본원에 내원한 선천성 구순구개열 환자에 대한 역학적 연구

EPIDEMIOLOGIC STUDY ON PATIENTS WITH CONGENITAL CLEFT LIP AND PALATE

Clefts of lip and palate are most common congenital deformity to affect the orofacial region. Cleft lip and palate can be classified into the cleft of primary palate involving lip, alveolus, and premaxilla and the cleft of secondary palate involving hard palate and soft palate. Causative machanism of cleft lip and palate is not completely understood, however genetic and environmental factor are considered. Lots of epidemiologic surveys and family studies have been extensively done about incidence, racial influence, sex ratio. parent age and genetic factor in these deformities. These researches are Useful to dissolve many problems in prevention and treatment of cleft lip and palate. We performed epidemiologic survey of cleft lip and/or palate who visited the department of Oral & Maxillofacial surgery, Guro Hospital of Korea University from 1995 to 1998