Causes, Incidence and Risk Factors Cleidocranial dysostosis is inherited as an autosomal dominant characteristic. It is equally common in males and females. A heavy protruding brow, protruding jaw, wide nasal bridge, and abnormal malaligned teeth characterize the disorder. The incomplete development or absence of the collar bones allows the shoulders to be brought together in front of the body. Other bony abnormalities exist.
Intelligence is normal.
There is often a family history of cleidocranial dysostosis. There is no specific treatment for the bony abnormalities. An oral surgeon should monitor teeth regularly, with particular attention to both decay and cosmetic appearance. The bony abnormalities cause little problem. Appropriate dental care is vital.