Describes the prevalence and possible aetiological factors of hypodontia. Highlights the role of genetic factors in tooth development and agenesis. Emphasises the importance of multidisciplinary ...
Hypodontia and nail dysgenesis (HND), also known as Witkop tooth and nail syndrome or TNS, is a form of ectodermal dysplasia, which affects the ectoderm, the outer layer of the developing fetus.