Ectodermal Dysplasia — NDEB AFK MCQ
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Correct answer: D — Hypodontia (congenital absence of multiple teeth) with conical-shaped teeth
Hypohidrotic (X-linked) ectodermal dysplasia is characterised by the classic triad of hypodontia (oligodontia with conical/peg-shaped teeth), hypotrichosis (sparse/fine hair), and hypohidrosis (reduced sweating due to absent/reduced sweat glands). Dental features include congenitally absent teeth (often severe with <6 teeth present), small conical-crowned teeth, and underdeveloped alveolar ridges. Dental rehabilitation with overdentures, fixed prostheses, or implants (after growth completion) is essential for function and psychosocial development.
Reference: Neville – Oral and Maxillofacial Pathology, 4th ed., 2016