periodontoclasia Dentistry.
(ˌpɛrɪədɒntəʊˈklæsɪə)
[f. as periodontia + Gr. κλάσ-ις breaking (f. κλάειν to break) + -ia1.]
Destruction or degeneration of periodontal tissue.
| 1914 [see periodontia]. 1960 S. Sorrin Pract. of Periodontia iv. 128/2 Pulpal disease may invade the periodontal space, producing inflammation and periodontoclasia. |