Impact of design and length on the accuracy of closed tray transfer copings
Background: The aim of this study was to evaluate the accuracy of two closed-tray transfer copings for implant impressions (a new design vs. an old design) in two different lengths (short and long). Material and Methods: Four groups of transfer copings (NS - new short, NL - new long, OS - old short...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:20.500.12328/3615 |
| Acceso en línea: | http://hdl.handle.net/20.500.12328/3615 https://dx.doi.org/10.4317/jced.55588 |
| Access Level: | acceso abierto |
| Palabra clave: | Safata tancada Cop d'impressió Cop de transferència Impressió d'implant Cubeta cerrada Cofia de impresión Cofia de transferencia Impresión de implante Closed tray Impression coping Transfer coping Implant impression 616.3 |
| Sumario: | Background: The aim of this study was to evaluate the accuracy of two closed-tray transfer copings for implant impressions (a new design vs. an old design) in two different lengths (short and long). Material and Methods: Four groups of transfer copings (NS - new short, NL - new long, OS - old short and OL - old long) were tested. An epoxy resin model was prepared of missing teeth 1.4, 1.5 and 1.6. Two Alpha-Bio analogues were placed in position of teeth 1.4 and 1.6, at a 10o angulation. Two calibrated operators took 10 closed-tray impressions for each group with polyether in a Rim-Lock impression tray. Results: After measuring and comparing impressions, a significant difference was found between the two new transfer copings and the old short transfer coping. Conclusions: The new transfer coping design significantly improved impression accuracy. An adequate transfer coping design for the closed-tray impression technique can help to achieve clinically acceptable impressions for two-unit implant supported bridges. |
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