Journal
JOURNAL OF DENTAL RESEARCH
Volume 86, Issue 3, Pages 276-280Publisher
INT AMER ASSOC DENTAL RESEARCHI A D R/A A D R
DOI: 10.1177/154405910708600315
Keywords
randomized controlled clinical trial; edentulism; cost-analysis; aftercare; implant-retained overdentures
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Mandibular implant overdentures increase satisfaction and the quality of life of edentulous individuals. Long-term aftercare and costs may depend on the type of overdentures. One hundred and ten individuals received one of 3 types of implant-retained overdentures, randomly assigned, and were evaluated with respect to aftercare and costs. The follow-up time was 8 years, with only seven drop-outs. No significant differences (Kruskal-Wallis test) were observed for direct costs of aftercare (p = 0.94). The initial costs constituted 75% of the total costs and were significantly higher in the group with a bar on 4 implants, compared with the group with a bar on 2 implants and the group with ball attachments on 2 implants (p = 0.018). The last group needed a significantly higher number of prosthodontistpatient aftercare contacts, mostly for re-adjustment of the retentive system. It can be concluded that an overdenture with a bar on 2 implants might be the most efficient in the long term.
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