Implant overdenture withAttachment were used to improve the stability and
function of the prostheses and increases patient satisfaction.A passive fit between the
metal framework and the bar attachment is required for successful restoration.
Framework-bar misfit is a common problem observed in overdentures, which might
result in prosthetic and biological complications.In the present article was reviewed the
literature concerning on the causes, complication and overcome of misfit.
Key word: implantoverdenture, bar attachment, misfit