J Korean Dent Sci.  2017 Dec;10(2):74-81. 10.5856/JKDS.2017.10.2.74.

Considerations for the Survival of Complete Arch Implant-Supported Zirconia Restorations; Status of Antagonistic Arches and Stress Distribution on Frameworks: A Case Report

Affiliations
  • 1Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea. pros53@snu.ac.kr

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

Keyword

Dental arch; Dental stress analysis; Edentulous mouth; Implant-supported dental prosthesis; Yttria stabilized tetragonal zirconia
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