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Patient satisfaction and clinical outcomes in implant-supported overdentures retained by milled bars: Two-year follow-up

Journal article
Authors M. Toia
Ann Wennerberg
P. Torrisi
V. Farina
E. Corra
D. Cecchinato
Published in J Oral Rehabil
Volume 46
Issue 7
Pages 624-633
ISSN 0305-182X
Publication year 2019
Published at Institute of Odontology
Pages 624-633
Language en
Keywords CAD-CAM, edentulous arch, implant, OHIP-14, overdenture, quality of life, quality-of-life, residual ridge resorption, oral-health, mandibular, overdentures, edentulous patients, maxillary overdentures, conventional, dentures, tooth loss, impact, therapy, Dentistry, Oral Surgery & Medicine
Subject categories Dentistry


Objectives This observational clinical study evaluated the patient satisfaction and the clinical outcomes of edentulous arches rehabilitated with overdentures retained by CAD-CAM milled titanium bars. Materials and Methods Edentulous patients were treated with a full-arch removable overdenture anchored on two milled bars based on a friction retention system. Patient satisfaction was tested using the validated Oral Health Impact Profile (OHIP-14) questionnaire at the pre- and post-treatment visits, up to two years after prosthesis delivery (possible score range: 0-56. Best: 0). The prosthodontist satisfaction was also assessed through a designed questionnaire (best possible range 0-4. Best:0). Radiographic and clinical examinations were performed at baseline and after 2 years of function. Implant and prostheses complications were recorded. Results Forty (25 mandible) edentulous patients, mean age 69 +/- 9.5 (SD) (52% males, 10% smokers), were treated with a total of 185 implants. The mean difference between pre- and post-treatment OHIP-14 score was 20.6 +/- 8.0 (P < 0.0001) showing a high level of satisfaction for aesthetics, functional and psychological outcomes. This perception was not influenced by patient's age or gender. The clinicians' mean score was 3.4 +/- 4.0. There was a marginal bone level (MBL) gain of 0.02 +/- 0.22 mm between the two time points. Minor complications were reported in five patients. Conclusions This procedure may lead to satisfaction regarding aesthetics and mastication function. One of the most relevant aspects is the versatility, which allows selection of the most suitable treatment option according to patient needs. The prosthodontist satisfaction questionnaire showed that this procedure met the clinical expectations.

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