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Skeletal class III malocclusion: orthodontic-surgical treatment with branch sagit ostomy and progression genioplasty

2018, Volumen 48, Número 1
Yulieth Tatiana Torres-Orozco, Beatriz Gurrola-Martínez y Adán Casasa-Araujo
Residente de segundo año de la Maestría en Ortodoncia y Ortopedia Maxilofacial. Centro de Estudios Superiores de Ortodoncia (CESO);

Male patient of 18 years 3 months, your complaint was “for treatment” is presented. In the intraoral analysis was diagnosed class III skeletal hyperdivergent, prognathism, Laterognatia vertically over the lower third molar and canine Class III, maxillary hypoplasia, anterior and unilateral posterior crossbite, lip incompetence, oral breathing, mild maxillary crowding, third upper right molar In formation, the right lower third molar in formation, the left lower third molar in formation, the upper left third molar, with these habits: digital and lip suction, bruxism, oral respirator. The treatment was carried out in three phases, preoperative phase: alignment, leveling (dental decompensation), (occlusal stability), maxillary transverse expansion. Surgical phase: maxillar surgery (Le Fort I impaction 2 mm and advance 5 mm, sagittal osteotomy of branch of 2 mm, genioplasty of advance of 3 mm). Post-surgical phase: detailed and retention. The appliances were used prescription brackets Roth 0,022” × 0,028” split surgical hooks (2 mm in length) 0,022” × 0,028” bands in molars firths and second, for the last phase direct bonding tubes on 16 and 17. The active treatment time was 1 year 11 months. Upper and lower circumferential retainers positioned with buccal belt. Treatment outcome was successful with obtaining bilateral Class I canine and molar suitable horizontal and vertical overbite, coincident midlines, corrects intercuspation and harmonious facial profile.  (Rev Esp Ortod. 2018;48(1):033-041)

Key words:
Maxillary hypoplasia. Anterior crossbite. Digital suction. Mandibular genioplasty.
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