Retention of Ti Si snap versus locator attachments with retention sil in two-implant retained mandibular overdentures: an in vitro study.

Background: Primary retention and progressive loss of retention of various attachment systems are critical elements in appropriate attachment selection; nevertheless, research on attachment retention reveals a broad spectrum of retention values for the same attachment system and between various systems. Accordingly, the aim of this study was to compare the retention of two different types of attachments (Ti Si snaps and locators) in two-implant-retained mandibular overdentures.

Methods: A completely edentulous mandibular educational cast was scanned.