System and method for planning and designing a dental implant using a digital three dimensional model of at least one tooth or tooth socket； identify tooth axes, tooth lines, tooth orientation, tooth roots, tooth roots' end, indentation between roots, cervical line and reference points； display identified lines and points to a user； allow a user to tweak and adjust identified lines and points； identify and calculate areas to be thickened, reduced or roughened according to a predefined logic； adjust said model according to said identified areas； display said adjusted model to a user via a user interface； allow a user to tweak and readjust said adjusted model； save said readjusted model； wherein said model is not an exact copy of the patient's tooth.
