Influence of elastic recovery time on the Dimensional Stability of Polydimethylsiloxane (PDS)
The aim of this study was to determine the influence from the recovering time on the dimensional stability of polydimethylsiloxane (Speedex, Coltène/Whaledent Company, Altstätten, Switzerland) prior to type IV dental stone pouring. The double impression technique was utilized with uniform spacing of...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Polímeros
2013-01-01
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| Series: | Polímeros |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282013000400008&lng=en&tlng=en |
| _version_ | 1818043585849720832 |
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| author | Leonardo de Cesero Lígia Maria Nogarett Eduardo Gonçalves Mota Lisiane Martins Fracasso Carlos dos Reis Pereira de Araujo |
| author_facet | Leonardo de Cesero Lígia Maria Nogarett Eduardo Gonçalves Mota Lisiane Martins Fracasso Carlos dos Reis Pereira de Araujo |
| author_sort | Leonardo de Cesero |
| collection | DOAJ |
| description | The aim of this study was to determine the influence from the recovering time on the dimensional stability of polydimethylsiloxane (Speedex, Coltène/Whaledent Company, Altstätten, Switzerland) prior to type IV dental stone pouring. The double impression technique was utilized with uniform spacing of 1 mm for the wash paste, at 30 minutes, 24 hours and 72 hours after making the impression using an individual perforated metal tray. After the preparation of the impressions, six stone models were made by the standard procedure for all the impressions. The dimensional alterations (mm) of the models obtained were submitted to analysis of variance (ANOVA) and Tukey's test (α = 0.05). No statistically significant difference between the three groups (30 minutes, 24 hours and 72 hours) were recorded for either the height or diameter of the samples. However, upon comparing the results of the three groups with the metal standard model, there was a significant difference between group 1 (30 min) in relation to the diameter of the standard metal die (p = 0,047). The condensation silicone Speedex shows satisfactory dimensional stability, where dental stone models can be poured with assurance up to 72 hours after preparation of the impression. |
| first_indexed | 2024-12-10T09:04:33Z |
| format | Article |
| id | doaj.art-d23c3ab918504539af36c4e32da31c90 |
| institution | Directory Open Access Journal |
| issn | 1678-5169 |
| language | English |
| last_indexed | 2024-12-10T09:04:33Z |
| publishDate | 2013-01-01 |
| publisher | Associação Brasileira de Polímeros |
| record_format | Article |
| series | Polímeros |
| spelling | doaj.art-d23c3ab918504539af36c4e32da31c902022-12-22T01:55:11ZengAssociação Brasileira de PolímerosPolímeros1678-51692013-01-0123447347610.4322/polimeros.2013.012S0104-14282013000400008Influence of elastic recovery time on the Dimensional Stability of Polydimethylsiloxane (PDS)Leonardo de Cesero0Lígia Maria Nogarett1Eduardo Gonçalves Mota2Lisiane Martins Fracasso3Carlos dos Reis Pereira de Araujo4Pontifícia Universidade Católica do Rio de JaneiroPontifícia Universidade Católica do Rio de JaneiroPontifícia Universidade Católica do Rio de JaneiroPontifícia Universidade Católica do Rio de JaneiroUniversidade de São PauloThe aim of this study was to determine the influence from the recovering time on the dimensional stability of polydimethylsiloxane (Speedex, Coltène/Whaledent Company, Altstätten, Switzerland) prior to type IV dental stone pouring. The double impression technique was utilized with uniform spacing of 1 mm for the wash paste, at 30 minutes, 24 hours and 72 hours after making the impression using an individual perforated metal tray. After the preparation of the impressions, six stone models were made by the standard procedure for all the impressions. The dimensional alterations (mm) of the models obtained were submitted to analysis of variance (ANOVA) and Tukey's test (α = 0.05). No statistically significant difference between the three groups (30 minutes, 24 hours and 72 hours) were recorded for either the height or diameter of the samples. However, upon comparing the results of the three groups with the metal standard model, there was a significant difference between group 1 (30 min) in relation to the diameter of the standard metal die (p = 0,047). The condensation silicone Speedex shows satisfactory dimensional stability, where dental stone models can be poured with assurance up to 72 hours after preparation of the impression.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282013000400008&lng=en&tlng=enDental materialsdental impression materialselastomers |
| spellingShingle | Leonardo de Cesero Lígia Maria Nogarett Eduardo Gonçalves Mota Lisiane Martins Fracasso Carlos dos Reis Pereira de Araujo Influence of elastic recovery time on the Dimensional Stability of Polydimethylsiloxane (PDS) Polímeros Dental materials dental impression materials elastomers |
| title | Influence of elastic recovery time on the Dimensional Stability of Polydimethylsiloxane (PDS) |
| title_full | Influence of elastic recovery time on the Dimensional Stability of Polydimethylsiloxane (PDS) |
| title_fullStr | Influence of elastic recovery time on the Dimensional Stability of Polydimethylsiloxane (PDS) |
| title_full_unstemmed | Influence of elastic recovery time on the Dimensional Stability of Polydimethylsiloxane (PDS) |
| title_short | Influence of elastic recovery time on the Dimensional Stability of Polydimethylsiloxane (PDS) |
| title_sort | influence of elastic recovery time on the dimensional stability of polydimethylsiloxane pds |
| topic | Dental materials dental impression materials elastomers |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282013000400008&lng=en&tlng=en |
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