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Vertical misfit of laser-sintered and vacuum-cast implant-supported crown copings luted with definitive and temporary luting agents

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Vertical misfit of laser-sintered and vacuum-cast implant-supported crown copings luted with definitive and temporary luting agents

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dc.contributor.author Castillo de Oyagüe, Raquel es
dc.contributor.author Sánchez Turrión, Andrés es
dc.contributor.author López Lozano, José Francisco es
dc.contributor.author Albaladejo Martínez, Alberto es
dc.contributor.author Torres-Lagares, Daniel es
dc.contributor.author Montero Martín, Javier es
dc.contributor.author Suárez García, M. ª Jesús es
dc.date.accessioned 2017-07-24T12:12:42Z
dc.date.available 2017-07-24T12:12:42Z
dc.date.issued 2012 es
dc.identifier.citation Castillo de Oyagüe, Raquel ; Sánchez Turrión, Andrés ; López Lozano, José Francisco ; Albaladejo Martínez, Alberto ; Torres-Lagares, Daniel ; Montero Martín, Javier ; Suárez García, M. ª Jesús. Vertical misfit of laser-sintered and vacuum-cast implant-supported crown copings luted with definitive and temporary luting agents. En: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, 17 4 2012: 15- es
dc.identifier.uri http://hdl.handle.net/10550/59910
dc.description.abstract Objectives. This study aimed to evaluate the vertical discrepancy of implant-supported crown structures constructed with vacuum-casting and Direct Metal Laser Sintering (DMLS) technologies, and luted with different cement types. Study D esign. Crown copings were fabricated using: (1) direct metal laser sintered Co-Cr (LS); (2) vacuum-cast Co-Cr (CC); and (3) vacuum-cast Ti (CT). Frameworks were luted onto machined implant abutments under constant seating pressure. Each alloy group was randomly divided into 5 subgroups (n = 10 each) according to the cement system utilized: Subgroup 1 (KC) used resin-modified glass-ionomer Ketac Cem Plus; Subgroup 2 (PF) used Panavia F 2.0 dual-cure resin cement; Subgroup 3 (RXU) used RelyX Unicem 2 Automix self-adhesive dual-cure resin cement; Subgroup 4 (PIC) used acrylic/urethane-based temporary Premier Implant Cement; and Subgroup 5 (DT) used acrylic/urethane-based temporary DentoTemp cement. Vertical misfit was measured by scanning electron microscopy (SEM). Two-way ANOVA and Student-Newman-Keuls tests were run to investigate the effect of alloy/fabrication technique, and cement type on vertical misfit. The statistical significance was set at ? = 0.05. Results. The alloy/manufacturing technique and the luting cement affected the vertical discrepancy (p < 0.001). For each cement type, LS samples exhibited the best fit (p < 0.01) whereas CC and CT frames were statistically similar. Within each alloy group, PF and RXU provided comparably greater discrepancies than KC, PIC, and DT, which showed no differences. Conclusions. Laser sintering may be an alternative to vacuum-casting of base metals to obtain passive-fitting implant-supported crown copings. The best marginal adaptation corresponded to laser sintered structures luted with glass-ionomer KC, or temporary PIC or DT cements. The highest discrepancies were recorded for Co-Cr and Ti cast frameworks bonded with PF or RXU resinous agents. All groups were within the clinically acceptable misfit range. es
dc.title Vertical misfit of laser-sintered and vacuum-cast implant-supported crown copings luted with definitive and temporary luting agents es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/medoral.17997 es
dc.type.hasVersion VoR es_ES

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