J Korean Acad Prosthodont.  2020 Jan;58(1):58-66. 10.4047/jkap.2020.58.1.58.

Implant-assisted removable partial denture using freely removable abutment in a fully edentulous patient: A case report

Affiliations
  • 1Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan, Republic of Korea. neoplasia96@hanmail.net

Abstract

Implant-Assisted Removable Partial Dentures (IARPDs) treatment is being performed in a fully edentulous patient using implant surveyed prosthesis as an abutment. Implant-supported prosthesis as an abutment of IARPDs is classified into screw-retained and cement-retained type according to the retention type, and each has advantages and disadvantages. The EZ crown system (Samwon DMP, Yangsan, Korea) has a cylinder combined with abutment, and the nickel-titanium spring in this cylinder provides a constant force on the zirconia ball to obtain retention in EZ crown system. In this patient, the natural abutment teeth of the mandibular overdenture was hopeless. We planned implant assisted removable partial denture using anterior implant surveyed prosthesis considering functional and esthetical rehabilitation, cost and patient's needs. When fabricating IARPDs using implant as abutment, we could compensate for the shortcomings of existing implant-supported prosthesis retention type and made the design of removable partial denture easy due to using EZ crown system.

Keyword

EZ crown system; Implant surveyed prosthesis; Implant-Assisted removable partial denture; Microlocking abutment system
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