Implant Supported Over Dentures
Over-dentures are one of the traditional treatment modalities for completely edentulous patients. Until recently, one of the most challenging areas in implant dentistry was to achieve passive insertion of a cast screw-retained metal framework for a bar-retained over-denture or a fixed partial denture. There are several ways to fabricate an implant supported over-denture:
The conventional standard of care treatment includes two implants in the anterior mandible and two ball or Locator* attachmentsAfter receiving the framework from the lab, occasionally we had to section it, connecting the segments with acrylic resin and picking up the united framework in an impression to return to the lab for soldering or welding.
An accurate impression is taken, the model is scanned and an over-denture bar is designed using specialized software and equipment. (Implant/Cad software).
The final design is then milled using a pantogram milling device. The lab can create a wide variety of bar designs and attachment configurations.
- Full mouth extractions.
- Immediate complete upper and lower dentures.
Four months post extractions:
Re-evaluation and assessment of bone volume and quality for implant placement.
Upper and lower titanium alloy milled bars where fabricated.
- Pick-up, open tray impressions were taken.
- Upper and lower milled bars were fabricated. Implant supported over-dentures were constructed and delivered.
- One year follow-up revealed an extremely happy patient,
- no deterioration of the bars or prostheses.