Accuracy of implant impression techniques.

Three impression techniques were assessed for accuracy in a laboratory cast that simulated clinical practice. The first technique used autopolymerizing acrylic resin to splint the transfer copings. The second involved splinting of the transfer copings directly to an acrylic resin custom tray.

Analysis of load transfer and stress distribution by an implant-supported fixed partial denture.

This study simultaneously examined the load transfer and stress distribution by an implant-supported fixed partial denture. A mandibular implant framework with implants connected to the abutments was embedded in a three-dimensional photoelastic model of a mandible. Strain gauges were attached on the superior surface of the framework, and a vertical load of 7.

Implant-retained mandibular overdentures: a simplified, cost-effective treatment approach.

The use of implant-retained complete overdentures is a viable treatment modality in compromised patients. Use of two separate implants in the mandible enhances the retention and stability of the denture, which is still mainly supported by soft tissues. A technique for clinical fixation of the internal attachment to a laboratory-rebased and tissue-loaded mandibular overdenture is described.

A modified impression technique for implant-supported restoration.

An impression technique is proposed for construction of implant-borne restorations that uses a modified autopolymerizing resin custom tray to allow splinting of the impression copings directly to the tray. This method eliminates the use of the dental floss-autopolymerizing resin complex, thus decreasing resin distortion and simplifying the clinical procedures.

Restoring teeth following crown lengthening procedures.

Crown lengthening procedures are often necessary to successfully restore teeth that have been mutilated at or below the level of the bone crest. Forced eruption is preferred to surgical removal of supporting alveolar bone, since forced eruption preserves the biologic width, maintains esthetics, and at the same time exposes sound tooth structure for the placement of restorative margins. To properly construct a crown, the minimal distance from the alveolar crest to the coronal extent of sound tooth structure should be 4 mm.