Accuracy in Mixed Dentition Arch Length Discrepancy Prediction Methods in Surabayan Children

Objective: Accurate space evaluation in malocclusion using arch length discrepancy (ALD) analysis is essential for effective orthodontic interceptive treatment during the mixed dentition (MD) phase and growth and development stage (GDS). The study aimed to analyze ALD using the Sitepu, Moyers, and Tanaka- Johnston methods and also the ALD measurement technique (brass wire and segmentation technique) in Surabayan children with Angle's Class I malocclusion during the MD and GDS. Materials and Methods: A total of 60 study models of Javanese children during MD and GDS at the Dental Hospital of Airlangga University were used based on the inclusion criteria. Cervical vertebral maturation stage was used to determine the GDS. Lateral cephalometry was investigated with Steiner's analysis < A point-nasion-B point to determine the skeletal malocclusion. ALD analysis was conducted based on the Moyers, Sitepu, and Tanaka-Johnston methods. Results: > 0.05). Conclusion: The results of this MD and GDS study showed there were statistically significant differences in ALD among the Moyers, Sitepu, and Tanaka-Johnston methods for the maxilla, but not the mandibular arches.