A 3-Year Prospective Clinical Study of Telescopic Crown, Bar, and Locator Attachments for Removable Four Implant–Supported Maxillary Overdentures

Abstract

Within the limits of this prospective study, it was concluded that the locator system produced superior clinical results compared with the TC and bar attachments in terms of peri-implant hygiene parameters, the frequency of prosthodontic maintenance measures, cost, and ease of denture preparation. However, longer-term prospective studies are required to confirm these results.