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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

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

Publication:
May 2011
Volume 42 , Issue 5

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Five-Year Clinical Follow-Up Of Prefabricated Precision Attachments: A Comparison Of Uni- And Bilateral Removable Dental Prostheses

Johannes Schmitt, DMD/Manfred Wichmann, PhD, DMD/Stephan Eitner, PhD, DMD/Jörg Hamel, DMD/Stefan Holst, PhD, DMD

Pages: 413–418
PMID: 21519561

Objectives: To evaluate the clinical long-term success of prefabricated precision attachments in retaining uni- or bilateral removable dental prostheses. Method and Materials: Twenty-three patients with uni- or bilateral shortened dental arches received removable dental prostheses attached to the residual dentition with two types of precision attachments. Results: After 5 years, 70% of bilateral and 25% of unilateral removable dental prostheses remained clinically functional. The most frequent cause of clinical failure was fracture of the abutment teeth for bilateral partial dentures and irreversible wear of the precision attachment for unilateral prostheses. Oral hygiene status significantly improved, and the mean pocket depth of the abutment teeth did not increase after 5 years. Conclusion: Removable partial denture prostheses, retained bilaterally with precision attachments, are a reliable treatment modality without negative long-term effects on periodontal health, whereas unilateral removable dental prostheses cannot be recommended because of high clinical failure rates. (Quintessence Int 2011;42:413–418)

Key words: distal free end, precision attachment, removable dental prosthesis, unilateral

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