The data for the accuracy of an HIP plane of occlusion was originally studied and published by Dr. Harry Cooperman from Pennsylvania in the early 1960’s. He studied over 10,000 skulls and concluded the HIP plane of occlusion was 85-90% correct with each unique skull. Dr. James Carlson later published in several publications the utilization of HIP mounting and its accuracy with his treatment protocols. Below is an additional study by Dr. Dipak Thapa from the Department of Prosthodontics Kantpur Dental College in Kathmandu, Nepal supporting the accuracy of HIP mountings in prosthodontic protocols. After processing 100’s of Full Mouth Rehabilitations at Ocean Ceramics from several doctors in North America, the HIP impression and mounting protocol has been consistent with Dr. Cooperman’s research.
When we process cases in a commercial lab setting, we receive several different records for several different articulation systems. The Acculiner® and Panadent® articulators are very popular in the Pacific Northwest and Western Canada area. In the following illustration, there is a comparative analysis of the 2 articulators aligning the average values of the ear and to the incisal edge of the incisors on the Z axis horizontal mounting plane.
Utilizing the HIP mounting landmarks on either articulator has proven to be consistent with doctors preference.
Read the full article here.