Arismendi-E., J. A.; Castaño-G., C.; Mejía-B., R. M.; Mesa-J., A. L.; Castañeda-P., D. A.; Tobón-A., S. I. Evidence of Clinical and Radiographic Changes in Machined and Modified Surface Osseointegrated Implants: 3 to 12 Months Follow up. Rev Fac Odontol Univ Antioq 2009, 18, 6-16.