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http://dx.doi.org/10.5392/JKCA.2012.12.08.240

Analysis of the Marginal and Internal Fit of Dental Zirconia Core Using Optical Coherence Tomography(OCT)  

Kim, Jae-Hong (고려대학교 일반대학원 보건과학과 치의기공전공)
Kim, Ki-Baek (고려대학교 일반대학원 보건과학과 치의기공전공)
Publication Information
The Journal of the Korea Contents Association / v.12, no.8, 2012 , pp. 240-247 More about this Journal
Abstract
Marginal and internal fit is an important part of the longevity of dental restorations. The purpose of this study was to analysis the marginal and internal fit of zirconia core by dental CAD/CAM system using innovative and non-destructive methods such as optical coherence tomography(OCT) and compare with conventional method such as silicone replica technique(SRT). Ten dental stone models of abutment of maxillary right central incisal were manufactured and scanned. Ten zirconia cores were fabricated with commercial CAD/CAM system. To measure the marginal and internal fit of each sample, five point of fitness were measured using 2 different methods(OCT and SRT). Statistical analysis was performed using independent sample t-test(${\alpha}$=0.05). OCT and SRT groups were not significantly different(P>0.05). By this results, analysis the fitness of dental restorations using OCT were acceptable measuring method.
Keywords
Zirconia Core; Optical Coherence Tomography; Dental CAD/CAM; Dental Restoration; Marginal and Internal Fit;
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