The evaluation of color and color difference according to the layering placement of Incisal shade composites on the body composites of the indirect resin restoration.
10.5395/JKACD.2011.36.1.37
- Author:
Su Jung PARK
1
;
Han Young LEE
;
Myong Yun NAH
;
Hoon Sang CHANG
;
Yun Chan HWANG
;
Won Mann OH
;
In Nam HWANG
Author Information
1. Department of Conservative Dentistry, Chonnam National University School of Dentistry, Gwangju, Korea. hinso@jnu.ac.kr
- Publication Type:Original Article
- Keywords:
CIE L*a*b* value;
Color;
Color difference;
Incisal shade;
Indirect resin restoration;
Layering;
Tescera ATL
- MeSH:
Composite Resins;
Inlays
- From:Journal of Korean Academy of Conservative Dentistry
2011;36(1):37-49
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVES: The aim of this study was to evaluate the surface color of indirect resin restoration according to the layering placement of different shade of incisal composite. MATERIALS AND METHODS: In this study, CIE L*a*b* value of 16 Body composite of Tescera ATL (Bisco, Schaumburg IL,USA) was measured by spectrophotometer (NF999, Nippon Denshuku, Japan), and compared to CIE L*a*b* value of Vitapan shade guide. Nine shade Incisal composite of Tescera ATL were build-up to 1 mm thickness on Body composites inlay block, and CIE L*a*b* value was measured. Incisal composite was ground to 0.5 mm thickness and CIE L*a*b* value was re-measured. Color difference between Body composite and Incisal composites layered on Body composite was calculated as a function of thickness. RESULTS: Color difference between corresponding shade of Tescera Body composite and Vitapan shade guide was from 6.88 to 12.80. L* and b*value was decreased as layering thickness of Incisal composite on Body composite was increased. But, a* value did not show specific change tendency. CONCLUSIONS: Surface color difference between Body composites and Incisal composites layered on Body composite was increased as the layering thickness of Incisal composite increased (p < 0.05).
