Intraoral mandibular distraction osteogenesis: special attention to treatment planning.
J Craniomaxillofac Surg
; 29(5): 254-62, 2001 Oct.
Article
de En
| MEDLINE
| ID: mdl-11673919
ABSTRACT
PURPOSE:
To demonstrate our experience using internal devices for unidirectional distraction osteogenesis in treating different mandibular hypoplasias (with or without maxillary deformities). An algorithmic table for diagnosis, and treatment planning is presented. PATIENTS ANDMETHODS:
Twenty internal distraction devices were used in 16 patients with mandibular hypoplasia. Deficiency in length of the mandible was calculated on three-dimensional computed tomography scans. The device was activated by a transcutaneous pin on the fifth postoperative day. Distraction was achieved at rates of 0.5 mm/12 h. After a variable period of consolidation the devices were removed. Mean follow-up was 18 months.RESULTS:
Successful distraction osteogenesis was achieved in all patients. No premature consolidation or pseudoarthrosis was observed. Improvement of facial aesthetics was produced in all cases. Final occlusion was excellent in those cases where no simultaneous maxillary deformity was present. Orthodontic treatment was applied in all cases. Results remained stable one year postoperatively.CONCLUSIONS:
The occlusal results obtained in this series show that we can plan distraction as a definitive treatment in cases with isolated mandibular hypoplasia. When an additional maxillary deformity is present, mandibular distraction must be performed first if indicated, but a maxillary procedure will be necessary later.
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Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Procédures de chirurgie maxillofaciale et buccodentaire
/
Ostéogenèse par distraction
/
Mandibule
/
Micrognathisme
Type d'étude:
Etiology_studies
/
Prognostic_studies
Limites:
Adolescent
/
Adult
/
Child
/
Female
/
Humans
/
Male
Langue:
En
Journal:
J Craniomaxillofac Surg
Sujet du journal:
ODONTOLOGIA
Année:
2001
Type de document:
Article
Pays d'affiliation:
Espagne