Dimensional changes of the deciduos dental arch class I with crowding, using direct planas tracks. Medellin 2012-2013

Abstract Introduction and objective: Crowding has become one of the leading causes of morbidity and consultation in pediatric dentistry, early treatment has been proposed as the best alternative to intercept malocclusions, preventing these from getting worse or perpetuate to the permanent dentition. Planas Direct Tracks (PPD) are devices with bimaxillary action aimed at neurooclusal rehabilitation at an early age, in order to rehabilitate the laterals movements of the jaw and enhace the masticatory function alternation. The objective of this study is to evaluate the dentoalveolar changes occurring in the transverse plane using PPD in patients Class I with anterior crowding between 4-5 years old. Materials and methods: The sample consisted of 6 subjects were models were performed before mounting them in the gnatostato, preparation and cementation of PPD and models six and twelve months later, to observe differences. Results: Statistically significant differences were found in the maxillary intercanine width, in maxillary intermolar distance and right space required maxillary, between the initial model and after 6 and 12 months of installed the therapy. Conclusion: Patients treated early with PPD have higher transverse development and decreased crowding, when compared with longitudinal studies in untreated patients