title: Short-term molding effects on the upper alveolar arch following unilateral cleft lip repair with/without nasal vestibular expansion.
abstract: Objective : To elucidate the various effects on maxillary growth following different procedures for vestibular expansion at the time of primary lip repair for unilateral cleft lip and palate (UCLP). Participants : Thirty patients with complete UCLP who underwent primary lip repair using a triangular-flap technique with nasal vestibular expansion (NVE; the NVE group) and 30 patients who underwent the same lip repair with closure of the nasal floor (non-NVE group) were enrolled in this study. Interventions : Serial dental casts on lip and palatal repair were scanned with a laser scanner. The three-dimensional coordinates of seven anatomical landmarks and their growth changes, the curvature radius rate between major/minor segments, and the collapse rates were compared between the two groups. Results : At the time of lip repair, the incisal point was located slightly anteriorly in the non-NVE group. At the time of palatal repair, the cleft edge of the alveolar process in the minor segment was located significantly anteriorly and laterally in the NVE group, showing the significantly forward change of the minor segment. The minor segment collapsed in the non-NVE group. The collapse rate of the NVE group (3.3%) was significantly lower than that of the non-NVE group (40.0%). Conclusions : NVE following simultaneous advancement of nasolabial components on the affected side at the time of primary lip repair for UCLP facilitates the forward molding of the maxilla, resulting in a more symmetrical alveolar arch form.
authors.forename: Takao
authors.initials: T
authors.lastname: Fuchigami
authors.forename: Norifumi
authors.initials: N
authors.lastname: Nakamura
authors.forename: Kazuhide
authors.initials: K
authors.lastname: Nishihara
authors.forename: Kazuhide
authors.initials: K
authors.lastname: Matsunaga
authors.forename: Hiroko
authors.initials: H
authors.lastname: Hasegawa
mesh_terms: D059925:Anatomic Landmarks; D002971:Cleft Lip / Q000000981:diagnostic imaging / Q000601:surgery*; D002972:Cleft Palate / Q000000981:diagnostic imaging / Q000601:surgery*; D017267:Dental Prosthesis Design; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D007223:Infant; D008297:Male; D008445:Maxillofacial Development; D003765:Models, Dental; D009666:Nose / Q000002:abnormalities* / Q000601:surgery*; D010158:Palatal Obturators; D019651:Plastic Surgery Procedures; D012225:Rhinoplasty / Q000295:instrumentation / Q000379:methods*; D016896:Treatment Outcome
keywords: cleft lip and palate; lip repair; maxillary growth