Journal article
Survival analysis of crown margin repair
The Journal of the American Dental Association (1939), Vol.153(5), pp.414-420
05/01/2022
DOI: 10.1016/j.adaj.2021.08.012
PMID: 34973706
Abstract
Background. Repairing crowns with defective margins is minimally invasive and cost-effective compared with replacement. The authors' objectives were to examine the survival trajectory of crown margin repairs and to determine the factors associated with survival. Methods. Records of adult patients from January 2008 through August 2019 were reviewed for crown margin repairs completed at University of Iowa College of Dentistry. A total of 1,002 crown margin repairs were found. Each repair was followed through the end of study in 2019 or until an event (for example, additional repair, endodontic treatment, crown replacement, or extraction). A Cox proportional hazards model was used to study the relationship between selected covariates and time to event. Results. During the follow-up period, 32.8% of the repairs needed reintervention. In the final model, repair material was the only significant covariate. No difference was found between the survival of repairs done with resin-modified glass ionomer and amalgam. However, the repairs done with resin-based composite and conventional glass ionomer were more likely (1.5 times: 95% CI, 1.02 to 2.10 times; and 2 times: 95% CI, 1.40 to 2.73 times, respectively) to need reintervention than were those done with amalgam. Conclusions. Median survival time of crown margin repairs was 5.1 years (95% CI, 4.48 to 5.72 years). Median survival times for amalgam, resin-modified glass ionomer, resin-based composite, and glass ionomer repair materials were 5.7 years (95% CI, 4.80 to 6.25 years), 5.3 years (95% CI, 4.73 to 6.34 years), 3.2 years (95% CI, 2.51 to 6.19 years), and 3.0 years (95% CI, 2.53 to 3.62 years), respectively. Practical Implications. When considering crown margin repairs, resin-modified glass ionomer or amalgam is preferable to resin-based composite or glass ionomer.
Details
- Title: Subtitle
- Survival analysis of crown margin repair
- Creators
- Aditi Jain - Univ Iowa, Dept Operat Dent, Coll Dent, Room S-251,Dent Sci Bldg, Iowa City, IA 52242 USAAllison Schollmeyer - Univ Iowa, Dept Operat Dent, Coll Dent, Room S-251,Dent Sci Bldg, Iowa City, IA 52242 USATabitha Peter - Univ Iowa, Coll Dent, Dept Biostat & Computat Biol, Iowa City, IA 52242 USAXian Jin Xie - University of IowaSindhura Anamali - University of Iowa
- Resource Type
- Journal article
- Publication Details
- The Journal of the American Dental Association (1939), Vol.153(5), pp.414-420
- Publisher
- Amer Dental Assoc
- DOI
- 10.1016/j.adaj.2021.08.012
- PMID
- 34973706
- ISSN
- 0002-8177
- eISSN
- 1943-4723
- Number of pages
- 7
- Language
- English
- Date published
- 05/01/2022
- Academic Unit
- Preventive and Community Dentistry; Radiology; Oral Pathology, Radiology and Medicine; Biostatistics; Operative Dentistry; Dental Research
- Record Identifier
- 9984367753002771
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