Abstract:During the past few decades, unalloyed titanium has been extensively used as a material of dental implant-supported restorations but it cause gingival discoloration and unnatural appearance of the surrounding soft tissue. Currently, yttrium oxide partially-stabilized zirconia (Y-TZP) is a ceramic of special interest because of its superior mechanical properties. This study was carried out with four one piece zirconium implants embedded on a standard acrylic resin mandibular edentulous model, the abutment of zi… Show more
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