Zygogiannis K, et al. - This study was carried out to assess the stability and the magnitude of the impact of converting the conventional mandibular dentures of the patients into the implant overdentures (IODs) on their satisfaction and oral health–related quality of life (OHRQoL). An equal magnitude of improvement could be offered by mandibular overdentures retained by immediately loaded mini dental implants (MDIs) with that achieved by overdentures retained by standard-sized implants, with regard to the patient-based outcomes.