title: Changes in grafted autogenous bone during edgewise treatment in patients with unilateral cleft lip/palate or alveolus.
abstract: Objective : To examine the changes in autogenous bone from 6 to 12 months after alveolar bone grafting (ABG) (T1) through completion of edgewise treatment (T2). Design : Retrospective longitudinal study. Setting : Multidisciplinary long-term follow-up at Kagoshima University Hospital. Patients : Forty-three patients with unilateral cleft lip and palate or alveolus. Main Outcome Measures : At T1 and T2, the bone bridge and quantity of grafted bone were evaluated using the Chelsea scale and the ABG scale. The cleft-adjacent tooth angles before ABG and at T2, as well as the number of orthodontic space closures, were examined. Patients were classified as having either adequate (type A or C; adequate group) or poor bone bridges (type B, D, E, or F; poor group) by the assessment at T1. Results : At T1, the ABG scores for the cleft-adjacent central incisor side of patients in the adequate group were higher than those of patients in the poor group (P < .001). At T2, the adequate group had higher ABG scores for the cleft-adjacent central incisor side (P = .022) and the canine sides (P = .034). No significant differences in tooth angles or the number of orthodontic space closures were noted between the groups. Conclusions : These results suggest that the quantity of grafted bone in the cleft-adjacent central incisor at 6 to 12 months post-ABG may be an indicator of the quantity of grafted bone that will be present after edgewise treatment.
authors.forename: Aya
authors.initials: A
authors.lastname: Maeda
authors.forename: Sawako
authors.initials: S
authors.lastname: Uehara
authors.forename: Mayu
authors.initials: M
authors.lastname: Suga
authors.forename: Kazuhide
authors.initials: K
authors.lastname: Nishihara
authors.forename: Norifumi
authors.initials: N
authors.lastname: Nakamura
authors.forename: Shouichi
authors.initials: S
authors.lastname: Miyawaki
mesh_terms: D064728:Alveolar Bone Grafting; D000539:Alveolar Process / Q000002:abnormalities / Q000000981:diagnostic imaging / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D002971:Cleft Lip / Q000000981:diagnostic imaging / Q000601:surgery*; D002972:Cleft Palate / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D007180:Incisor; D008137:Longitudinal Studies; D008297:Male; D008445:Maxillofacial Development; D011862:Radiography, Panoramic; D012189:Retrospective Studies; D016896:Treatment Outcome
keywords: ABG scale; Chelsea scale; UCLP/A; alveolar bone graft; edgewise treatment