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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In spite of being a method capable of offering success in regards to the increase in height of the alveolar ridge as well as an increase in the soft tissue level, the ADO is not osetogenica substitute for autogeneous otseogenica graft in those cases in which there is deficiency in regards to ridge thickness, it being possible to perform combined procedures of ADO and posterior placement of the autogeneous graft.
Minor complications arising in alveolar Distraction osteogenesis.
Int J Oral Maxillofac Impl ; These last ones, although to be more steady and malleable, made it difficult for the patients for being discomforted. The concept of callotasis is of interest in implant surgery, especially monofocal callotasis for the linear regeneration of tissues.
Distraccion Osteogenica Mandibular Pdf Download
Differences in mandibular distraction osteogenesis after corticotomy and osteotomy. This fact, in addition to the need for at least two surgical procedures, one for placing the distractor and another for removing it, and the treatment that is long, and which entails four months and greater cost, should lead us to chose correctly those cases we are to treat. Some tissues besides bone have been observed to form under tension stress, including mucosa, skin, muscle, tendon, cartilage, blood vessels, and peripheral nerves Cohen et al.
However, the DO also has its inconveniences; the main one is based on the direction of the vector of distraction, a factor that increases when two or more distractors are used simultaneously that require a parallelism to be maintained among them; 3 in the case of mandibular advancement, the tendency to develop open bite during the distraction is frequent.
Studies about compression, twist and shear forces application of the bone prolongated by osteogenesis osteogsnica had been carried out. With respect to the frequency of distraction, he recorded better outcomes when osteogenixa was performed 60 times a day compared with 1 or 4 times a day.
Modification of the in vivo four-point loading model for studying mechanically induced bone adaptation. The biology of fracture healing in long bones. 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.
The ADO is a method that allows us to augment alveolar ridge height with new bone formation 3,9,12 as well as to obtain a significant increase of the surrounding soft tissues, offering a predictable result, with low morbidity and infection rates and a significantly shorter waiting period for rehabilitation with implants 10 weeks in comparison with the traditionally used methods.
The patient currently has the correct occlusion and the sleep study carried out after the surgical correction using the same team and under the same conditions revealed the following data: Once osteoenica distractors were fixed, these were tried in order oosteogenica ensure that they functioned properly and they were put back into place before closing the incision.
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This same year, Chin and Toth 8 reported the clinical use of ADO as a treatment in alveolar ridge deficiencies in the upper maxillary. What should your therapeutic option be?
Montalvo Moreno 4 1 Medico residente. 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 osetogenica bone loss, the support for protheses, implantations and adjacent soft tissues.
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 distraccioon height and necessary bony volume for the rehabilitation by means of implants.
Skeletal distraction of the hypoplastic mandible. Conclusions Surgical treatment of adults with OSAS should be established for certain patients possessing the right characteristics; from these we 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.
Latency phase is the period between performance of osteotomy and start of the traction, during which soft callus is formed. The use indications have grown for the most diverse types of bones deformities.
Introduction of an intraoral bone-lengthening osteogenca. It was verified that after a period of stabilization between 4 and 8 weeks, after the distraction forces application, the levels of regenerated bone compressibility and twist already met normalized, although the levels of shear strenght, exactly after 8 weeks still remain reduced.
Mechanically induced tissue response during distraction.
Distraction osteogenesis of the mandible with a modified intraoral appliance: In the continuous DO an intramembranous bone regeneration occurs, while in the not continuous distraction process the regeneration follows a standard of chondroid ossification.
After disyraccion, atrophy of the epithelium was observed, with the disappearance of papillae and the loss of intercellular connections in granular and spinous layers, the formation of dilated capillaries was increased in distdaccion lamina propria, there was a mild inflammatory infiltrate, and the collagen fibers were distributed parallel to the distraction vector.
Distraccion osteogenica by Pox Santos Busso on Prezi
Conjunctive papillae began to appear, the epithelial thickness increased, and the cells recovered a normal architecture, although the inflammatory infiltrate and low thickness of the oosteogenica layer persisted. The techniques traditionally used in patients who present alveolar ridge atrophy in order to achieve adequate bone height for osseointegrated implant placement are mainly based on the use of autogeneous bone grafts1 as well as the use of osteogenifa materials.
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 oteogenica or alloplastic materials.
Its fixation was performed by 8 mm monocortical screws and then the activation to thus determine the absence of obstacles and therefore the free displacement of the transport segment Figs. Biomechanics of mandibular distractor orientation: The implants placed presented adequate osseointegration in every case. Rat mandibular distraction osteogenesis: Br J Oral Maxillofac Surg ; The calotasis is being used more in the distraction osteogenesis in experimental models and clinical applications because the clinical difficulties associates to the first principle epiphyseal tissues fragility distrqccion the setting of traction mechanical systems and the new bone formation inhibition dishraccion the trauma generated for these instruments.
Following a consolidation ostdogenica of four months, the distractors were removed by means of the same approach, and in the same surgical act a reduction mentoplasty with advancement was performed, all under general anesthesia. Then there was a 10 week wait for the reabsorption of the distractor Fig.
Returning to the case that concerns us, we are presented with a young man, with no associated medical pathology, who distraccionn previously tried CPAP treatment but had experienced an unsatisfactory clinical response with low tolerance and who had, in addition, severe micro-retrognathia.