A single implant-supported restoration is one treatment alternative to consider for the replacement of a missing tooth. Technological advances in materials and machining have led to the development of a densely sintered aluminum oxide ceramic abutment, designed and machined using CAD/CAM technology. This manufacturing method improves management of the subgingival depth of the crown/abutment int...

This article describes the high esthetic value of a single-tooth implant immediately placed in the anterior region using a flapless approach and a custom-made zirconia-ceramic abutment and crown. The case reported illustrates the practical procedure involved in developing natural esthetics with a custom-made zirconia-ceramic prosthesis and abutment. The technique is relatively simple, can be us...

STATEMENT OF PROBLEM Static and dynamic occlusal interference frequently needs to be corrected by selective grinding of the occlusal surface of conventional cast and ceramic-fused-to-metal restorations. CAD/CAM techniques allow control of the dimensional contours of these restorations. However, parameters responsible for the occlusal form need to be determined. In most articulators, these param...

Objective. This report presents a comprehensive esthetic treatment with adhesive tooth-colored restorations in a combination with hyaluronic acid (HA) fillers of diastema in an orthodontic patient with relapse. Case Report. A 36-year-old female patient consulted about 1.5-2 mm midline diastema after an orthodontic relapse of replacing missing central incisors with lateral incisors and dark-colo...

A 46-year-old woman presented at the Department of Periodontology, University of Giessen, with mild chronic periodontitis and multiple gingival recessions in the upper jaw. Examination revealed poorly contoured metal ceramic restorations. Resulting soft tissue contours were also less than ideal from an aesthetic perspective. Oral hygiene instructions, scaling, and root planing were performed to...

The ceramic crown structures under occlusal contact are idealized as flat multilayered structures that are deformed under Hertzian contact loading. Those multilayers consist of a crown-like ceramic top layer, an adhesive layer and the dentin-like substrate. Bio-inspired design of the adhesive layer proposed functionally graded multilayers (FGM) that mimic the dentin-enamel junction in natural t...

PURPOSE The null hypothesis was tested: There is no difference between two all-ceramic crown systems, the Cerec method (CHAIR) and the IPS Empress method (LAB), with respect to occlusal precision and time expenditure for the dentist. METHODS 20 casts representing clinical situations were mounted in semi-adjustable articulators to serve as simulation models. The left lower first molars were pr...

OBJECTIVES Fracture strength is an important factor influencing the clinical long-term success of implant-supported prostheses especially in high stress situations like excessive crown height space (CHS). The purpose of this study was to compare the fracture strength of implant-supported fixed partial dentures (FPDs) with excessive crown height, fabricated from three different materials. MATE...