Anatomical and structural reasons in the posterior region of the two jaws, and
unacceptance of the patient to do several surgical procedures in order to place many implants, or the
failure of one of the inserting implants, all these make us thinkin
g of combining implant with the natural
tooth in the same fixed prosthesis. The aim of the study is ashort observation of the incidence of the
Technical complications in fixed partial prosthesis which consist of three units and connect a natural tooth
to implant in the posterior region of the mandible, through two years of function.