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Volume 16 , Issue 2
March/April 2001

Pages 259–266


Maxillary Overdentures Retained by Splinted and Unsplinted Implants: A Retrospective Study

Timo O. Närhi, DDS, PhD, Miluska Hevinga, DDS, Ralph A. C. A. Voorsmit, DDS, PhD, Warner Kalk, DDS, PhD


PMID: 11324214

The purpose of this retrospective study was to evaluate the clinical performance of and patients satisfaction with maxillary overdentures retained by splinted and unsplinted implants. Patients who had been treated with maxillary implant-retained overdentures because of functional problems with conventional complete dentures were identified and invited to participate in the study. A total of 16 patients fulfilled the enrollment criteria and agreed to participate. Eleven patients were treated with bar-retained overdentures with 3 to 6 clips (mean follow-up 32 months), and 5 patients wore overdentures retained by 2 to 6 ball attachments (mean follow-up 54 months). All subjects were satisfied with their prostheses, and most subjects experienced improvement in their oral function after treatment with implant-retained overdentures. At the time of clinical examination, 92% (n = 77) of the 84 implants placed were functioning satisfactorily. The cumulative survival rate for the implants after 72 months was 90%. Loss of bone support correlated with peri-implant probing depth (r = 0.29; P < .02). No differences in mean bone loss between the subjects with ball-retained or bar-retained overdentures were found. The presence of plaque or peri-implant bleeding was not associated with the type of attachment. (INT J ORAL MAXILLOFAC IMPLANTS 2001;16:259–266)


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