齒槽脊的解剖型態會因為牙齒拔除而改變。骨脊保存術可以提升未來要植牙或做假牙橋體位置的可預測性與美觀,另外以拔牙窩洞封閉術做輔助,在齒槽脊垂直或水平向的保存都有顯著更好的臨床結果。本病例報告提出兩例,依據治療需要選用Cerasorb®或Bio-Oss®做骨脊保存術,搭配自體牙根切片做拔牙窩洞封閉術,觀察及追蹤其治療結果。本文提出一個新穎的方法是以自體牙根切片執行拔牙窩洞封閉術,此術式優點是生物相容性高,可有效隔離骨移植材免於口腔環境的污染,不會吸收也不因為附近組織有急性發炎的狀況受到感染。與其他軟組織自體移植術式相比,缺少了供體部位的傷口,也可減少術後不適感。術後6個月可見組織切片上有高比例的活骨新生,術後1年整體狀況皆維持良好與穩定,結果顯示本術式是一個可行的骨脊保存術的方法,但仍須更多研究來支持此結論。
The dimension of the alveolar ridge changes as a result of tooth extraction. Alveolar ridge preservation improves the predictability and aesthetics of following dental implant or conventional bridge. In addition, ridge preservation procedures with socket seal technique can reduce vertical and horizontal ridge resorption and achieve better clinical results. This case report consists of two patients who were treated with either Cerasorb® or Bio-Oss® for ridge preservation, followed by socket seal technique with autogenous root section. Both cases were followed for one year. In this article, we proposed a novel socket seal technique for ridge preservation, the extraction socket sealed with autogenous root section which was non-resorbable and highly biocompatible, facilitating the blood clot stabilization and protecting the extraction wound from bacterial contamination or physical trauma. In addition, the absence of morbidity in the donor site reduces postoperative discomfort compared with autologous soft tissue graft. A high proportion of vital bone formation was observed histologically 6 months after surgery. The optimal outcome was achieved and maintained for 1 year post-operatively. In conclusion, utilizing the autogenous root section to seal the extraction wound could be a treatment option to enhance the outcome of the ridge preservation.