An internal sinus manipulation procedure for augmenting bone of a dental patient between the floor of the patient's sinus and a raised portion of the patient's sinus membrane comprising exposing a portion of the patient's sinus membrane immediately adjacent the floor of the patient's sinus followed by (i) a simultaneous and controlled lifting and lateral separation of the exposed portion of the sinus membrane from the sinus floor to form an open pocket between the sinus membrane and the sinus floor, (ii) introduction of a bone grafting material into the pocket and (iii) a compacting of the bone grafting material.