164001 Rare odontal or periodontal disorder
377794 group of disorders
420755 Rare genetic odontal or periodontal disorder
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167759 Hereditary dentin defect
definition
The hereditary dentin disorders, dentinogenesis imperfecta (DGI) and dentin dysplasia (DD), comprise a group of conditions characterized by abnormal dentin structure affecting either the primary or both the primary and secondary dentitions.