Costales LLM, Guzmán VI

Language: Spanish
References: 5
Page: 136-142
PDF size: 1628.17 Kb.

ABSTRACT

The case of a 20 year old man with severe class III maloclussion due to mandibular prognathism and maxillary retrusion who also presents severe laterognathia with condylar hyperplasia and deficient zygomatic projection with dental crowding caused by a collapsed maxilla is hereby presented. The treatment objectives were: to establish a correct overbite and overjet, to provide an stable occlusion and correct the sagittal and transversal problems as well as to improve function in order to promote a better quality of life. Treatment consisted in 3 phases: presurgical orthodontics, the surgical procedure and a postsurgical orthodontic phase. The maxilla was advanced 5 mm and intruded 3 mm in the posterior region with a Le Fort I osteotomy. A vertical osteotomy with an extraoral approach was performed in the mandible for the correction of the laterognathia. Intermaxillar fixation was used after surgery. Treatment results exceeded the expectations for the clinicians and for the patient himself by achieving a correct function and improving significantly the patient’s aesthetics.

REFERENCES

1. Proffit W. Ortodoncia contemporánea. 4a. ed. España: Ed. Elsevier; 2008.

2. Sekiya T. Elimination of transverse dental compensation is critical for treatment of patients with severe facial asymmetry. Am J Orthod Dentofacial Orthop. 2010; 137: 552-562.

3. Yanagita T. Class III malocclusion with complex problems of lateral open bite and severe crowding successfully treated with miniscrew anchorage and lingual orthodontic brackets. Am J Orthod Dentofacial Orthop. 2011; 139: 679-689.

4. Trauner R, Obwegeser H. The surgical correction of mandibular prognathism and retrognathia with consideration of genioplasty. I. Surgical procedures to correct mandibular prognathism and reshaping of the chin. Oral Surg Oral Med Oral Pathol. 1957; 10: 677-689.

5. Blakey GH, White RP. Mandibular surgery. In: Proffit WR, White RP, Sarver DM, eds. Contemporary treatment of dentofacial deformity. St. Louis: Mosby; 2003.