Please wait a minute...
ZJUS-B
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)  2011, Vol. 12 Issue (7): 552-562    DOI: 10.1631/jzus.B1000374
Articles     
Influence of surface roughness on the color of dental-resin composites
Razvan Ghinea, Laura Ugarte-Alvan, Ana Yebra, Oscar E. Pecho, Rade D. Paravina, Maria del Mar Perez
Department of Optics, Faculty of Science, University of Granada, Campus Fuentenueva s/n 18071, Granada, Spain, Department of Stomatology, Faculty of Odontology, University of Granada, Campus de Cartuja s/n 18071, Granada, Spain, Houston Center for Biomaterials and Biomimetics & Department of Restorative Dentistry and Biomaterials, University of Texas Dental Branch at Houston, Houston, TX 77030, USA
Download:     PDF (0 KB)     
Export: BibTeX | EndNote (RIS)      

Abstract  This study deals with the influence of surface roughness on the color of resin composites. Ten resin composites (microfilled, hybrid, and microhybrid) were each polished with 500-grit, 1200-grit, 2000-grit, and 4000-grit SiC papers. The roughness parameter (Ra) was measured using a Plμ confocal microscope, and field-emission scanning electron microscope (Fe-SEM) images were used to investigate filler morphology. Color was measured using a spectroradiometer and a D65 standard illuminant (geometry diffuse/0° specular component excluded (SCE) mode). Surface roughness decreased with grit number and was not influenced by filler size or size distribution. A significant influence of Ra on lightness (L*) was found. Lightness increased with decreases in roughness, except for specimens that underwent polishing procedure 4 (PP4; 500-grit, 1200-grit, 2000-grit, and 4000-grit SiC papers consecutively). Generally, it was found that surface roughness influenced the color of resin composites. The composites that underwent PP1 (500-grit SiC paper) exhibited significant differences in chroma (C*), hue (h°), and lightness (L*) compared to composites that underwent PP3 (500-grit, 1200-grit, and 2000-grit SiC papers consecutively) and PP4. Color difference (∆E*) between the polishing procedures was within acceptability thresholds in dentistry.

Key words： Color measurement      Dental resin composites      Roughness     
Received: 26 October 2010      Published: 04 July 2011
CLC:  R783.1  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Razvan Ghinea
Laura Ugarte-Alvan
Ana Yebra
Oscar E. Pecho
Rade D. Paravina
Maria del Mar Perez
Cite this article:

Razvan Ghinea, Laura Ugarte-Alvan, Ana Yebra, Oscar E. Pecho, Rade D. Paravina, Maria del Mar Perez. Influence of surface roughness on the color of dental-resin composites. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2011, 12(7): 552-562.

URL:

http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.B1000374     OR     http://www.zjujournals.com/xueshu/zjus-b/Y2011/V12/I7/552

[1] Hui-ping Lin, Jun Lin, Juan Li, Jing-hong Xu, Christian Mehl. In vitro remineralization of hybrid layers using biomimetic analogs[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(11): 864-873.
[2] Jun Lin, Wei-ying Zheng, Peng-ruo-feng Liu, Ning Zhang, Hui-ping Lin, Yi-jing Fan, Xin-hua Gu, Oliver Vollrath, Christian Mehl. Influence of casein phosphopeptide-amorphous calcium phosphate application, smear layer removal, and storage time on resin-dentin bonding[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2014, 15(7): 649-660.
[3] Cai-yun Mao, Jia-jia Zhao, Wei Wang, Xin-hua Gu. Effects of EDTA irrigation and water storage on the bonding durability of different adhesive resin cements to intra-radicular dentin[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2014, 15(4): 399-404.