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Publishing Language: Chinese | Open Access

Evaluation of the efficacy of CAD/CAM glass-ceramic onlays in molars with complicated oblique crown fracture

Ermei FENG1( ), Yanxia ZHANG2
Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
Department of Stomatology, The First Hospitai of Shi Jiang Zhuang City, Shijiazhuang 050011, China
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Abstract

Objective

To evaluate the clinical efficacy of CAD/CAM glass-ceramic onlays in molars with complicated oblique crown fracture within 3.0 mm subgingival.

Methods

Fifty-six molars from 56 patients with complicated oblique crown fracture within 3.0 mm subgingival were recruited after endodontic treatment and divided into 2 groups according to the restorative methods used. The glass-ceramic onlays group was restored with CAD/CAM glass-ceramic onlays, while the all-ceramic crown group received CAD/CAM all-ceramic crowns. The success rates of the restorations were analyzed, and the sulcus bleeding index (SBI), plaque index (PLI), and gingival index (GI) were recorded at the prerestoration and postrestoration stages.

Results

After one year of follow-up, the success rate of the glass-ceramic onlay group was 96.4%, and the success rate of the all-ceramic crown group was 92.9%. The difference was not statistically significant (P > 0.05). No differences in SBI, PLI, or GI were found between the glass-ceramic onlay group and the all-ceramic crown group (P > 0.05).

Conclusion

Compared with all-ceramic crowns, CAD/CAM glass-ceramic onlays can be used as the choice of restoration for molar crowns with within 3.0 mm subgingival oblique fracture.

Keywords

CAD/CAMglass-ceramiconlaysall ceramic crownmolarscrown and root fracturesulcus bleeding indexplaque indexgingival index
CLC number: R783.3 Document code: A Article ID: 2096-1456(2019)12-0775-04

References

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Journal of Prevention and Treatment for Stomatological Diseases
Volume 27 Issue 12,
December 2019
Pages 775-778
DOI: 10.12016/j.issn.2096-1456.2019.12.005

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Cite this article:
FENG E, ZHANG Y. Evaluation of the efficacy of CAD/CAM glass-ceramic onlays in molars with complicated oblique crown fracture. Journal of Prevention and Treatment for Stomatological Diseases, 2019, 27(12): 775-778. https://doi.org/10.12016/j.issn.2096-1456.2019.12.005

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Received: 10 April 2019
Revised: 19 June 2019
Published: 20 December 2019
© 2019 by Editorial Department of Journal of Prevention and Treatment for Stomatological Diseases

This article is licensed under a Creative Commons Attribution 4.0 International License.