Background: Mandibular implant overdenture retained by two implants was considered the minimum requirement for treatment of mandibular edentulous jaw. However, the financial cost of this treatment is relatively high that could not offered by many patients, especially in developing countries. Aim: This study was made to ascertain if the mandibular overdenture retained by one implant at satisfaction and biting force parameters. Methodology: A total of 56 edentulous patients have met the selection criteria. After randomized sampling system, one or two implants were inserted in the mandible following delayed surgical protocol, and locator attachments were screwed to implants at the second stage of surgery. The patient's satisfaction was rated and the biting force was measured at baseline (before implant) and at 3, 6, and 12 months after implant loading. Patient satisfaction was evaluated using 100 mm visual analog scale, whereas the biting force was measured by load star sensor device.
Results:The study sample comprised of 56 patients (32 male AND 24 female), with a mean age of 58.2 years. All patients attended the 12-month follow-up without dropout. The two-implant group present a significant improvement in both patient satisfaction and biting force throughout the follow-up period in comparison with single implant group. Conclusion: The two implants mandibular overdenture still the minimum standard treatment modality for completely edentulous cases rather than single implants mandibular overdenture.. Clinical Significance: The mandibular overdenture retained by single implant at the midline can provide a beneficial treatment outcome over 1 year observation period, especially for low-income patients.