日本語AIでPubMedを検索
2種類のインプラントドリルを用いた副鼻腔膜穿孔の発生率。Ex Vivo動物実験
Incidence of Sinus Membrane Perforation Using Two Types of Implant Drills: An Ex Vivo Animal Study.
PMID: 35830311
抄録
このex vivo研究では、2種類のドリルとドリリングテクニックを用いてインプラントサイトの骨切りを行った際のサイナス膜穿孔の発生率を評価する。サイナス50組(100サイナス面)のヤギ頭を2群(オッセオデンシングバー[OB]群、逆円錐形状バー[ICSB]群)に分け、サイナス経底を模擬した(各群50サイナス面)。骨切りはサイナス側壁を3mm以上通過しないように行った。副鼻腔膜の完全性を顕微鏡で検査し確認した。各群50副鼻腔のうち,OB群では14個(28%),ICSB群では2個(4%)の副鼻腔に穴が開いていた.OB群の14個の穿孔のうち,6個(42.9%)はピンポイントの穿孔パターンを示し,そのうち4個(28.5%)は直接空気圧を加えるまで見えなかった.ICSBドリル群はOB群に比べ副鼻腔穿孔率が低いことが確認された.
This ex vivo study evaluates the incidence of sinus membrane perforation during implant site osteotomy with two different types of drills and drilling techniques. Fifty goat heads with 50 sinus pairs (100 sinus sides) were assigned to two groups (osseodensification bur [OB] group and inverse conical shape bur [ICSB] group) to simulate transcrestal sinus elevation (50 sinus sides per group). An osteotomy was performed to pass through the lateral sinus wall no more than 3 mm. The integrity of the sinus membranes was examined and confirmed under a microscope. Of the 50 sinuses per group, the OB group presented with 14 (28%) perforated sinuses, while the ICSB group presented with 2 (4%) perforated sinuses. Of the 14 perforations from the OB group, 6 (42.9%) showed a pinpoint perforation pattern, 4 (28.5%) of which were not visible until direct air pressure was applied. Overall, the ICSB drill group demonstrated a lower sinus perforation rate than the OB group.