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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

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

Publication:
June 1993
Volume 24 , Issue 6

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A clinical study of an intracoronal fixed partial denture attachment system

Naert/Bevers/Nijs

Pages: 397-403
PMID: 8234645

An alternative tooth replacement system, based on pin retention, was clinically evaluated for up to 4 years in a prospective study. Thirty-two Universal Dental Anchorage anchors, supporting 28 fixed partial prostheses in 25 patients, were placed. Most of these prostheses had a cast complete crown on one abutment; on the other abutment, the UDA anchor functioned as a support for the extension pontic. After a mean observation period of 2 years, nine anchors failed. Around five of the failed anchors, caries was present; this occurred after 2 years or more of function of the prostheses. Early failures (4/9) were registered in the first year of function and were caused by loss of retention (three) or anchor fracture (one). The peridoontal condition of the UDS anchor abutment teeth was not significantly different from that of the contralateral side. The number of failures, espcially the number caused by recurrent caries, is cause for concern.

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