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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

ISSN 0033-6572 (print) • ISSN 1936-7163 (online)

Publication:
May 2006
Volume 37 , Issue 5

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The pier abutment: A review of the literature and a suggested mathematical model

Igal Savion, DMD / Chris L. Saucier, PE / Stefan Rues, Dipl Ing / Avishai Sadan, DMD / Markus Blatz, Dr Med Dent

Pages: 345352
PMID: 16683681

Many clinicians consider the prosthetic restoration of missing posterior teeth by means of a 5-unit fixed partial denture with a pier abutment a non-favorable situation. The present article assesses the validity of the pier abutment by means of a critical review of the literature and mathematical analysis of the forces generated within a fixed partial denture of this design. Few studies are available, and none substantiate the theory that the pier abutment serves as a fulcrum. A mathematical model suggests that debonding may occur in the anterior abutment, but not due to the teetering of the fixed partial denture around the pier abutment. (Quintessence Int 2006; 37:345352)

Key words: fixed partial denture, fulcrum, non-rigid connectors, pier abutment

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