ICD-11 definition : Periodontal disease can refer to any pathological process involving the gum (GINGIVA),
the alveolar bone (alveolar process), the dental cementum, and / or the periodontal
ligament;
Periodontal disease can refer to any pathological process involving the gum (GINGIVA),
the alveolar bone (alveolar process), the dental cementum, and / or the periodontal
ligament