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Case Reports
. 2011 Aug;19(4):431-9.
doi: 10.1590/s1678-77572011000400022.

Early treatment of Class III malocclusion: 10-year clinical follow-up

Marcio Rodrigues de Almeida  1 , Renato Rodrigues de Almeida, Paula Vanessa Pedron Oltramari-Navarro, Ana Cláudia de Castro Ferreira Conti, Ricardo de Lima Navarro, José Gustavo Dala Déa Camacho
Affiliations
Case Reports

Early treatment of Class III malocclusion: 10-year clinical follow-up

Marcio Rodrigues de Almeida et al. J Appl Oral Sci. 2011 Aug.

Abstract

Angle Class III malocclusion has been a challenge for researchers concerning diagnosis, prognosis and treatment. It has a prevalence of 5% in the Brazilian population, and may have a genetic or environmental etiology. This malocclusion can be classified as dentoalveolar, skeletal or functional, which will determine the prognosis. Considering these topics, the aim of this study was to describe and discuss a clinical case with functional Class III malocclusion treated by a two-stage approach (interceptive and corrective), with a long-term follow-up. In this case, the patient was treated with a chincup and an Eschler arch, used simultaneously during 14 months, followed by corrective orthodontics. It should be noticed that, in this case, initial diagnosis at the centric relation allowed visualizing the anterior teeth in an edge-to-edge relationship, thereby favoring the prognosis. After completion of the treatment, the patient was followed for a 10-year period, and stability was observed. The clinical treatment results showed that it is possible to achieve favorable outcomes with early management in functional Class III malocclusion patients.

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Figures

Figure 1
Figure 1
Pretreatment extraoral (A and B) and intraoral (C-G) photographs. Initial panoramic x-ray (H) and lateral cephalogram (I) (parents signed informed consent authorizing the publication of these pictures)
Figure 2
Figure 2
Frontal intraoral view showing an anterior crossbite - intercuspal position (A). Frontal intraoral view showing the edge-to-edge contact of the incisors - centric relation (B)
Figure 3
Figure 3
Extraoral (A) and intraoral (B) photographs (parents signed informed consent authorizing the publication of this picture)
Figure 4
Figure 4
End of interceptive phase: extraoral (A and B) and intraoral (C-E) photographs at the end of the interceptive phase, panoramic x-ray (F) and lateral cephalogram (G) (parents signed informed consent authorizing the publication of these pictures)
Figure 5
Figure 5
Two-year follow up after interceptive phase: extraoral (A) and intraoral (B) photographs presenting the diastema between upper central incisors. Lateral cephalogram (C) and panoramic x-ray (D) (parents signed informed consent authorizing the publication of this picture)
Figure 6
Figure 6
Intraoral photographs showing the fixed appliances (A-C)
Figure 7
Figure 7
End of corrective phase: extraoral (A,B) and intraoral (C-E) photographs, Panoramic x-ray (F) and Lateral cephalogram (G) (parents signed informed consent authorizing the publication of these pictures)
Figure 8
Figure 8
Follow-up at 10 years after the treatment: extraoral (A and B) and intraoral (C-G) photographs, Panoramic x-ray (H) and Lateral cephalogram (I) (patient signed informed consent authorizing the publication of these pictures)
Figure 9
Figure 9
Superposition of initial, final, and follow-up cephalometric tracings of interceptive phase (A). Superposition of initial, final, and follow-up cephalometric tracings of corrective phase (B)
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