The first Australian full-arch implant-supported zirconia (Implant supported full arch fixed bridgework)

The dental community is increasingly moving towards non-metallic based restorations. The implant dentistry and its prosthetic applications have been at the forefront of these technological changes. Consequently, direct screw-retained full-arch bridgework was constructed to produce aesthetically and functionally appropriate morphology (shape, form & tooth arrangement). Zirconia, a bio-inert material, exhibits some form of translucency and high flexural strength due to high crystal density.

The method described in this case study was used for the treatment of a 52 years old Caucasian woman referred for surgical implant placement and final prosthetic reconstruction. Patient presented with terminal dentition; smoking history, bone loss affected by advanced chronic periodontitis but otherwise healthy with no known allergies. Treatment plan comprised initially proceeding with maxillary clearance and immediate implant placement with provisional abutments and bridgework to provide temporary support, comfort, function and aesthetics. Lower arch reconstruction to be followed in near future.

The surgical procedure was as follows: immediate placement of six fixtures in the maxilla at sites 15, 14, 13, 22, 24, 25 and excellent primary stability obtained. Initially, provisional abutments were used to house provisional bridgework. Three months later, the final impression was taken at correct bite for construction of zirconia framework and final bridgework.

Preoperative: Intra Oral view of terminal dentition and occlusal view

Post operative: occlusal view of osseointegrated implants. Optimal implant positioning for direct screw access.

Laboratory and the technician have live view of the smile dynamics.

Post operative: occlusal view of osseointegrated implants. Optimal implant positioning for direct screw access.

Initial full smile mock up assessed and approved by the patient.

Although patient had a moderate smile line, consideration was given to artificial gingival architecture using pink porcelain for an improved overall aesthetic.

Zirconia bridgework direct to fixture head

Fitting surface of the six zirconia abutments

One month in function Post Op.

The lower arch full implant supported bridgework to follow in near future

Designer Smiles Dental Centre: Cnr. Gerard and Winnie Streets, Sydney, NSW, Australia
Phone (02) 9953-5953 or (02) 9953-4189, Fax (02) 9953-4358
Cremorne 2090 Hours 7:15AM-6:00PM, M to F