Dr. DiBenedetto makes a good point that the relationship of occlusion to periodontitis is dependent on the definition of the disease. The Academy of Periodontology defines periodontitis as "inflammation of the supporting tissues of the teeth; usually a progressively destructive change leading to loss of bone and periodontal ligament."1
While periodontitis is not the only possible cause of bone loss around teeth, our discussion within these articles strictly concerned the relationship between occlusion and inflammatory disease. Similarly, while the term "occlusal trauma" may mean different things depending on ones perspective, for periodontal purposes, it refers to the injury to the periodontal attachment apparatus as the result of occlusal forces.
We are not aware of any study that has identified differences in buccal recession based on occlusal scheme or occlusal classification; however, Harrel and Nunn2 did not find an association between occlusal discrepancies and gingival recession in their 2004 report of patients in a private practice setting.
We thank Dr. DiBenedetto for his interest in this topic.