Abstract
This was a clinico pathological and bone morphometric study on several bone graft materials on the antral floor which was elevated from below. Furthermore, the useful application of the mixture of these materials was discussed in the report. Seventeen patients (5 males, 12 females, age; 39～70 y, mean average 56.8 y) were used in this study. The bone substitutes were 4 individual kinds, Interpore®, OsteoGen®, Osteograf®, and Dembone® and mixed groups, 1) Interpore group (Interpore®:OsteoGen®:Dembone®=1:1:1), 2) Osteograf group (Osteograf®:OsteoGen®:Dembone=3:2:2), and 3) Natural teeth as the control group.
As a result of implantation there was no significant sign of inflammatory reaction around the implants such as gingival redness or puffiness and mobility or percussion sensitivity of the implants.In addition, the pocket depth around the implants was 1 to 2 mm. The success of the sinus lift through implant osteotomy was confirmed at this time. Histopathologically, in the Interpore group, the average was 22.7% bone tissue (new bone 5.5%), 64.5% soft tissue, and 12.8% HA granules, while in the Osteograf group, the average was 13.5% bone tissue (new bone 1.4%), 83.8% soft tissue, and 2.4% HA granules. Therefore, all bone materials were found to maintain adequate bone quantity.
