title: [Clinical application of decalcified dentinal matrix of human to repair alveolar cleft].
abstract: OBJECTIVE
  To study a new method of alveolar cleft bone graft repair.
  
  
  METHODS
  From April 2005 to August 2006, 26 cases (30 sides) of alveolar cleft were treated with trabecular substance of self-ilium combined with the decalcified dentinal matrix of human (DDM). There were 16 males and 10 females, aged 6-12 years. Unilateral alveolar cleft was involved in 22 cases, bilateral alveolar cleft in 4 cases. All cases were accompanied by nasal wing collapse, 5 by deciduous tooth retention, 3 by malposed teeth and 1 by tooth deformity. Anterior occlusal radiographs and panoramic oral radiographs were taken to observe union and bone absorption before and after operation.
  
  
  RESULTS
  Twenty-three patients achieved healing by first intention, oronasal fistulas were closed successfully. Infection occurred in one bilateral alveolar cleft case and bone tissue exposure in 2 cases. Wound healed by rinse or dressing change and inunction with MEBO. The X-ray films after operation showed bone bridge formation in the alveolar cleft. The stability and continuity of body of maxilla were resumed. Four cases (6-9 years old) were observed 6.5 months, 22 cases (9-12 years old) were observed 8.6 months. According to Bergland for evaluation, the X-ray films after 3 months of operation showed 16 cases (16 sides) in class I (53.3%), 7 cases (8 sides) in class II (26.7%), 2 cases (4 sides) in class III (13.3%), and 1 case (2 sides) in class IV (6.7%). The overall survival ratio of alveolar bone grafting was 93.3%, and the clinical success ratio was 80%.
  
  
  CONCLUSIONS
  The DDM is good in alveolar cleft bone graft repair. It is better than using self-ilium only clinically.
authors.affiliation: Yinchuan Stomatological Hospital, Yinchuan Ningxia, 750004, P. R. China. Zjyr@email.nx.cninfo.net
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Yongli
authors.initials: Y
authors.lastname: Huo
authors.forename: Jianhua
authors.initials: J
authors.lastname: Wang
authors.forename: Hua
authors.initials: H
authors.lastname: Li
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Xing
authors.forename: Zhigan
authors.initials: Z
authors.lastname: Sun
authors.forename: Chi
authors.initials: C
authors.lastname: Feng
authors.forename: Yinghua
authors.initials: Y
authors.lastname: Liu
mesh_terms: D000539:Alveolar Process / Q000002:abnormalities*; D000543:Alveoloplasty / Q000379:methods*; D018786:Bone Substitutes; D016025:Bone Transplantation; D002648:Child; D002971:Cleft Lip / Q000601:surgery; D002972:Cleft Palate / Q000601:surgery*; D003648:Decalcification Technique; D005260:Female; D006801:Humans; D007085:Ilium / Q000637:transplantation; D008297:Male; D010027:Osteotomy; D019651:Plastic Surgery Procedures / Q000379:methods; D012189:Retrospective Studies; D016896:Treatment Outcome
chemical_list: D018786:Bone Substitutes