Stereophotogrammetric impression making for polyoxymethylene, milled immediate partial fixed dental prostheses

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Abstract

Immediate post-extraction and same-day placement of interim prostheses have increased patient acceptance of implant-supported prostheses. However, for immediate prostheses supported by multiple implants, meeting passive fit and esthetic standards is often challenging. In this clinical report, implant photogrammetry was combined with conventionally obtained digitized casts to prepare an interim, milled prosthesis from a polyoxymethylene (POM) disk, using computer-aided design and computer-aided manufacturing techniques. The following 2 conclusions were drawn. First, stereophotogrammetric scanning appears to be a reliable method for making impressions of immediate, implant-supported partial prostheses, and second, POM is suitable for preparing immediate interim screw-retained prosthetic implants.

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