JOURNAL OF PROSTHETIC DENTISTRY THE

Vol. 102 No. 1      July - 2009

ISSN: 0022-3913      UBIC: 171

RESUMEN

Rehabilitation of the edentulous mandible has been revolutionized by the use of osseointegrated endosteal implants. One treatment option for such rehabilitation is an implant-supported bar and overdenture. This article presents a procedure for the fabrication of an implant-supported, cobalt-chromium milled bar and nonflanged attachment retained overdenture. The prosthesis described meets requirements for masticatory efficiency, natural esthetics, and maintenance of the health of residual tissues. The biological and mechanical considerations of the design, and the advantages, disadvantages, and contraindications of the prosthesis are discussed. (J Prosthet Dent 2009;102:46-51)

SUMMARY

The design principles and protocol for the fabrication of an implantsupported, cobalt-chromium milled bar and nonflanged attachment-retained overdenture to rehabilitate the edentulous mandible are described in accordance with sound and well-established biological and mechanical principles. The resultant prosthesis provides excellent function and satisfactory esthetics (Fig. 9). It incorporates many of the desirable characteristics of the implant-supported fixed cantilever prosthesis into a prosthesis that has the added advantage of retrievability of the tooth and gingival components for purposes of occlusal correction, home care, routine maintenance, and periodic replacement.

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