The impact of two-socket preservation approaches on the soft and hard tissue healing: a short-term study in dogs.

The present study was designed in the context of the uncertain circumstances related to the best therapeutic option for ridge preservation. The research aimed to investigate the quality of early healing processes developed in the former sockets preserved with a collagen matrix alone or associated with a bone substitute in comparison with naturally-healed sockets, using an animal model previously validated. In both quadrants of the mandible of two dogs, the distal sockets of the second and fourth premolars served as experimental sites.