Alveolar bone grafting is a standard procedure for occlusal, aesthetic and functional rehabilitation of patients with cleft lip and palate. The use of this technique allows for the re-establishment of maxillary continuity, enabling tooth eruption and movement through the formation of a bone bridge. Its varied success rate is related to systemic, surgical and sociocultural factors. This study will assess the success rate of alveolar bone grafts carried out at the Centrinho do Hospital Santo Antônio in Salvador-BA, between January 2013 and December 2014. Data from the medical records of the sample population will be used, as well as a clinical examination and evaluation of radiographic examinations. Epidemiological data will be correlated with the success rates of this procedure in order to establish the possible causes of poor bone formation and graft loss.