Evaluation of the Effects of Cheiloplasty on Maxillary Arch in UCLP Infants Using Three-Dimensional Digital Models

Author:

Kongprasert Thanawut1,Winaikosol Kengkart2ORCID,Pisek Araya3,Manosudprasit Aggasit1,Manosudprasit Amornrut1,Wangsrimongkol Buddhathida1,Pisek Poonsak1

Affiliation:

1. Faculty of Dentistry, Department of Orthodontics, Khon Kaen University, Khon Kaen, Thailand

2. Plastic and Reconstructive Unit, Faculty of Medicine, Department of Surgery, Khon Kaen University, Khon Kaen, Thailand

3. Faculty of Dentistry, Department of Community Dentistry, Khon Kaen University, Khon Kaen, Thailand

Abstract

Objective: To analyze and identify changes in the maxillary dental arch before and after cheiloplasty in a group of unilateral complete cleft lip and palate (UCLP) infants. Design: This is a cohort study. Material and Method: Study models from 16 infants with nonsyndromic UCLP, who were treated at Khon Kaen University, were taken before (T1) and after cheiloplasty (T2). The dental models underwent a process of scanning through a 3D scanner, from which 9 linear and 2 angular landmarks were evaluated. Paired t test was used to compare the measurement statistically between T1 and T2. Results: Alveolar cleft gap (G-L), anterior basal angle (∠GC-CC′), and anterior arch curvature angle on greater segment (∠GIC) were significantly decreased ( P < .05). Contrarily, anterior ridge length of greater segment (C-I), anterior ridge length of lesser segment (L-C′), and posterior arch width (T-T′) were significantly increased ( P < .05) after cheiloplasty. While, anterior portion of greater segment (I-G), anterior arch width (C-C′), anterior arch depth (I⊥CC′), arch length (G⊥TT′), and arch circumference (T-C-I-G-L-C′-T′) showed no significant difference. The measurements were tested using the Intraclass correlation coefficient. The coefficients indicated high reliability. Conclusion: Cleft gap significantly decreased after lip repair, and the anterior part of maxillary dental arch was also bent palatally after cheiloplasty without any other intervention except cheiloplasty. More studies are needed to assess the amount of lip pressure. If any convincing force is presented, an appliance to prevent undesirable pressure is indicated.

Funder

Tawanchai Center

Publisher

SAGE Publications

Subject

Otorhinolaryngology,Oral Surgery

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