Esthetic implant solutions in the periodontally compromised anterior region. Expanding the indications for immediate implant placement with the socket rebuilding technique (SRT).

Recent literature has shown that tooth extraction in the esthetic zone is followed by enormous amounts of ridge reduction caused by bone and soft tissue remodeling. The clinical implication of this, among other factors that warrant discussion, is the limitations regarding immediate implant placement in the esthetic zone. On the other hand, staged approaches - even those combined with alveolar ridge preservation techniques and/or alveolar ridge reconstruction - do not always show predictable results, so that esthetic compromises are quite common.

Five-Year Volumetric Evaluation of Periodontally Compromised Sites Restored by Immediate Implant Restorations.

The aim of the present study was the retrospective evaluation of the distance of the labial hard and soft tissue margins from the implant shoulder in 24 periodontally compromised sites that were restored by immediate implant restorations. Volumetric analysis was performed 5 years postoperatively using cone beam computed tomography with limited field of view. In all cases, a labial radiopaque plate component was apparent 5 years postoperatively coronal to the implant shoulder (3.

Comparison of fracture resistance and fracture characterization of bilayered zirconia/fluorapatite and monolithic lithium disilicate all ceramic crowns.

Purpose: To compare the fracture resistance between bilayered zirconia/ fluorapatite and monolithic lithium disilicate heat-pressed crowns and characterize the mode of fracture failure.

Materials And Methods: Thirty crown samples were sequentially fitted on a mandibular right first molar metal replica of an ivory prepared molar tooth. The crown specimens were divided in three groups (A, B, and C; n = 10 for each group).

Evaluation of alternative approaches in designing CAD/CAM frameworks for fixed partial dentures.

Background: The need for proper framework support for the veneer porcelain in fixed partial dentures (FPDs) has been well documented. The aim of this study was to compare the variations of the support provided by frameworks designed directly on the computer, or indirectly through scanning a wax pattern.

Materials And Methods: For each of the six upper anterior FPDs that were involved in the study, prior to milling one framework was designed conventionally in wax and scanned and another one was directly digitally designed.

Three-dimensional computerized stress analysis of commercially pure titanium and yttrium-partially stabilized zirconia implants.

Purpose: The purpose of this study was to use three-dimensional finite element analysis to analyze stress distribution patterns in Re-Implant implants made of commercially pure titanium (cpTi) and yttrium-partially stabilized zirconia (YPSZ).

Materials And Methods: Two three-dimensional finite element analysis models of a maxillary incisor with Re-Implant implants were made, surrounded by cortical and cancellous bone. A porcelain-fused-to-metal crown for the cpTi implant and a ceramic crown for the YPSZ implant were modeled.