Clinical accuracy outcomes of closed-tray and open-tray implant impression techniques for partially edentulous patients
Gallucci, G.O.; Papaspyridakos, P.; Ashy, L.M.; Kim, G.E.; Brady, N.J.; Weber, H.-P.
International Journal of Prosthodontics 24(5): 469-472
2011
ISSN/ISBN: 0893-2174 PMID: 21909490 Document Number: 648139
The aim of this research was to compare the accuracy outcomes of open- and closed-tray implant impressions for partially edentulous patients. Eleven partially edentulous spaces in seven patients with two existing implants for fixed partial dentures were included. Group I (closed-tray) and group II (open-tray) were compared using microcomputed tomography scanning. No statistically significant differences were found between the closed- and open-tray techniques (P = .317). The subjective evaluation of patient comfort showed no differences with either impression technique. There were no differences seen between open- and closed-tray impression techniques in partially edentulous patients when implants had less than 10 degrees of angulation.