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- Title
µCT-3D visualization analysis of resin composite polymerization and dye penetration test of composite adaptation.
- Authors
YOSHIKAWA, Takako; SADR, Alireza; TAGAMI, Junji
- Abstract
This study evaluated the effects of the light curing methods and resin composite composition on composite polymerization contraction behavior and resin composite adaptation to the cavity wall using μCT-3D visualization analysis and dye penetration test. Cylindrical cavities were restored using Clearfil tri-S Bond ND Quick adhesive and filled with Clearfil AP-X or Clearfil Photo Bright composite. The composites were cured using the conventional or the slow-start curing method. The light-cured resin composite, which had increased contrast ratio during polymerization, improved adaptation to the cavity wall using the slow-start curing method. In the μCT-3D visualization method, the slow-start curing method reduced polymerization shrinkage volume of resin composite restoration to half of that produced by the conventional curing method in the cavity with adhesive for both composites. μCT-3D visualization method can be used to detect and analyze resin composite polymerization contraction behavior and shrinkage volume as 3D image in the cavity.
- Subjects
POLYMERIZATION; VISUALIZATION; THREE-dimensional imaging; DYES &; dyeing
- Publication
Dental Materials Journal, 2018, Vol 37, Issue 1, p71
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2016-323