Hybrid Prosthesis Supported by Osseointegrated Implants in Maxilla

골유착성 임프란트에 의해 지지되는 새로운 설계의 Hybrid Prosthesis

  • Lee, J.S. (Department of Prosthodontics, Korea University Gum Hospital) ;
  • Shin, S.W. (Department of Prosthodontics, Korea University Gum Hospital)
  • 이종석 (고대구로병원 치과보철과) ;
  • 신상완 (고대구로병원 치과보철과)
  • Published : 1999.02.01

Abstract

A fixed bridge is preferred as a prosthetic option supported by oral implants. However, it is very difficult to re tore edentulous maxilla with fixed prosthesis in cases with improper position and angulation of fixtures, abnormal jaw relation, and need for proper lip support. Six Br${\aa}$nemark implants were installed in edentulous maxilla opposing mandible with natural dentition. A removable hybrid prosthesis attached to a bar milled by 6 degrees was therefore designed to overcome such disadvantages of fixed prosthesis. Lateral stabilization of removable prosthesis was obtained by framework closely fitting the milled bar. Support for the prosthesis was ensured by three elevated areas on the bar. Two precision attachments(CEKA REVAX) provided appropriate direct and indirect retention without influencing support. A clinical and laboratory procedure was presented.

Keywords