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Volume 21 , Issue 2
March/April 2006

Pages 320324

A Prosthodontic Technique to Improve the Simplicity and the Efficacy of Angled Abutments for Divergent Implant Situations: A Technical Note

Michael Pampel, Dr Med Dent / Ralf Wolf, MDT / Stefan Dietrich, ICID

PMID: 16634505

Esthetic demands and nonparallel situations between the axial direction of the suprastructure and the implant require angulation of the abutment. The Conical Seal design avoids microleakage and micromovements after the abutment has been seated and finally retained via screw. However, there is no protection against rotation during the fixation procedure. Therefore, a control device and/or method for a reproduction of correct seating during each treatment step of permanent prosthesis fabrication is desirable. The purpose of this investigation was to develop a device to ensure the correct seating by less expensive, safer, easier, and more precise methods. The sequence of components and the standard procedure required modification: in the modified procedure, the impression is made at the implant level, and the straight implant replica is embedded in the laboratory cast. The angled abutment needs modification by grinding to create small margins in the mesial, distal, and palatal walls. Three materials that are used in daily dental practice are combined to fabricate an individual transfer device. Direct waxup of the restoration onto the angled abutment without a prefabricated component shortens the laboratory processing. The modified sequence and procedure, small alterations of the angled abutment, and an individual transfer device can simplify the transfer procedures, improve clinical performance and applicability, and shorten chair time. (Technical Note)

Int J Oral Maxillofac Implants 2006;21:320324
Key words: angled abutment modification, individual transfer devices, prosthetic procedures

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