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Guided bone regeneration (GBR) and guided tissue regeneration (GTR) are dental surgical procedures that use barrier membranes to direct the growth of new bone and gingival tissue at sites with insufficient volumes or dimensions of bone or gingiva for proper function, esthetics or prosthetic restoration. Guided bone regeneration typically refers ...
In 1994, Nowzari challenged membrane guided tissue regeneration through a series of research publications, showing that the membrane is actually a source of infection to the grafted site. [ 7 ] Research in the field of bone grafting has been focused on autogenous sources
Socket preservation or alveolar ridge preservation is a procedure to reduce bone loss after tooth extraction. [1] [2] After tooth extraction, the jaw bone has a natural tendency to become narrow, and lose its original shape because the bone quickly resorbs, resulting in 30–60% loss in bone volume in the first six months. [3]
PETTI Gustavo From Cagliari, Italy has been the first one to have had: "A new attachment: guided tissue regeneration using an amniotic membrane and fibrin glue" Publication: Petti G. (1989) “La rigenerazione parodontale guidata con membrana amniotica e colla di fibrina. (Guided periodontal regeneration with an amniotic membrane and fibrin glue).
The size and length of these implants are chosen according to the specific clinical scenario, taking into account the patient's anatomical characteristics and the state of the bone tissue. Multi-unit abutments for screw fixation of prosthesis. Multi-unit abutments are chosen according to the soft tissue height above the bone during implantation.
It is still unclear exactly how EMD participates in the regeneration process. [5] But it has been demonstrated that EMD serves to promote periodontal ligament fibroblast proliferation and growth and inhibit epithelial cell proliferation and growth; [3] this is a key feature in EMD-promoted periodontal tissue regeneration, because the faster-growing epithelium will ordinarily compete very ...