Objective: Midface retrusion is a concern in patients with complete unilateral cleft lip and palate (CUCLP). Maxillary segment alignment may influence the prognosis after corrective surgery. This study assessed the association between maxillary segment alignment and interarch relationship observed in the early mixed dentition. The null hypothesis was that there is no relation between the initial alignment of cleft segments and the width of the cleft in the infant, and the early mixed dentition interarch relationship. Setting and Sample Population: The sample consists of 352 children with CUCLP treated at the Hospital for Rehabilitation of Craniofacial Anomalies/USP. Material And Methods: Dental models were obtained before lip repair at three months and at the age of six. Based on the first, the sample was then divided into two groups: anteroposterior aligned and anteroposterior misaligned maxillary segments. They were also divided into 4 groups according to the cleft width (Narrow, Medium, Wide and Very Wide). Interarch relationship was graded using the 5-year-old index. The statistical association was evaluated using the chi-squared test (P < .05). Results: Cleft width was inversely related to interarch relationship in the early mixed dentition phase. Interarch relationship at the age of six was more favourable in children with misaligned maxillary segments than in children with aligned segments (P = .048). Conclusion: Five-year interarch relationship in patients with CUCLP is related to the anteroposterior relationship of infant maxillary segments and initial cleft width before primary surgeries. Wide alveolar clefts and sagittally aligned maxillary segments showed a worse interarch relationship in the early mixed dentition.
Objective: To evaluate the efficacy of rapid maxillary expansion (RME) and maxillary protraction (MP) in patients with unilateral complete cleft lip and palate (UCLP) using the Goslon yardstick index. Design: Retrospective study. Patients: Dental casts of 34 Goslon 3 (G3) and Goslon 4 (G4) patients treated with RME and MP were evaluated which composed the treated sample (S1). The dental cast were taken before the RME (T1) and immediately after the use of face mask for MP was suspended (T2). In order to verify the stability of the treatment, dental casts of 17 of these patients were evaluated 1 year after the treatment was finished (T3). For the control sample (S2), dental casts of 20 untreated G3 and G4 patients were evaluated. Results: At T2, 85.7% of study sample patients initially G3 and 70% of patients initially G4 obtained improvement in occlusal index. At T3, the majority of patients initially classified as G3 and G4 returned to the same classification as in the beginning of the treatment. The evaluation of the control sample showed that patients initially classified as G3, 55.6% continued at this initial index, and 44.4% had it worsened. Those initially G4, 100%, continued at this initial index. Conclusion: The immediate result of RME and MP was satisfactory, and despite the instability of these results, the outcome of this treatment option was better than the untreated sample.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.