BONE REGENERATION OF A CRESTAL DEFECT HAVING NO VESTIBULAR WALL

The sheet summarizes the case of a patient who sought surgical attention presenting conspicuous bone resorption in element 25, whose interradicular septum appeared to have been fractured by a metal pin. Atraumatic extraction of the compromised tooth was performed, observing complete absence of the vestibular wall and partial resorption of the palatal wall.mCareful debridement of the post-extraction site was then performed. After that, a first collagen membrane was placed on the palatal side, and one edge was tucked under the coronal flap, to be used as support when placing the granular graft. The site was then grafted with the mixture of cortical-cancellous granules hydrated with saline and rifamycin. Because the size of the defect and the area of the remaining surrounding bone walls indicated the situation was not particularly conducive to prompt bone regeneration, it was decided to place a second collagen membrane, identical to the first, for additional protection of the grafted site. After 6 months a full-thickness flap was opened again, clinically ascertaining defect regeneration.

PRODUCTS USED: Bio-Gen Granules Mix, Biocollagen membrane