Análise laboratorial de um novo protótipo de posicionador de bráquetes ortodônticos do tipo pole-like

Abstract

The study presents and evaluates a proponent of proposed objectives or objectives developed with the purpose of minimizing personalization errors. The proposed instrument was designed and prototyped in stainless steel for laboratory testing. These were performed by three groups with different lengths of clinical experience in orthodontics: the group composed of orthodontic students; Group 2, by orthodontists with less than five years of clinical experience; and Group 3, by orthodontists with more than five years of clinical experience. Each group was composed of members who bonded 0.022” x 0.028” edgewise standard brackets at a height of 4.0 mm on a tipodont manikin, with Class I malocclusion and dental crowding, in maxillary incisors, canines and premolars and lower. They will use the instrument as a post and, in a second moment, with an interval of thirty days between the gluing, or the binding. Subsequently, photographs of the mesial faces of the specimens were taken and molded from the collage heights in the Keynote software. The use of the device in Groups 2 and 3 presented measurements closer to the pre-established, 4.0 mm, in relation to the stick-type instrument. Similarly, the smallest was done in the variation mechanism groups. Regarding the group of teeth, the ones presented the lowest variances in the group of incisors, followed by the canines and premolars. The results obtained are also accurate, presenting smaller results, with measurements closer to the predetermined value in the vertical determination tools of Groups 2 and 3.