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Clinical outcomes of tooth-supported leucite-reinforced glass-ceramic crowns after a follow-up time of 13-15 years

Zürcher, Anina N; Hjerppe, Jenni; Studer, Stephan; Lehner, Christian; Sailer, Irena; Jung, Ronald E (2021). Clinical outcomes of tooth-supported leucite-reinforced glass-ceramic crowns after a follow-up time of 13-15 years. Journal of Dentistry, 111:103721.

Abstract

OBJECTIVES
The aim of this retrospective clinical study was to investigate the survival rate, technical and biologic complications of leucite-reinforced glass-ceramic crowns after a follow-up time of 13-15 years.
MATERIAL AND METHODS
Fifty-three patients with 131 crowns were invited to the follow-up visit. The reconstructions were re-examined clinically and radiographically using the modified USPHS criteria and periodontal parameters of probing pocket depth (PPD), plaque index (PI), sulcus bleeding index (SBI). Patient satisfaction and post-operative sensitivity of the abutment teeth were evaluated with a questionnaire. The overall survival rate and the Kaplan-Meier survival estimate were calculated both on crown and patient level. Technical and biological complications were reported descriptively on crown level. The p-value <0.05 was considered statistically significant.
RESULTS
Thirty-eight patients (12 men, 26 women) with 93 crowns were examined. The overall survival rate of all the crowns was 79.6% after a mean observation period of 14.4 ± 1.2 years. Most of the failures occurred after 11.1 years. The most common clinical failures were inacceptable ceramic fractures or chippings, which occurred in 5 out of 93 crowns (5.4%) and periodontitis, seen in 4 out of 93 teeth (4.3%). The most frequent technical complications were related to occlusal wear. Biological complications were not common.
CONCLUSIONS
Leucite-reinforced glass-ceramic crowns showed a high survival rate of 79.6% after an observation period of 13-15 years. Ceramic fractures and periodontitis accounted for the majority of clinical failures.
CLINICAL SIGNIFICANCE
Leucite-reinforced glass-ceramic crowns can be considered a safe and predictable treatment choice for restoring both anterior and posterior teeth.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Center for Dental Medicine > Clinic of Reconstructive Dentistry
Dewey Decimal Classification:610 Medicine & health
Scopus Subject Areas:Health Sciences > General Dentistry
Language:English
Date:9 June 2021
Deposited On:14 Jul 2021 14:52
Last Modified:26 Oct 2024 01:34
Publisher:Elsevier
ISSN:0300-5712
OA Status:Closed
Publisher DOI:https://doi.org/10.1016/j.jdent.2021.103721
PubMed ID:34118285

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