Clinical effect of resin hybrid ceramic onlay in repairing posterior tooth defects
Objective To investigate the clinical effect of restoration of posterior teeth with machinable CAD/CAM resin hybrid ceramic (VITA Enamic) onlays after root canal treatment. Methods 136 posterior teeth restored after root canal treatment in our hospital were selected as the research subjects. The p...
Main Authors: | , , |
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Format: | Article |
Language: | zho |
Published: |
Editorial Department of Journal of Prevention and Treatment for Stomatological Diseases
2019-01-01
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Series: | 口腔疾病防治 |
Subjects: | |
Online Access: | http://www.kqjbfz.com/EN/10.12016/j.issn.2096-1456.2019.01.006 |
Summary: | Objective To investigate the clinical effect of restoration of posterior teeth with machinable CAD/CAM
resin hybrid ceramic (VITA Enamic) onlays after root canal treatment. Methods 136 posterior teeth restored after root
canal treatment in our hospital were selected as the research subjects. The posterior teeth were restored chairside with
CAD / CAM ceramic onlays to recover occlusion relation and protect residual dental tissues. With 68 teeth in each
group, one group was restored with a machinable CAD / CAM resin hybrid ceramic (VITA Enamic) while the control
group received zirconia⁃reinforced lithium silicate ceramic (VITA Suprinity). Before bonding, all the onlays were exam⁃
ined for good adjacency, fitness and occlusion, and then the adhesive surface was etched with hydrofluoric acids. After
isolating the rubber dams in the mouths, the onlays were bonded with dual⁃cure resin cements. The patients were fol⁃
lowed up for 24 months to compare the degree of prosthesis integrity, marginal fitness, gingival health, dental integrity,
color matching and secondary caries. Results After restoration, all the onlays were in harmony with the surrounding
teeth with good aesthetic effect and suitable marginal fit. Two years later, there were no significant differences in the
marginal fitness, gingival health, dental integrity or secondary cavities between the two groups (P > 0.05). In terms of
restoration integrity, the VITA Enamic onlays (100%) were intact and displayed good retention. The group that received
VITA Suprinity had 6 onlay (9.23%) fractures and a success rate of 90.77%; however, the residual dental tissues did not
break. The difference of prosthesis integrity between the two groups was statistically significant (c2 = 4.45, P < 0.05). Conclusion Chairside CAD/CAM resin hybrid ceramic (VITA Enamic) onlays can quickly restore posterior teeth after
root canal therapy and better protect the residual dental tissue. |
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ISSN: | 2096-1456 2096-1456 |