Soft tissue profile changes of the midface in patients with cleft lip and palate following maxillary distraction osteogenesis: a preliminary study. 2002

Kiyoshi Harada, and Yoshiyuki Baba, and Kimie Ohyama, and Ken Omura
Branch of Oral Surgery, Department of Oral Restitution, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, Yushima, Japan. harada.osur@tmd.ac.jp

OBJECTIVE The purpose of this study was to examine preoperative to postoperative changes of soft tissue profiles in the midface of cleft patients who underwent maxillary distraction. METHODS Nine cleft patients were examined (distraction group). Lateral cephalograms were obtained preoperatively and 6 months after distraction. Changes in the positions of soft and hard tissue landmarks, the nasolabial angle, and facial height were investigated and compared with those in 9 other cleft patients who underwent conventional maxillary advancement (conventional group). RESULTS Anterior changes of the soft and hard tissue landmarks were significantly larger in the distraction group than in the conventional group. The distraction group tended to have larger increases in the nasolabial angle and subnasal length, as well as a higher anterior movement ratio for soft to hard tissue. CONCLUSIONS These results suggest that, in the midfacial profile changes of cleft patients who underwent maxillary distraction, not only is advancement of soft and hard tissue large, but also anterior movement ratio for soft to hard tissue is relatively high.

UI MeSH Term Description Entries
D008297 Male Males
D008437 Maxilla One of a pair of irregularly shaped bones that form the upper jaw. A maxillary bone provides tooth sockets for the superior teeth, forms part of the ORBIT, and contains the MAXILLARY SINUS. Maxillae,Maxillary Bone,Bone, Maxillary,Bones, Maxillary,Maxillary Bones,Maxillas
D010865 Pilot Projects Small-scale tests of methods and procedures to be used on a larger scale if the pilot study demonstrates that these methods and procedures can work. Pilot Studies,Pilot Study,Pilot Project,Project, Pilot,Projects, Pilot,Studies, Pilot,Study, Pilot
D002508 Cephalometry The measurement of the dimensions of the HEAD. Craniometry
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002971 Cleft Lip Congenital defect in the upper lip where the maxillary prominence fails to merge with the merged medial nasal prominences. It is thought to be caused by faulty migration of the mesoderm in the head region. Harelip,Cleft Lips,Harelips,Lip, Cleft,Lips, Cleft
D002972 Cleft Palate Congenital fissure of the soft and/or hard palate, due to faulty fusion. Cleft Palate, Isolated,Cleft Palates,Palate, Cleft,Palates, Cleft
D005145 Face The anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw. Faces
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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