Journal of Korean Dental Science

Korean Academy of Dental Science (대한치의학회)
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Considerations for the Survival of Complete Arch Implant-Supported Zirconia Restorations; Status of Antagonistic Arches and Stress Distribution on Frameworks: A Case Report

  • Choi, Jung-Yoo (Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University) ;
  • Sim, Jae-Hyuk (Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University) ;
  • Yeo, In-Sung Luke (Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University)
  • Received : 2017.07.10
  • Accepted : 2017.12.12
  • Published : 2017.12.30
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Abstract

This report describes two cases of complete arch implant-supported restorations. The first patient had seven dental implants in each arch with monolithic zirconia frameworks. At four weeks' follow-up, the one-piece maxillary framework was fractured, which was re-designed and re-fabricated using laser-sintered cobalt-chrome alloy. The second patient had four implants in the mandible only. A mandibular monolithic zirconia framework and a maxillary conventional complete denture were fabricated and delivered. At five years' follow-up, the patient reported no significant discomfort. Careful consideration and monitoring of the status of antagonistic arches and stress distribution on zirconia frameworks were suggested for complete arch implant-supported fixed restorations.

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