Implant Impression: What about Splinted Impression Copings?
Journal Title: Modern Approaches in Dentistry and Oral Health Care - Year 2018, Vol 2, Issue 3
Abstract
Dental implants are an exciting field of dentistry that are helping clinicians restore patients to better function and more esthetic outcomes than ever before. An important factor for the success with implant-supported restoration is the passive fit between the superstructure and the abutments. Various implant impression techniques, such as pick-up, transfer techniques have been introduced, and some techniques may be more accurate than others. Clinically, some factors, including the angulation or depth of implants, may affect the accuracy of the implant impressions. This article deals with the procedure of splinted impression copings and its clinical factors affecting implant impression. The object of making an impression in implant dentistry is to accurately relate an analogue of the implant or implant abutment to the other structures in the dental arch. This is achieved by use of an impression coping which is attached to the implant or implant abutment. This impression coping is incorporated in an impression much as a metal framework is ‘picked up’ in a remount impression for fixed prosthodontics. With implant copings the coping is usually attached to the implant or abutment with screws. The impression material used is usually an elastomeric impression material; the two types most widely used and shown to be the most appropriate are polyether and polyvinyl siloxane impression materials [1]. Many articles have been written and many in vivo studies have been carried out to improve the fidelity of impressions over the use of pick up type impression copings alone [2]. Characteristics of the pickup type impression coping are that they are removed from the mouth together with the set impression. They require access to the retaining screw to allow release of the screw prior to removal of the impression coping impression assembly the analogues are attached to the impression copings while they are embedded in the impression tray. A custom tray with access to the impression coping screws is required [1].
Authors and Affiliations
Debbabi Imen, Saafi Jilani, Harzallah Belhassen, Cherif Mounir
Keywords
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- EP ID EP609329
- DOI 10.32474/MADOHC.2018.02.000140
- Views 61
- Downloads 0
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