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Digital veneering system enhances microtensile bond strength at zirconia core-veneer interface

Cited 8 time in Web of Science Cited 8 time in Scopus
Authors
Kim, Ki-Yeon; Kwon, Taek-Ka; Kang, Tae-Joo; Yang, Jae-Ho; Lee, Shin-Jae; Yeo, In-Sung
Issue Date
2014-12
Publisher
Japanese Society for Dental Materials and Devices
Citation
Dental Materials Journal, vol.33 no.6, pp. 792-798
Keywords
복합학Microtensile bond strengthDigital veneering systemAdhesive failureZirconia restorationSurface pretreatment
Abstract
This study investigated the effect of digital veneering system (DVS) on strengthening the bond between a zirconia core and ceramic veneer. Specimens for Groups 1 (negative control), 2 (positive control), 3, and 4 used conventional porcelain veneering technique on untreated, sandblasted, coloring agent-treated, and modifier-treated zirconia cores respectively. Group 5 used DVS, where glass ceramic veneers -produced by computer-aided milling- were fused to zirconia cores. Microtensile bond strengths (MTBS) at the interface were measured. MTBS results of Groups 1 to 5, expressed in mean (standard deviation), were 28.1 (7.3), 27.8 (6.3), 30.0 (10.2), 32.9 (8.1), and 37.8 (8.1) MPa. The DVS group had significantly higher MTBS than the negative and positive controls (p<0.05). Results showed that DVS enhanced the bond strength between zirconia core and ceramic veneer, indicating that this system could reduce adhesive failure-related complications that frequently occur at the zirconia core-veneer interface.
This study investigated the effect of digital veneering system (DVS) on strengthening the bond between a zirconia core and ceramic
veneer. Specimens for Groups 1 (negative control), 2 (positive control), 3, and 4 used conventional porcelain veneering technique on
untreated, sandblasted, coloring agent-treated, and modifier-treated zirconia cores respectively. Group 5 used DVS, where glass
ceramic veneers —produced by computer-aided milling— were fused to zirconia cores. Microtensile bond strengths (MTBS) at the
interface were measured. MTBS results of Groups 1 to 5, expressed in mean (standard deviation), were 28.1 (7.3), 27.8 (6.3), 30.0
(10.2), 32.9 (8.1), and 37.8 (8.1) MPa. The DVS group had significantly higher MTBS than the negative and positive controls (p<0.05).
Results showed that DVS enhanced the bond strength between zirconia core and ceramic veneer, indicating that this system could
reduce adhesive failure-related complications that frequently occur at the zirconia core-veneer interface.
ISSN
0287-4547
Language
English
URI
https://hdl.handle.net/10371/94318
DOI
https://doi.org/10.4012/dmj.2014-168
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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