It is known that postextraction socket resorption may lead to a mean loss of buccal-lingual width of approximately 4 mm as well as a mean loss of height of approximately 2 mm, primarily in the first 3 months. Such alterations, in turn, may lead to esthetic problems and even prevent implant placement. In this context, alveolar ridge preservation with particulate bone grafts has been considered a valid technique to prevent postextraction socket resorption.

Several types of bone grafts have been used in dentistry. While autogenous grafts promote osteoinduction, osteogenesis, and osteoconduction, they have limitations such as risk of trauma to the patient and donated bed morbidity. Allogeneic grafts, in turn, also have limitations such as high cost, possibility of virus transmissibility, and triggering immunological reactions. On the other hand, all of these aforementioned limitations can be avoided by using xenografts.

Among the available xenografts, bovine and...

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