Comparative study of complications during Herbst treatment with Cantilever Bite Jumper and removable mandibular acrylic splint

Alexandre MORO, Guilherme JANSON, Ricardo MORESCA, Marcos Roberto de FREITAS, José Fernando Castanha HENRIQUES

Objective: To assess and compare the type of complications during Herbst treatment with Cantilever Bite Jumper (CBJ) and removable mandibular splint. Methods: Twenty one consecutive Herbst patients treated with the CBJ were compared with twenty one consecutively treated Herbst patients with stainless steel crowns on the maxillary first molars and a removable mandibular acrylic splint. The initial mean age for the CBJ group was 12 years and 3 months and for the Splint group was 11 years and 3 months. Both groups used the Herbst appliance for 12 months. Based on the patients? clinical records an occurrence survey of complications during Herbst treatment was performed. Results: There were 24 complications for the CBJ and 53 for the Splint group, which were statistically different (Mann-Whitney test, p<0.05). The prevalence of patients exhibiting complications during treatment was 66.67% in the CBJ and 85.71% in the Splint group. The frequencies of complications were also statistically different between the groups. Conclusions: The CBJ exhibited a significantly smaller number of complications during Herbst appliance treatment than the removable mandibular splint. Herbst appliance with first molar crowns and a cantilever on the mandibular molars is preferable to the removable mandibular acrylic splint because of savings in clinical and laboratory time.

Keywords: Herbst appliance. Class II. Complications.

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