Academic Journal
Potential complications of CAD/CAM-produced resin composite crowns on molars: A retrospective cohort study over four years.
| Title: | Potential complications of CAD/CAM-produced resin composite crowns on molars: A retrospective cohort study over four years. |
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| Authors: | Miyu Inomata, Akio Harada, Shin Kasahara, Taro Kusama, Akane Ozaki, Yusuke Katsuda, Hiroshi Egusa |
| Source: | PLoS ONE, Vol 17, Iss 4, p e0266358 (2022) |
| Publisher Information: | Public Library of Science (PLoS), 2022. |
| Publication Year: | 2022 |
| Collection: | LCC:Medicine LCC:Science |
| Subject Terms: | Medicine, Science |
| More Details: | PurposeEvaluation of the clinical performance of computer-aided design/computer-aided manufacturing-produced resin composite crowns (CAD/CAM composite crowns) on molars with a particular focus on placement location.MethodsA retrospective cohort study was performed based on the clinical records of patients with CAD/CAM composite crowns on molars (June 2016 to March 2021). The hazard ratios (HRs) and 95% confidence intervals (95% CIs) were estimated based the Cox proportional hazard model to evaluate the effect of tooth location on complication type and occurrence. Covariates included crown location (maxilla/mandible, distalmost tooth/not distalmost tooth, and first molar/second or third molar) and endodontically treated (nonvital) or untreated (vital) tooth.ResultsOverall, 362 crowns were evaluated (mean follow-up: 378 days, median: 286 days), and 106 crowns (29.3%) showed complications, most frequently crown debonding. The cumulative success and survival rates were 70.9% and 93.7%, respectively, after 1 year and 49.5% and 86.5%, respectively, after 3 years. There was no significant difference in the HRs and log-rank tests in the Kaplan-Meier curves based on crown location parameters (P > 0.05). However, placement on vital teeth was associated with higher risks than on nonvital teeth (HR, 1.55; 95% CI, 1.03-2.23). In addition, the cement as a covariate yielded a high HR.ConclusionsThe location of CAD/CAM composite molar crowns is unlikely a risk factor for complications; therefore, these crowns can be clinically applied to all molars. However, the application of such molar crowns to vital teeth and the use of a cement other than adhesive resin cement present risks. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1932-6203 |
| Relation: | https://doaj.org/toc/1932-6203 |
| DOI: | 10.1371/journal.pone.0266358 |
| Access URL: | https://doaj.org/article/9c439ae8900e4263a4879e597b9dd9a5 |
| Accession Number: | edsdoj.9c439ae8900e4263a4879e597b9dd9a5 |
| Database: | Directory of Open Access Journals |
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| ISSN: | 19326203 |
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| DOI: | 10.1371/journal.pone.0266358 |
| Published in: | PLoS ONE |
| Language: | English |