This study analyzed the examination records and radiographs of 247 patients (144 male, 103 female) who received an OSSTEM Implant (Seoul, Republic of Korea) at the dental clinic at Chosun University, Korea, between January 2002 and December 2005. The overall success rate in patients who received an OSSTEM Implant from surgeons of the Department of Oral Surgery at our hospital was 93.1%, making the overall failure rate relatively low (6.9%). The failure rate for the maxillary molar tooth was slightly higher, at 9.95%, probably as a result of its relatively lower bone quality and reduced osteoid volume caused by pneumatization of the maxillary sinus. Thus, to determine appropriate treatment, it is necessary to accurately determine bone quality and volume. This can be achieved with implant placement analysis of computed tomography, precise preoperative planning, and sufficient technical experience.