The aim of this article is to present a precise periodontal terminology that orthodontists can use to clarify communication between orthodontists treatment and their patients. What’s mean periodontal issues that arise in adult orthodontic treatment, what the purpose of the discussion? In general terms we refer, of course, to mechano-therapy for adults and to the periodontal diseases that arise with this class of patients and to the treatment that is available for these maladies. Orthodontists who treat adult patients and record procedures in careful way need to rely upon a precise periodontal vocabulary so that, as group leaders, they can communicate effectively with other members of the inter-disciplinary treatment team as well as with patients. In the management of this effort, orthodontists are responsible for referring patients to periodontists when it’s necessary and for keeping the lines of communication open between patients, and periodontists.