A possible risk of CAD/CAM-produced composite resin premolar crowns on a removable partial denture abutment tooth: a 3-year retrospective cohort study

• Miura Shoko

  Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry Division of Fixed Prosthodontics, Meikai University School of Dentistry

• Kasahara Shin

  Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry

• Yamauchi Shinobu

  Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry Dr. Anthony Volpe Research Center, ADA Foundation

• Katsuda Yusuke

  Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry

• Harada Akio

  Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry

• Aida Jun

  Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry

• Egusa Hiroshi

  Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry

Abstract

Purpose: To evaluate the early performance of computer-aided design/computer-aided manufacturing (CAD/CAM)-produced composite resin crown (CAD/CAM composite crown) treatment on premolars, specifically, placement on a removable partial denture (RPD) abutment tooth, and the distalmost tooth in the dental arch, as possible clinical risk factors. Methods: A retrospective cohort study (April 2014 to July 2017) was performed utilizing the clinical records of patients who received a premolar CAD/CAM composite crown treatment. The variables of time of treatment for (1) successful crowns (complication event-free) and (2) surviving crowns (clinically functional including re-luted) were estimated using Kaplan–Meier analysis. Survival distributions regarding "RPD abutment tooth" and "distalmost tooth" were analyzed with the log-rank test. Multilevel survival analyses were used to identify hazard ratios and associated risk factors. Results: Five hundred and forty-seven crowns were evaluated (mean follow-up time 1.3 ± 0.9 years) in 327 patients. A total of 87 crowns had at least one complication, with loss of crown retention being the most common (70 crowns). Estimated success and survival rates at 3 years were 71.7% and 96.4%, respectively. The risk of complications was significantly higher for an RPD abutment tooth than for a non- RPD abutment tooth. There was no significant difference between the distalmost tooth and nondistalmost tooth in the dental arch. Conclusions: The demonstrated complication rate for CAD/CAM composite crowns placed on premolars was 15.9% over a period of up to 3 years. There was a substantial risk of complications with placement of such a crown on an RPD abutment tooth.

Journal

• Journal of Prosthodontic Research

  Journal of Prosthodontic Research 63 (1), 78-84, 2019

  Japan Prosthodontic Society

Keywords

• CAD/CAM composite crown
• Distalmost tooth
• Loss of retention
• Risk factor
• RPD abutment tooth

Details

• CRID: 1390845713054263040
• NII Article ID: 130007604350
• DOI: 10.1016/j.jpor.2018.08.005
• ISSN: 18839207
• ISSN: 18831958
• Web Site: https://api.elsevier.com/content/article/PII:S1883195818302512?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S1883195818302512?httpAccept=text/plain
• Web Site: https://www.jstage.jst.go.jp/article/jpr/63/1/63_78/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2020189434
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed