Applications and Fabrication of Chair-Side Provisional Restorations Utilizing Acrylic Shells and Alginate Impressions
Author(s): Stuart J. Froum, DDS
Target Audience: Dental Assistants, Dental Hygienists, Dentists
Provisional restoration fabrication is a critical part of successful implant treatment. Several types of direct and indirect provisional restorations are currently used, each with advantages and disadvantages. Fixed provisional restorations are preferred by many clinicians and patients, as they eliminate transmucosal loading and are not removable.
Educational Objectives
The overall goal of this article is to provide the reader with information, based on a case series, evaluating the results and describing the step-by-step procedures involved in the acrylic shell and alginate impression (ASAI) technique, as well as the indications, contraindications, advantages and limitations of this technique.
On completing this article, the reader will be able to do the following:
1. Define the options available for the fabrication of provisional restorations for implants
2. Delineate and describe the steps required for fabrication of an implant-supported provisional restoration using the ASAI technique
3. List the prosthetic-related complications that clinicians might face
4. Review the advantages and disadvantages of direct and indirect implant-supported provisional restorations
Abstract
Provisional restoration fabrication is a critical part of successful implant treatment. Several types of direct and indirect provisional restorations are currently used, each with advantages and disadvantages. Fixed provisional restorations are preferred by many clinicians and patients, as they eliminate transmucosal loading and are not removable. The acrylic shell and alginate impression (ASAI) technique involves a series of sequential steps for the indirect fabrication of provisional restorations. It offers a simple-to-use technique that results in reliable and esthetic provisional restorations for implants until the time the definitive restoration will be placed.
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