Comparative study of the polyvinyl siloxane technique with resin-splinted transfer copings used for multiple implant abutment impressions.

Vinícius F Ferreira, Eliane P Barboza, Cresus Vinícius D Gouvêa, Guilherme M Bianchini, Flávio Mussallem, Waldimir R Carvalho

Department of Prosthodontics, Brazilian Institute of Periodontology, Rio de Janeiro, Brazil.

Implant dentistry 2012 Feb

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STATEMENTS OF PROBLEM: The lack of passivity in implant dentistry may result in failures. Therefore, impression is the first procedure in the fabrication of a passive prosthesis. The aim of this study is to compare the polyvinyl siloxane technique with a resin-splinted transfer copings used for multiple implant abutment impression. A master cast was obtained from an edentate ridge. From the master cast, 30 casts were obtained using 3 different impression techniques. Control technique was made with polyvinyl siloxane. Resin-splinted transfer copings in condensation siloxane or irreversible hydrocolloid were used as test. The distances between analogs were obtained using a profile projector. Statistical analysis was carried out using 1-way analysis of variance. No significant difference among the 3 impression techniques (P > 0.05) was observed. Resin-splinted transfer copings in condensation siloxane or irreversible hydrocolloid produced impressions as accurately as polyvinyl siloxane.

Citation

Vinícius F Ferreira, Eliane P Barboza, Cresus Vinícius D Gouvêa, Guilherme M Bianchini, Flávio Mussallem, Waldimir R Carvalho. Comparative study of the polyvinyl siloxane technique with resin-splinted transfer copings used for multiple implant abutment impressions. Implant dentistry. 2012 Feb;21(1):72-6