Panagiota-Eirini Spyropoulou

Learn More
STATEMENT OF PROBLEM With the development of various zirconia core shades, questions arise regarding the effect of the shaded zirconia on the translucency of ceramic crowns. PURPOSE The purpose of this study was to investigate the translucency of the 3 Procera Zirconia shaded core materials. The hypothesis was that differences exist in the translucency of(More)
Obtaining an accurate representation of the soft tissue contours developed around an implant in the esthetic zone is crucial to the success of a restoration. The technique presented emphasizes "guiding" of the soft tissue by modifying a provisional restoration to obtain an emergence profile that appears natural and blends with the gingival contour of the(More)
Without major bone grafting procedures, anatomic challenges may dictate less than ideal implant placement. When surgical correction is impossible, it may be possible to place implants on an angle and use angled abutments to compensate. This article presents 2 patient treatments where angled abutments were used to facilitate the fabrication of an(More)
The implant-supported bar overdenture and the implant-retained fixed complete denture are appropriate treatment choices for patients with inadequate bone volume in the posterior maxilla and mandible, respectively. Computer-aided design/computer-aided manufacturing (CAD/CAM) technology has broadened the scope and application of those treatment options,(More)
STATEMENT OF THE PROBLEM Recent interest in shaded zirconia has raised questions about the relative stability of the tetragonal phase after colorant oxide additions. PURPOSE The purpose of this in vitro study was to evaluate the effects of fatigue cycling on the stability of a commercially available dental zirconia (Procera) in both unshaded and shaded(More)
This article describes an alternative technique for the fabrication of a complete-arch, implant-supported, cement-retained, fixed provisional restoration. The definitive cast is fabricated from the surgical guide and the provisional restoration is fabricated indirectly from the radiographic guide. This technique is an easy and time-saving procedure to(More)
STATEMENT OF PROBLEM Shaded versions of dental zirconia may improve initial color matching to teeth, but might change color with cyclic mechanical loading. PURPOSE The purpose of this study was to measure the color of unshaded and shaded zirconia dental ceramic before and after cyclic mechanical loading and calculate color differences (ΔE). MATERIAL AND(More)
Restoring edentulous areas with fixed prostheses can be challenging, especially when key abutment teeth are missing and implant placement is not an option. Sometimes, clinicians are faced with situations where teeth have to be connected with implants even though long-term prognosis of those connections may be questionable. This clinical report presents a(More)
  • 1