الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
To compare between Locator and Equator attachments used with short implants to retain mandibular complete overdentures, regarding the peri-implant marginal bone height changes. Ten healthy complete edentulous patients were selected and constructed conventional complete denture for each patient. Then mandibular denture was duplicated by clear acrylic resin to be used as radiographic stent. Each patient received two short implants in the canine areas by flapless technique using cone beam computer tomography surgical template. Then, divided into two equal groups ; group A received locator attachments and group B received equator attachments. After one month direct picking up were made. Standardized periapical radiography evaluations of periimplant bone height changes were performed immediately, 3 months, 6 months, and 12 months following picking up of attachments. The bone loss was calculated during each interval and statistically analyzed. When comparing vertical bone loss between groups at different observation, there was significant difference between groups except at T0-T3 (p=1.00) and was no significant difference in horizontal bone loss between groups at T3-T6 and T6-T12. Conclusions: Within the limitations in this study, it can be concluded that the low-profile Locator and OT-Equator attachments can be used for retaining mandibular implant overdentures, regarding the accepted range of periimplant marginal bone height changes. The using of Locator attachment may be more beneficial in preserving the periimplant marginal bone than OT-Equator for retaining the mandibular implant overdenture.