ICD-11 definition : Tooth ankylosis is the solid fixation of a tooth, resulting from fusion of the cementum
and alveolar bone, with obliteration of the periodontal ligament. It is uncommon in
deciduous dentition, and very rare in permanent teeth.;
ICD-11 synonym : ankylosis of tooth; Dental ankylosis; Absence of exfoliation of teeth;
ICD-11 inclusion : failure of exfoliation of primary tooth; Absence of exfoliation of teeth;
Tooth ankylosis is the solid fixation of a tooth, resulting from fusion of the cementum
and alveolar bone, with obliteration of the periodontal ligament. It is uncommon in
deciduous dentition, and very rare in permanent teeth.