Regeneración ósea en sector posterior del maxilar inferior atrófico con técnica de membrana no reabsorbible

The aim of this study was to evaluate the regenerative bone capacity of a lateral regeneration technique used to modify the width of an atrophic jaw with filling material and membrane cover and to analyze the success of the dental implant bone integration placed in the area. Material and Methods: 10 patients, partially toothless, were treated in their inferior jawbone sector. Lateral regeneration procedures were carried out with non reabsorbing membrane of high density non-expanded polytetrafluoroethylene (PTFE) and filling material such as a desmineralized and mineralized bone allograft. The regenerated borders were intervened between 5 and 6 months after regeneration. The jaw width was calculated by means of a caliber in two points of the alveolar border area. A total of 30 implants having a 3,3 to 4,1 mm diameter and 8 to 10 mm length were placed and the cervical bone stability around them were analyzed by means of a radiographic study after 1, 2 and 3 years. Results: The results showed an increase in the alveolar border width of 6,5 ± 0,13 mm average compared to the 1,90 ± 0,12 mm width previous to regeneration. Besides, the regeneration obtained allowed, in all cases, the implants placement with an adequate position in the lingual vestibule direction of the border and its protetic rehabilitation. When evaluating the cervical bone stability around the implants, it was observed that after three years the bone loss was not significant. Conclusion: This lateral bone regeneration showed predictability in the results when observing an increase in the alveolar border width and the possibility of implant placement and rehabilitation of the affected sectors. Palabras clave: Regeneracion osea, membrana no reabsorbi- ble, hueso de relleno, implantes dentales.