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Volume 24 , Issue 5
September/October 2011

Pages 469472

Clinical Accuracy Outcomes of Closed-Tray and Open-Tray Implant Impression Techniques for Partially Edentulous Patients

German O. Gallucci, DMD, Dr Med Dent/Panos Papaspyridakos, DDS, MS/Linah M. Ashy, BDS, DMSc/Go Eun Kim, DMD/Nicholas J. Brady, BA/Hans-Peter Weber, DMD, Dr Med Dent

PMID: 21909490

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. Int J Prosthodont 2011;24:469472.

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