Artículo Clínico. Alveolar distraction osteogenesis: an alternative in the reconstruction of atrophic alveolar ridges. Report of 10 cases. Distracción osteogénica. Distracción osteogénica mandibular en microrretrognatia severa del adulto. M. Castrillo Tambay1, I. Zubillaga Rodríguez2, G. Sánchez Aniceto2, R. Gutiérrez. Distracción osteogénica expositor y editor: Santos Busso, Alfonso N. Distracción osteogénica ¿Qué es? Distracción osteogénica Historia.
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The DO technique presents wide possibilities of use in some areas of Dentistry, as Surgery, Orthodontics, Facial Orthopedic and also in the Oral Rehabilitation where one of the major problems is the alveolar bone loss, the support for distraccipn, implantations and adjacent soft tissues.
The average bone gain in millimeters achieved in the 10 cases was 7. The use indications have grown for the most diverse types of bones deformities. Histologic and radiographic analysis. Introduction of an intraoral bone-lengthening device. Mandibular lengthening by distraction for airway obstruction in Treacher- Collins syndrome.
Montalvo Moreno 4 1 Medico residente.
Distraccion Osteogenica Mandibular Pdf Download – finmerdforkbac : Inspired by
Mechanically induced tissue response during distraction. This phase usually lasts weeks, and the traction modifies the normal development of the regeneration process; and Consolidation phase is the period that allows the maturation and corticalization of the regenerated bone.
The use of ADO in the reconstruction of atrophic alveolar ridges has been shown to be a method that offers increased alveolar ridge height with bone and soft tissue gain, adapting the ridge for posterior rehabilitation of the patient by means of implants, it being a predictable method with low rates of bone absorption, in comparison with the use of bone grafts or alloplastic materials.
Distraction osteogenesis is a technique for induction of new bone formation between two segments of a bone that presents wide possibilities of use in Dentistry.
Forty obstructive apneas were detected and 94 hypopneas.
Distraccion Osteogenica Mandibular Pdf Download
Exposure of the device due to suture dehiscence 2 cases was observed among the main problems found. Allungamento graduale controllato della mandibola dopo osteotomia. Seven 7 days after the placement of the device, the reabsorption of the suture was performed and the patient was instructed on how to perform the activation of the distractor by means of an activation key, following a pattern of 3 daily activations, corresponding to a complete circle of the key each circle 0,33 mmthe distraction rate being 0,99 mm daily, until the device activation limit was reached.
Mandibular distraction osteogenesis in the treatment of upper airway obstruction in children with craniofacial deformities. Int J Oral Maxillofac Surg ; The concept of callotasis is of interest in implant surgery, especially monofocal callotasis for the linear regeneration of tissues. More recently, DO has modified the treatment form of the congenital and acquired craniofaciais defects Altuna et al.
Until the present moment, the process that the mechanical forces created by the distraction osteogenesis are translated in biological signals able to induce osteogenesis in a perfectly coordinated way is osteogenia not clarified. Other potential inconveniences associated with these procedures are neurological and provoked by the surgical technique and by the changes in the temporomandibular joint TMJ due to the rigid fixation in mandibular osteotomies.
Maxillomandibular advancement surgery in 23 patients with obstructive sleep apnea syndrome. The concept of osteotomies was established in the century XIX when Malgaine described the concept of the external setting in the treatment of patelares composed breakings McCarthy et al. After the infiltration of local anesthesia, a 5 mm horizontal incision was performed under the alveolar ridge with the elevation of a full thickness flap, exposing the vestibular cortex Fig.
After distraction, atrophy of the epithelium was observed, with the disappearance of papillae and the loss of intercellular connections in osteogdnica and spinous layers, the formation of dilated capillaries was sistraccion in the lamina propria, there was a mild inflammatory infiltrate, and the collagen fibers were distributed parallel to the distraction vector. Surgical treatment of adults with OSAS should be established for certain patients possessing the right characteristics; from these owteogenica will be able to select a candidate for treatment by means of DO; more experience is still required given that the number of patients treated with this technique is still scarce.
This technique was only osteogneica out when Ilizarov presented his studies in a Symposium occurred in New York in the year of a, b. Management of severe mandibular retrognathia in the adult patient using distraction osteogenesis. Alveolar ridge augmentation by distraction osteogenesis.
However, in the case that concerns us there was one great disadvantage in that the mandibular advancement required for solving the OSAS was more than 10 mm, while the maximum limit for mandibular advancement by means of bilateral sagittal osteotomies is 10 mm; in addition the risk of relapse is greater, the greater the advancement required due to the tension exerted by the soft tissue attached to the mandible.
DO have been used successfully in the surgeries of increase bone rim with diverse purposes. Ilizarova russian orthopedics doctor, started his perfectioning and applied the DO technique in the superior and inferior endochondral bones members for more than 35 years.
Distraction osteogenesis of the mandible with a modified intraoral appliance: Later on 10 weeks like part of the period of bony consolidation were awaited and one carries out the placement of the osseointegraded implants and the retirement of the distraction device, being able to check clinic and radiographic the gain of the height and necessary bony volume for the rehabilitation by means of implants.
Mandibular lengthening by gradual distraction.
At 8 weeks, the epithelium had a completely normal appearance, with no scars in osteogenicz area. Distraction osteogenesis in adult obstructive sleep apnea surgery: J Oral Maxillofac Surg ; Br J Oral Maxillofac Surg ; One of the important applications occurs in the extensive oral rehabilitations cases where unsatisfactory prosthetic reconstructions are frequent because of the advanced alveolar rim loss ostfogenica the difficulties in recovering it with enxertia.
The operative lengthening of the femur.
The role of surgery in the treatment of OSAS is nevertheless controversial, given that the existence of a non-aggressive technique that has demonstrated its efficiency as a treatment, such a CPAP, seems to limit the indications for surgery. There has been little study of changes in the oral mucosa as a consequence of distraction. It can be classified in two basic types: Then there was a 10 week wait for the reabsorption of the distractor Fig.
As treatment for this, the distraction process was halted for 12 hours, in addition to the relevant medical treatment, after which the distraction process was started at the same rate in order to reach an elongation of 19 mm.