Dimensional Stability of Alginates Molds Tridimentionally Scanned / Estabilidade Dimensional de Moldes de Alginatos Escaneados Tridimensionalmente
Oliveira, Marciana Castanha de; Borges, Thais Maira; Dias, Flaviana Alves; Oltramari-Navarro, Paula Vanessa Pedron; Poleti, Marcelo Lupion; Fernandes, Thais Maria Freire.
J. health sci. (Londrina)
; 20(2)30/06/2018.
Artículo
en Inglés
| LILACS | ID: biblio-909318
Alginate is among the most used materials in dentistry to create teeth negative printing and reproduction. The goal of this study was to compare dimensional changes of alginate scanned impression materials. Thirty impressions of a standard typodont were performed using three types of alginate (Hydrogum 5; Jeltrate Plus and Avagel). The impressions were scanned by the scanner 3Shape R700T and scans were performed immediately after molding. The analysis of digital models were performed at OrthoAnalyzer ™ 3D software. Measurements were carried out in relation to the transverse dimension (intercanine, interpremolares and intermolar). Method error was evaluated through the Intraclass Correlation Coefficient (ICC) and Bland-Altman. One-way ANOVA, Dunnet Post-test were used to compare the different groups in relation to Typodont (gold standard) for the different outcome variables. The data were tabulated in Statistical Package for Social Sciences version 20.0 and Minitab 17.0 softwares to compare groups. The significance level was 5%. The posterior transverse variables (D1PM, D2PM and DM) presented a statistically significant difference regarding the gold standard (Typodont) for the plaster models performed after the Avagel molding. In the digital models performed just after molding, only in DM, the Avagel material group presented values statistically higher than the control group. The alginates Hydrogum 5 and Jeltrate Plus presented dimensions closer to the gold standard.(AU).
Biblioteca responsable:
BR1896.9
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