抄録
A 52 year-old man (born in 1949) presented on January 22, 2002 wishing to receive implant treatment. Approximately 20 years before presentation, the patient was hit directly on the face by a ball while playing baseball and four maxillary anterior teeth were avulsed, resulting in extremely strong resorption of the bone. Although he was using a conus denture, he visited our clinic requesting implant treatment. According to a panorama radiograph and CT scans (transverse section and cross section, it was not possible to place implants in the left maxillary anterior tooth region where bone defect was extensive. The patient desired not only to receive prosthetic treatment for the defect, but also to restore the contour of the gingiva to its original shape. The treatment plan was to place two implants in the right maxillary anterior tooth region where bone was present, as well as to conduct bone grafting in the region with extensive bone defect, and placing implants after the bone volume has been augmented.
