Bouhy, Alice;
Lamy, Marc;
Altaep, Yaman;
Lambert, France
Maxillary implant overdenture retained by four unsplinted attachments and opposed by a natural or fixed dentition: Five‐year clinical outcomes. A prospective case series
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Media type:
E-Article
Title:
Maxillary implant overdenture retained by four unsplinted attachments and opposed by a natural or fixed dentition: Five‐year clinical outcomes. A prospective case series
Contributor:
Bouhy, Alice;
Lamy, Marc;
Altaep, Yaman;
Lambert, France
Description:
<jats:title>Abstract</jats:title><jats:sec><jats:title>Objectives</jats:title><jats:p>The objective of this study was to assess, over a period of 5 years, implant prosthesis and patient‐reported outcomes of complete dentures retained by four implant‐supported attachments in the edentulous maxilla facing either natural teeth or fixed rehabilitation in the lower jaw.</jats:p></jats:sec><jats:sec><jats:title>Materials and Methods</jats:title><jats:p>Implant, prosthodontic and patient‐related outcomes were assessed in 30 patients at 1, 3 and 5 years. Prosthodontic survival, complications or maintenance events as well as implant survival were recorded. Patient‐reported outcome measures (PROMs) were evaluated with the Oral Health Impact Profile (OHIP‐20) questionnaire and a visual analogue scale (VAS) before implant placement (baseline) and during the follow‐up period.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>After 5 years, three patients dropped out, 21 implants failed, and four overdentures were replaced leading to a prosthesis survival rate of 85.2% (95% CI: 71.8%–98.6%) and an implant survival rate of 80.6% (95% CI: 73.1%–88.0%). Prosthodontic success rate decreased from 86.2% to 74% between the 1st and the 3rd year and reached 63% after 5 years. OHIP results improved significantly from baseline to 1 year (<jats:italic>p <</jats:italic> .0001) and to 3 years (<jats:italic>p =</jats:italic> .036), but, at 5 years, the improvement was no longer significant when compared to baseline (<jats:italic>p =</jats:italic> .12). The overall VAS score remained significantly higher up to 5 years (<jats:italic>p <</jats:italic> .001).</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>A substantial number of prosthetic complications and replacements occurred over the 5‐year follow‐up. After 5 years, the OHIP‐20 deteriorated and reached again the baseline level. Nonetheless, the VAS results suggest significantly increased patient satisfaction after implant‐supported retention was provided for the removable prostheses.</jats:p></jats:sec>