Metal free, full arch, fixed prosthesis for edentulous mandible rehabilitation on four implants
Available online 7 December 2017
Technical procedure
Abstract
Purpose
The
goal of this work is to describe an implant-prosthetic protocol for
rehabilitation of edentulous mandible, by using a fixed prosthesis made
of fiber-reinforced composite material (FRC). The protocol contemplates a
minimal invasive surgery and ensures predictable and safe results, with
good aesthetic and performance combined to cost savings.
Methods
FRC
material is used to build the substructure of a prosthetic framework
supported by four short implants (5 mm long and 4 mm wide). The
prosthesis substructure is made of Trinia immersed in a matrix of epoxy
resin (FRC). It is supplied in milling blocks (pre-cured) for the
CAD/CAM (computer-aided design/computer-aided manufacturing) technique.
Implants
are placed in lower edentulous jaw in position of first molar and
canine, each side. Four month after, a resin bar is build based on a
stone model, denture teeth are placed and the occlusion is checked. The
resin bar and the stone model with milled abutments are scanned and a
FRC bar is achieved with the CAD/CAM technique. The teeth are mounted to
the substructure trough denture resin. Temporary cementation of
framework is achieved on the abutments connected to the implants.
Conclusion
A
protocol for a fixed mandibular implant-prosthetic rehabilitation is
described. The protocol contemplates a minimal invasive surgery and
ensures predictable and safe results, with good aesthetic and
performance combined to cost savings. In addition, this technique allows
performing basic surgery also in presence of atrophy.
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