A dental prosthesis apparatus with reference points for overlapping of multiple images to form a composite image, in which a pair of implant assemblies each attaches to a clip assembly having first and second opposing rail clips secured together with a fastener while holding a portion of an elongated rail that extends between the implant assemblies, and the rail defines a differentiation characteristic for use as reference points for matching of a plurality of images in overlapping relation for forming a composite image. A method of providing a dental prosthesis with reference points for imaging is disclosed.
