Analysis of orthopedic treatment of skeletal Class III malocclusion with Rapid Palatal Expansion and Face Mask therapy

Authors

  • Ana de Lourdes Sá De Lira Universidade Estadual do Piauí – UESPI - School of Dentistry - Department of Pediatric Dentistry and Orthodontics - Area of Integrated Clinic – Parnaíba – PI - Brazil. https://orcid.org/0000-0002-9299-1416
  • Igo Rafael Costa Araújo Universidade Federal do Piauí – UFPI - School of Dentistry - Department of Orthodontics - Area of Integrated Clinic - Teresina, PI, Brazil.

DOI:

https://doi.org/10.14295/bds.2019.v22i4.1794

Abstract

Aim: To demonstrate the main effects on maxillary and facial profile after treatment with expansion and face mask therapy in patients pattern III Class III. Material and Method: A cross-sectional study of maxillary expansion and reverse traction performed in 4 patients with maxillary deficiency, in the pre-peak pubertal growth stage and in the mixed dentition, with cephalograms before and after treatment, using angular measurements (SNA, SNENA, ANL and 1NA) and linear (S’-ENA, S’-A, 1-NA, OVERJET, S-LS and S-LI) and plot overlays. Results: Improvement in overjet was observed, going from negative to positive in all cases treated with incisor uncrossing, although it was not statistically significant. The upper and lower labial posture with respect to the base of the nose and the ment improved significantly, represented by the measurements S-LS and S-LI, with a change from the concave profile to slightly convex. Conclusion: Class III malocclusion with maxillary deficiency treated with rapid maxillary disjunction and reverse traction with facial mask was effective in both groups, with maxillary protraction and shifting in the concave to slightly convex profile.

Keywords

Facial Mask; Rapid maxillary expansion; Class III.



Author Biographies

Ana de Lourdes Sá De Lira, Universidade Estadual do Piauí – UESPI - School of Dentistry - Department of Pediatric Dentistry and Orthodontics - Area of Integrated Clinic – Parnaíba – PI - Brazil.

Department of Pediatric Dentistry and Orthodontics

Igo Rafael Costa Araújo, Universidade Federal do Piauí – UFPI - School of Dentistry - Department of Orthodontics - Area of Integrated Clinic - Teresina, PI, Brazil.

Department of Orthodontics

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Published

2019-10-31

Issue

Vol. 22 No. 4 (2019): Oct. - Dec. / 2019 - Published October 2019

Section

Clinical or Laboratorial Research

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