Posterior Dental Intrusion: New Category of Collapsed Bites by Gus J Livaditis DDS

Posterior Dental Intrusion (PDI) is described as another category of collapsed bites. Patient-induced PDI has not been acknowledged to occur. Dr Livaditis reveals six essential clinical features and three supporting features to establish the diagnosis and etiology of PDI. The cause is attributed to severe and long-term clenching resulting in (a) a deep bite with or without anterior wear, (b) adult altered passive eruption limited to posterior teeth, (c) excessive CSS and IRS, (d) reduced OVD, (e) distortion of the cervical plane, and other features. PDI challenges the concept of "compensatory eruption" of occluding worn anterior teeth as the OVD is described unchanged.