| PERIODONTAL | • periodontal adj. Surrounding a tooth. • periodontal adj. Relating to the periodontium. • periodontal adj. Relating to periodontics. | 
| PERIODONTIA | • PERIODONTIA n. the branch of dentistry concerned with periodontal diseases. | 
| PERIODONTIC | • periodontic adj. Synonym of periodontal. • PERIODONTIC adj. relating to periodontia, the branch of dentistry concerned with periodontal diseases. | 
| PERIODONTIAS | • PERIODONTIA n. the branch of dentistry concerned with periodontal diseases. | 
| PERIODONTICS | • periodontics n. (Dentistry) The study of supporting structures of teeth—gums, alveolar bone, cementum, and the periodontal… • PERIODONTICS n. the study of gums, as a branch of dentistry. | 
| PERIODONTIST | • periodontist n. A dentist whose speciality is periodontics. • PERIODONTIST n. a dentist specialising in periodontics. | 
| PERIODONTALLY | • periodontally adv. In a periodontal way. • PERIODONTAL adv. investing or surrounding a tooth. | 
| PERIODONTISTS | • periodontists n. Plural of periodontist. • PERIODONTIST n. a dentist specialising in periodontics. | 
| PERIODONTITIS | • periodontitis n. (Periodontology) A serious form or stage of periodontal disease which may lead to loss of bone and falling… • PERIODONTITIS n. inflammation of the tissues surrounding the teeth. | 
| PERIODONTOLOGY | • periodontology n. (Dentistry) Periodontics. • PERIODONTOLOGY n. the branch of dentistry concerned with periodontal diseases. | 
| PERIODONTICALLY | • PERIODONTIC adv. relating to periodontia, the branch of dentistry concerned with periodontal diseases. | 
| PERIODONTITIDES | • periodontitides n. Plural of periodontitis. | 
| PERIODONTITISES | • PERIODONTITIS n. inflammation of the tissues surrounding the teeth. |