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Immediate fixed interim prostheses supported by two-stage threaded implants: methodology and results.
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1990
Year
Tissue EngineeringEngineeringSurgeryImplant InsertionBiomedical EngineeringRegenerative MedicineMaxillofacial SurgeryProsthesisRemovable ProsthesisOrthognathic SurgeryImplantable DeviceImplantologyInterim ProsthesesDental BiomechanicsTwo-stage Threaded ImplantsDentoalveolar SurgeryMandibular DentureMedicinePlastic SurgerySurgical Innovation
Implant‑supported fixed‑detachable bridges normally require several months of complete dentures for a stress‑free healing period, which many patients with remaining natural teeth find unacceptable. The authors devised an alternative technique that eliminates the need for a transitional removable prosthesis. They placed five or six Nobelpharma fixtures between the teeth and two additional distolingual fixtures, connected abutments to two of these and one symphyseal fixture at insertion, allowed the remaining fixtures to heal conventionally, and converted a pre‑existing mandibular denture into a fixed bridge supported by three implants. In seven patients, the method produced mandibular fixed‑detachable bridges without ever wearing a removable prosthesis, and long‑term implant outcomes were not adversely affected.
Restoring patients with implant-supported fixed-detachable bridges according to the protocol established by Brånemark necessitates a period of several months when complete dentures must be worn to allow for a stress-free healing period of the implants. For many patients, especially when they still have some natural teeth remaining, this is unacceptable. An approach was developed that overcomes these limitations, offering an alternative to the transitional removable approach. Five or six Nobelpharma fixtures were placed between and two additional fixtures were placed distolingual to the foramina. Abutments were connected at implant insertion to these two fixtures and to one fixture in the symphyseal region. The remaining fixtures were allowed to heal in the conventional manner. A previously constructed mandibular denture was converted to a fixed bridge supported by these three implants. This method was successfully applied in seven patients who were reconstructed with mandibular fixed-detachable bridges without ever wearing a removable prosthesis. The overall, long-term implant therapy was not adversely affected by this technique.