Tooth Loss Clinical Trial
Official title:
Evaluation of Esthetic and Biomechanical Outcome of Maxillary Anterior Single-Tooth Zirconia Implant Supported PEKK Crowns Versus Lithium Disilicate Crowns on PEKK Abutments: Randomized Controlled Trial
aim of study is to evaluate esthetic and biomechanical outcome of maxillary anterior single-tooth zirconia implant supported PEKK crowns compared to lithium disilicate crowns on PEKK abutments .
High performance polymers may be a valid alternative to other conventional materials for
abutments and crowns over zirconia implants because of their cushioning effect and elastic
modulus (5.1GPa), which absorb occlusal forces and avoid overload of the underlying bone from
the direct transmission of biting impacts ; which could optimize and preserve
osseointegration with time. Zirconia implants with high performance polymers restorations can
be considered a good alternative for replacing natural teeth.
For many years lithium disilicate has been the esthetics standard used in Veneers ,Inlays ,
onlays, occlusal veneers, partial crowns,minimally invasive crowns and Implant
superstructures due to its natural-looking tooth colouring and excellent light-optical
properties.
Due to the promising esthetics of high performance polymers as it can be veneered with
different veneering materials it would successfully restore esthetics.
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