Periodontal - the part of dentistry concerned with the structures surrounding the teeth - Bountiful, Utah
Periodontal - the part of dentistry concerned with the structures surrounding the teeth - Bountiful, Utah
Chamberlain Dental Health Services
Periodontal:

periodontics |ˌperēəˈdäntiks|
plural noun [treated as sing. ]
the branch of dentistry concerned with the structures surrounding and supporting the teeth.
What is Periodontalogy?
Periodontology, or Periodontics, is the branch of dentistry which studies supporting structures of teeth, and diseases and conditions that affect them.
The supporting tissues are known as the periodontium, which includes the gingiva (gums), alveolar bone, cementum, and the periodontal ligament. The word comes from the Greek words peri meaning around and odons meaning tooth. Literally taken, it means study of that which is "around the tooth".