| Autor: |
Alexandre Costa Reis BRITO, Cintia Fernandes do COUTO, Cresus Vinícius Depes de GOUVÊA |
| Jazyk: |
English<br />Portuguese |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
Pesquisa Brasileira em Odontopediatria e Clínica Integrada, Vol 7, Iss 2, Pp 145-148 (2007) |
| Druh dokumentu: |
article |
| ISSN: |
1519-0501 |
| Popis: |
Purpose: To compare the compressive strength of two commercially available laboratorial resins - Solidex® (Shofu) and Cristobal® (Dentsply) - to that of a direct composite resin (Concept®; Vigodent), as a control group.Method: Five specimens of each tested material were fabricated using stainless steel matrices with the following dimensions: 8 mm of internal diameter on the base, 9 mm of internal diameter on the top and 4 mm of height. The specimens were stored in distilled water for 72 hours and submitted to an axial load by the action of a 2-mm-diameter round-end tip adapted to a universal testing machine (EMIC 500). A 200 kgf load cell was used running at a crosshead speed of 0.5 mm/min. The load and the point of failure were recorded. Results: Means, in kgf, were: Concept® (Ct) = 124.26; Cristobal® (C) =184.63; Solidex® (S) =173.58. Data (means and standard deviations) were analyzed statistically by ANOVA and Tukey’s for comparisons among the groups using the SPSS software (version 10.0). Significance level was set at á=0.05 (95%). Concept® presented significantly lower (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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