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Orthognathic surgery has become useful procedures for patients with cleft lip and palate (CLP) to improve the inharmonious relationship between the maxilla and mandible. The purpose of this study is to assess the postoperative stability and skeletal morphology following orthognathic surgeries for patients with skeletal class III deformity with CLP. This study retrospectively evaluated the long-term stability of orthognathic surgery and the final profile of skeletal morphology in 30 patients using lateral cephalometric imaging. Sagittal split ramus osteotomy was performed for 10 patients (CLP-S), Le Fort I osteotomy was performed for 5 patients (CLP-L) and two-jaw surgery was performed for 15 patients (CLP-T). As a control, we included 5 patients treated by two-jaw surgery, 7 patients treated by SSRO without CLP and 20 CLP patients with orthodontic treatment alone. In the CLP group at 2 years postoperatively, the mean relapse in SNA was 19.8% (CLP-T) and 18.1% (CLP-L), and the mean relapse in SNB was 17.6% (CLP-S) and 26.9% (CLP-T). No significant differences were observed in the relapse ratio of the same operation between with and without CLP. In comparison of surgical and non-operative patients with CLP, there were significant differences in preoperative skeletal factors, but the profiles were similar at the end of treatment. Our orthognathic surgeries provided the same level of stability for patients with skeletal class III deformity with or without CLP, creating harmonious intermaxillary relationship. [ABSTRACT FROM AUTHOR]

Abstract Objective To compare the short-term effects of presurgical nasoalveolar molding (PNAM) and Hotz's plate treatment on maxillary arch form in patients with unilateral cleft lip and palate (UCLP). Materials and Methods This retrospective study included patients with non-syndromic UCLP who received orthopedic treatment with PNAM (the PNAM group; n = 27) or Hotz's plate (the Hotz's group; n = 29) before lip repair. Maxillary dental casts obtained at first visit and at the time of lip repair were scanned, and the two groups were compared for maxillary form by superimposition of palatal rugae. Results By the time of lip repair, the PNAM group exhibited significantly greater posterior movements of the incisal and cleft-edge points of the major segment than did the Hotz's group; additionally, the incisal point had moved laterally to the cleft side. Moreover, the PNAM group exhibited significant smaller alveolar cleft width and alveolar arch length than the Hotz's group at the time of lip repair. Conclusion Since PNAM induces rotation of the major segment to the cleft side, it could contribute to the formation of a more symmetrical maxillary arch. However, it might also decrease alveolar arch length before lip repair. [ABSTRACT FROM AUTHOR]