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Case Reports
. 2017:2017:4652685.
doi: 10.1155/2017/4652685. Epub 2017 Feb 6.

Treatment of Class III Malocclusion: Atypical Extraction Protocol

Fernando Pedrin Carvalho Ferreira  1 , Maiara da Silva Goulart  2 , Renata Rodrigues de Almeida-Pedrin  3 , Ana Claudia de Castro Ferreira Conti  3 , Maurício de Almeida Cardoso  3
Affiliations
Case Reports

Treatment of Class III Malocclusion: Atypical Extraction Protocol

Fernando Pedrin Carvalho Ferreira et al. Case Rep Dent. 2017.

Abstract

The treatment of Angle Class III malocclusion is rather challenging, because the patient's growth pattern determines the success of long-term treatment. Early diagnosis and treatment are still highly discussed issues in orthodontic literature. This type of early intervention has been indicated more frequently in order to eliminate primary etiological factors and prevent an already present malocclusion from becoming severe. However, when a patient is diagnosed in adulthood, manipulation of the bone bases becomes extremely limited, as there is no longer any potential for growth. Treatments are restricted to dental compensations when possible or orthognathic surgery. However, owing to the high cost and inherent risk of the surgical procedure, this treatment option is often denied by the patient; in such a case, the orthodontist has little choice but to perform, where possible, compensatory treatments to restore a functional occlusion and improve facial esthetics. This article reports a case of Class III malocclusion in a patient who opted for compensatory treatment with lower molar extraction that allowed for correction of the midline and the overjet. Good facial esthetics and functional normal occlusion were achieved at the end of the treatment.

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Conflict of interest statement

The authors have no competing interests to disclose.

Figures

Figure 1
Figure 1
Pretreatment facial and intraoral photographs.
Figure 2
Figure 2
Pretreatment panoramic and cephalometric radiographs.
Figure 3
Figure 3
Intraoral views of treatment. Start of leveling, extraction of tooth 36, and segmented arch in the lower arch.
Figure 4
Figure 4
Intraoral views of treatment. Bonding the lower incisor, intermaxillary elastics, and loop to start closure extraction space.
Figure 5
Figure 5
Intraoral views of treatment. End of leveling 0.017′′ × 0.025′′ stainless steel wire and retraction loops applied to close the extraction space and to correct the midline deviation.
Figure 6
Figure 6
Intraoral views of treatment and panoramic radiograph. Bonding tooth 38, cantilever applied to upright tooth 37, and elastic chain to close the remaining spaces. Panoramic radiograph showing uprighted good position of tooth 38.
Figure 7
Figure 7
Posttreatment facial and intraoral photographs, and cephalometric radiograph.
Figure 8
Figure 8
Posttreatment facial and intraoral photographs, and cephalometric radiograph (2 years after treatment completion).
See this image and copyright information in PMC

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