| Autor: |
Del Acqua, Marcelo Antonialli, Chávez, Alejandro Muñoz, Castanharo, Sabrina Maria, Compagnoni, Marco Antonio, Mollo Jr, Francisco de Assis |
| Zdroj: |
International Journal of Oral & Maxillofacial Implants; 2010, Vol. 25 Issue 6, p1153-1158, 6p |
| Abstrakt: |
Purpose: This in vitro study compared the dimensional accuracy of two impression techniques: Duralay splinted impression copings (D) and metal splinted impression copings (M) for implant-supported prostheses. Materials and Methods: A master cast with four parallel implant abutment analogs and a passive framework were fabricated. Vinyl polysiloxane impression material was used for all impressions with a metal stock tray. Two groups (D and M) were tested (n = 5). The measurement method employed was just one titanium screw tightened to the framework. Each group's measurements were analyzed using software that received the images of a video camera coupled to a stereomicroscope at 3100 magnification. The results were analyzed statistically (t test). Results: The mean values of abutment/framework interface gaps were: master cast = 32 m (SD 2), group D =165 m (SD 60), and group M = 69 m (SD 36). There was a statistically significant difference between the D and M groups (P .001). Conclusion: Under the limitations of this study, it could be suggested that a more accurate working cast can be fabricated using metal splinted impression copings. Int J Oral Maxillofac Implants 2010;25:1153-1158. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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