| PREVIOUS | NEXT | MAIN PAGE | HiDoctor'98 Home |

520 Disorders of tooth development and eruption

520.0 Anodontia

          Hypodontia Oligodontia

520.1 Supernumerary teeth

          Distomolar Paramolar
          Fourth molar Supplemental teeth
          Mesiodens

520.2 Abnormalities of size and form

          Concrescence of teeth Enamel pearls
          Fusion of teeth Macrodontia
          Gemination of teeth Microdontia
          Dens evaginatus Peg-shaped [conical] teeth
          Dens in dente Taurodontism
          Dens invaginatus Tuberculum paramolare
          Excludes: tuberculum Carabelli, which is regarded as a normal variation

520.3 Mottled teeth

          Dental fluorosis Nonfluoride enamel opacities
          Mottling of enamel

520.4 Disturbances of tooth formation

          Aplasia and hypoplasia of Regional odontodysplasia
           cementum Turner tooth
          Dilaceration of tooth
          Enamel hypoplasia (neonatal)
           (postnatal) (prenatal)
          Excludes: Hutchinson's teeth and mulberry molars in congenital syphilis
           (090.5)
           mottled teeth (520.3)

520.5 Hereditary disturbances in tooth structure, not elsewhere classified

          Amelogenesis imperfecta Dentinal dysplasia
          Dentinogenesis imperfecta Shell teeth
          Odontogenesis imperfecta

520.6 Disturbances in tooth eruption

          Teeth: Tooth eruption:
           embedded late
           impacted premature
           natal
           neonatal
           primary [deciduous]:
           persistent
           shedding, premature
          Excludes: exfoliation of teeth (attributable to disease of surrounding
           tissues) (525.0, 525.1)
           impacted or embedded teeth with abnormal position of such teeth
           or adjacent teeth (524.3)

520.7 Teething syndrome

520.8 Other disorders of tooth development

          Color changes during tooth formation

520.9 Unspecified

          | NEXT |