A new method to routinely achieve passive fit of ceramometal prostheses over Brånemark osseointegrated implants: a two-year report.
To maintain osseointegration, it is essential that the prosthesis fit with total passivity because the absence of a periodontal ligament makes the implant unable to adapt its position to a nonpassive framework. The traditional system of building a metal framework by melting over mechanized pieces--called gold cylinders in the Brånemark system--has been modified so these pieces are joined to the metal framework by means of physicochemical bonding. This bond is achieved by treating the metallic surfaces with a Silicoater system and a composite resin cement that sets in the mouth using an improved cementing protocol. In this paper, the clinical viability of this new philosophy, shown over 2 years, is presented. A total of 64 prostheses (39 maxillary and 25 mandibular) supported by 214 abutments, with an average observation period of 9 months, were evaluated. The results show that it is possible to routinely obtain a ceramometal prosthesis with a totally passive circular fitting while maintaining the possibility of retrieval, thus making postceramic soldering unnecessary.
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Clínica Prótesis Osteointegradas Barcelona, Spain.
D002484:Cementation; D001840:Dental Bonding; D003735:Dental Casting Technique; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D017266:Dental Prosthesis; D017268:Dental Prosthesis Retention; D005069:Evaluation Studies as Topic; D006047:Gold Alloys; D006801:Humans; D016876:Metal Ceramic Alloys; D017755:Prosthesis Fitting; D012821:Silanes; D013674:Technology, Dental / Q000379:methods
D015921:Dental Implants; D006047:Gold Alloys; D016876:Metal Ceramic Alloys; D012821:Silanes