05) showed that Kooliner was significantly affected by all disinfection
cycles (p < 0.05) when compared with baseline measurements. New Truliner resin was significantly affected by three and four cycles of microwave disinfection when compared with baseline measurements (p < 0.05). For Tokuyama Rebase II, Ufi Gel hard, and Lucitone 550, no significant dimensional changes were found. Conclusions: Microwave disinfection promoted shrinkage of Kooliner and New Truliner. The dimensional stability of Tokuyama Rebase II, Ufi Gel Hard, and Lucitone 550 was not affected by microwave disinfection. "
“Severe bilateral cleft-lip/palate patients are difficult to manage even if nasoalveolar molding therapy is advocated before surgical repair. A 5-day-old male infant with bilateral cleft-lip-palate was managed with the nasoalveolar molding technique. Periodic adjustments of the Selleckchem GSK1120212 appliance were continued every week to mold the nasoalveolar complex into the desired shape for the 5 months of infancy. The cleft width of 12 mm on the right and 14 mm on the left side was completely reduced, and the Ku-0059436 in vitro absent columella was lengthened to 6 mm with the active molding appliance. The horizontal bar of the nasal stent of the appliance was modified by adding an additional 1 mm layer of resilient liner on the tissue surface to achieve rapid columellar lengthening.
In severe bilateral cleft-lip/palate cases, simple modifications in the appliance can achieve rapid results. “
“Purpose: Previous studies considering retention of cast metal restorations to implant abutments incorporated some degree of frictional fit due to internal surface nodules and
roughness of the restoration. In comparison, CAD/CAM restorations have minimal surface irregularities, possibly impacting retention. There is insufficient knowledge of retentive force of CAD/CAM restorations to titanium abutments, and therefore the topic warrants further investigation. This in vitro study investigated the retention of all-ceramic CAD/CAM restorations to three different prefabricated implant abutments using five different cements. Materials and Methods: A total of 150 Astra Tech dental implant abutments were used, with each group of 50 being subdivided into five groups selleck chemical of 10. An optical impression of each size of abutment was made with the CEREC 3D intraoral camera. A full-coverage restoration was designed and milled with an enlarged, conical-shaped occlusal surface, which served to secure the restoration into a brass jig used with a universal testing machine. Five different cements were used with three different-sized abutments. Following cementation, the implant/abutment/restoration assemblies were stored for 24 hours at 37°C in 100% humidity. A pull-out test using a universal testing machine, set at a 0.5 mm/min crosshead speed, was used to evaluate retention of the individual restorations. The load required to remove each all-ceramic restoration was recorded.