The American Academy of Periodontology (AAP) Board of Trustees created a Task Force in 2014 to develop a clinical interpretation of the 1999 Classification of Periodontal Diseases and Conditions. (1, 2) This was done to “address concerns expressed by the education community, the American Board of Periodontology, and the practicing community that the current Classification presents challenges for the education of dental students and implementation in clinical practice.” (3) An update to the 1999 Classification will begin in 2017. The July 2015 update focused on three explicit areas of the current classification: (1) attachment level, (2) chronic versus aggressive periodontitis, and (3) localized versus generalized periodontitis. (3)
Clinical attachment level
The Task Force concedes that it is sometimes difficult in clinical practice to accurately measure clinical attachment level (CAL). They suggest that a diagnosis of periodontitis should be established by using a variety of clinical and radiographic factors. These factors may include one or more sites of inﬂammation, or bleeding on probing (BOP); radiographic bone loss; and deep probing depths or clinical attachment loss. The table below was excerpted from the new guidelines. (3) Patient with gingival recession, no inflammation, no significant probing depths, but attachment loss, would be considered healthy. (3) This usually occurs post-periodontal treatment.
Finish the story at the Source: Update from the American Academy of Periodontology