RESUMO
The aim and objective of this study is to report the recurrence of the treatment of the anterior open bite after 5 years of treatment. A female patient aged 8 years 6 months old had a negative vertical crossing of -4.7 mm. Early treatment with a fixed palatal grid was performed for 1 year. At the end of the treatment, the vertical overpass was 1.1 mm and after 2 years of control, the vertical overpass remained positive with 1.7 mm showing the stability of the treatment. After 5 years, and due to the sucking and lingual interposition habit, there was a recurrence of the open bite. Interdisciplinary follow-up is extremely important to eliminate the factors responsible for the origin of deleterious habits, thus solving the changes resulting from these habits and providing long-term stability. How to cite this article: Justulin AF, Rossato PH, Conti ACCF, et al. Relapse of Anterior Open Bite: A Case Report. Int J Clin Pediatr Dent 2021;14(1):140-144.
RESUMO
AIMS: To evaluate changes in transverse dimensions of upper arch and thickness of the buccal bone plate in patients undergoing orthodontic treatment during the leveling phase. MATERIALS AND METHODS: Sixteen patients aged between 11 and 30 years, presenting with class I and II malocclusion, with minimum of 2 mm crowding treated without extraction, were divided into two groups: GI (n = 8), self-ligating brackets (Easyclip Aditek), and GII (n = 8), conventional preadjusted brackets (3M Unitek). The intercanines, interpremolar, and intermolar widths were measured in dental casts using a digital caliper, before (T1) and after 6 months of treatment (T2). Measurements of the thickness of the bone plate were performed by using cone-beam computed tomography (CBCT) scans and Dolphin three-dimensional program. Paired and nonpaired t tests were applied to analyze the results in and between the groups for the changes in the transversal arch dimensions and buccal bone thickness. RESULTS: In all statistical tests, the significance level was set at 5%. A nonsignificant increase in transverse dimensions and a slight reduction on thickness of the buccal bone plate were observed in both groups. CONCLUSION: The dimensional changes of transverse and thickness of the bone plate during the initial phase of treatment were similar, regardless of the bracket design. CLINICAL SIGNIFICANCE: It should be noted that the bracket design does not influence the treatment course regarding transversal dimensions and buccal bone thickness.
