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Editor-In-Chief: C. Michael Gibson, M.S., M.D. 
Synonyms and keywords: Micrognathia, mandibular hypoplasia
Micrognathism is a condition where the jaw is undersized.
Natural History, Complications, Prognosis
It is common in infants, but is usually self-corrected during growth, due to the jaws increasing in size.
It may be a cause of abnormal tooth alignment and in severe cases can cause hamper feeding.
Its causes also include , , Hallerman-Streiff syndrome, Trisomy 13, Trisomy 18, X0 syndrome (Turner syndrome), Progeria, Treacher Collins syndrome, Smith-Lemli-Opitz syndrome, Russell-Silver syndrome, Seckel syndrome, Cri du chat syndrome and Marfan syndrome.
Skull X ray
It can be detected by dental or skull X-Ray testing.