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This article has been retracted as it is found to contain a substantial amount of material from the paper "A prospective study of immediately loaded single implant-retained mandibular overdentures: preliminary one-year results," Liddelow G, Henry P.J., Journal of Prosthetic Dentistry, vol. 97, no. 6, pp. S126–S137, 2007.

International Journal of Dentistry
Volume 2012 (2012), Article ID 236409, 7 pages
Clinical Study

A Prospective Study of Early Loaded Single Implant-Retained Mandibular Overdentures: Preliminary One-Year Results

1Department of Prosthetic Dentistry, Faculty of Dentistry, Tanta University, Tanta 31111, Egypt
2Department of Oral Maxillofacial Surgery, Dammam Dental Centre, Dammam Medical Complex, Dammam 31433, Saudi Arabia
3Department of Oral Medicine, Periodontology, Radiology and Diagnosis, Faculty of Dentistry, Tanta University, Tanta 31111, Egypt

Received 24 October 2011; Revised 17 December 2011; Accepted 3 January 2012

Academic Editor: Dimitris N. Tatakis

Copyright © 2012 Ali M. El-Sheikh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. To investigate the predictability of simplifying mandibular overdenture treatment using one-stage surgery and early prosthetic loading of a single implant. Materials and Methods. Twenty edentulous patients with problematic existing mandibular dentures were treated. A single implant with a chemically modified surface (SLActive, Straumann AG, Basel, Switzerland) was placed into the mandibular midline. The patients were recalled at 3, 6 and 12 months. Clinical assessments and marginal bone loss using standardized radiographs were recorded. All complications, failures and maintenance were noted. Visual analog-scale questionnaires were used to record patient satisfaction in five categories. ANOVA was used to determine differences between means of marginal bone loss and different categories of patient staisfaction ( 𝑃 = 0 . 0 5 ). Results. The 20 early loaded implants were all surviving at the 12-month recall. All implants showed less than 1 mm of marginal bone loss by the end of the 1-year with a significant increase during the follow-up period. Few prosthetic problems were reported. Patient satisfaction was high with a significant increase in all comfort and functional parameters. Conclusions. These preliminary 1-year results indicate that early loading of a single chemically modified surface implant used to retain a mucosa-borne mandibular overdenture is a safe, reliable, and cost-effective treatment.