Maxillary central incisor and rugae distance in angle class I and II malocclusion: a comparative study

Abstract

Background: Malocclusion can be defined as an abnormal occlusion between teeth in the same arch or in opposing arches. Malocclusion cases can be treated with orthodontic care, which can be evaluated using palatal rugae. Several studies have shown that palatal rugae have high stability, making them very suitable for use as a means of identification and evaluation in malocclusion treatment. Purpose of this study was to determine the difference in the distance between the first maxillary incisors and the second palatal rugae in Angle Class I and Angle Class II students of the 2015 and 2016 cohorts at the Faculty of Dentistry, Padjadjaran University. Methods: This study was an analytical cross-sectional study with a quantitative approach conducted at the orthodontic laboratory of the Faculty of Dentistry, Padjadjaran University. The sample consisted of 99 study models of 2015 and 2016 students divided into
two groups, Angle Class I and Angle Class II. The measurement of the distance between the incisors and the second
palatal rugae was performed three times, and the average value was taken. Results: Data analyzed with the t-test showed no significant difference between the two sample groups with a p-value > 0.05. Conclusion: There was no difference in the distance between the first incisal edge of the upper jaw and the second palatal rugae in Angle Class I and Class II classifications.