Management of Anterior Open Bite in a Biprotusive Patient with Mini-Implants: Clinical Case Report
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Abstract
Introduction: Anterior skeletal open bite is one of the most complex malocclusions to treat with conventional orthodontics. Thanks to the use of mini-implants, it has been possible to obtain results very similar to those of orthodontic-surgical treatment. Objective: to present the clinical case of a class II patient with anterior open bite treated with orthodontics and mini-implants. Case presentation: 32-year-old female patient, with a cephalometric diagnosis of skeletal class II biprotrusive, hyperdivergent; dental diagnosis of left molar class I, canine class II, anterior open bite of -3 mm, non-coincident midlines; facially, she presents biprotrusive convex profile and lip incompetence. With lingual habit etiology and increased lower facial height. The orthodontic-surgical treatment, initially proposed, was rejected due to refusal of surgery, and a compensatory treatment with mini-implants in the infrazygomatic area and in the retromolar area, bite turbos were placed for adequate vertical control. The distalization of the upper arch was performed using elastic chains, achieving mandibular anterotation, a vertical overbite of +1 mm, and upper distalization of +1 mm. Conclusions: The use of mini-implants as skeletal anchorage allowed distalization as well as controlled intrusion of the upper molars, favoring clockwise mandibular rotation and significantly contributing to anterior bite closure.
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