Accuracy of the second pour casts using dual-arch trays
Objective: To compare, in vitro, the accuracy between dental stone casts obtained from the first and the second pour using metallic (Smart) and plastic (Triple Tray) dual-arch trays. Material and Methods: The impressions were taken using Flexitime® vinyl polysiloxane from a typodont model with a man...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | Brasil |
| Institución: | Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) |
| Repositorio: | Repositório Institucional PUCRS |
| Idioma: | inglés |
| OAI Identifier: | oai:meriva.pucrs.br:10923/983 |
| Acceso en línea: | http://hdl.handle.net/10923/983 |
| Access Level: | acceso abierto |
| Palabra clave: | ODONTOLOGIA MATERIAIS DENTÁRIOS IMPRESSIONS ELASTOMERS SILICONE DUAL-ARCH TRAY |
| Sumario: | Objective: To compare, in vitro, the accuracy between dental stone casts obtained from the first and the second pour using metallic (Smart) and plastic (Triple Tray) dual-arch trays. Material and Methods: The impressions were taken using Flexitime® vinyl polysiloxane from a typodont model with a mandibular right first molar prepared for a full crown. Ten impressions were made with each tray and poured using type IV die stone. After 1 hour, the casts were removed from the impressions and, 1-hour later, second pours were completed. The mesio-distal and the buccal-lingual widths at the gingival margin of the prepared tooth on the cast were measured in a perfil projector. The results were submitted to Student’s t-test (alpha=0.05) using SPSS version 10.0. Results: There was a statistically significant difference between the first and second pours using the plastic tray in the mesio-distal width. Conclusion: It could be suggested that a repeated pour is more accurate using a metallic tray. |
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