Comparative Cephalometric Evaluation of two Methods of Deepoverbite Correction. An Implant Study - Part I

Maurício Tatsuei SAKIMA, Dirceu Barnabé RAVELI, Lídia Parsekian MARTINS, Ary José Dias MENDES, Paulo R. Tatsuo SAKIMA

A prospective study was carried out with the purpose of comparing the results of two treatment strategies for deep overbite correction. The sample comprised 27 Class II, Division 1, with deep overbite cases (age 11 to 15 years). One group was treated with a continuous arch wire technique (0.016”nickel-titanium wire with reverse curve of Spee); in other group, the segmented arch technique (Burstone) was used for correction of vertical malocclusion; a control group of nine cases was used. Metallic implants were used for superimpositions. Lateral cephalometric radiographs were used for evaluation of lower incisors. These radiographs were taken before and immediately after leveling of lower arch. Statistical analysis was performed on the collected data. The results showed that both techniques produced highly significant incisor intrusion (incisal edge). There was no difference between both treatment strategies on lower incisors. A real intrusion was observed on the center of resistance of the lower incisors treated by the segmented arch technique. A lingual movement of the root apex was observed on both techniques.

Keywords: Orthodontics. Cephalometry. Deep overbite. Metallic implants.

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