الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
In the obstacles of this invitro have a look at and based totally on its result, it was concluded that: -
1. The attachment device notably influences the vertical retention of implant-retained mandibular overdenture.
2. The equator with bar machine had a significantly better retention cost as compared to the solitary equator or bar attachments.
Three. Using OT Equator attachment gadget may be nice in growing the retention of overdentures.
Four. The usage of equator attachment system with mandibular overdenture produce better strain distribution
Five. The equator with bar attachment might also offer an ok attachment device with respect to decreasing the pressure on the implant frame and helping structures when as compared with the solitary equator attachments.
6. Whilst the bar loss friction retention by time we will boom retention by way of adding OT Equator over the bar to increase retention.