowest of all. 2. The smoothest surface was produced by Mylar sheet on all materials. The polishing procedures, however, increased a roughness value. 3. The smoothest surfaces were produced by Sof-Lex, and there was significant difference of surface roughness between Sof-Lex and Enhance systems. 4. The smoother surfaces on the control group showed many scratches after the polishing procedures in the SEM findings.

Key Words: Esthetic restorative material, Polishing systems, Surface roughness