Dental TechniqueFabrication of additively manufactured custom impression copings based on stock abutments
Section snippets
Technique
- 1.
Attach an unprepared engaging implant abutment from the implant system (One Q narrow; Dentis) to an implant analog and scan by using a desktop scanner (Map 400; Amann Girrbach AG).
- 2.
Start a digital workflow to design the impression coping by using a dental computer-aided design software program (Ceramill Mind; Amann Girrbach AG). Select the reconstruction type as the offset coping.
- 3.
Set the minimal thickness of the coping to 1 mm.
- 4.
Add parametric attachments to the coping to make 4 rectangular
Discussion
In implant prosthodontics, precisely fabricated components are crucial to the fabrication of accurately fitting implant-supported restorations.10 Impression copings in the presented technique were cemented to stock abutments providing accurate fit to the mating surfaces and, therefore, accurate spatial positioning of the implant analogs in the working cast. Additive manufacturing was used in the fabrication of impression copings to duplicate the undercut areas that are difficult to manufacture
Summary
This article describes a straightforward method of fabricating a custom impression coping with additive manufacturing technology. The impression copings in this technique were cemented to stock abutments to allow for an indirect implant impression in the absence of the manufacturer’s stock impression copings.
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