口腔疾病防治2026，Vol.34Issue(6)：556-564,9.DOI:10.12016/j.issn.2096-1456.202660002
上颌窦底形态对液压提升手术安全性影响的三维有限元研究
Effect of maxillary sinus morphology on the safety of hydraulic sinus floor elevation:a three-dimensional fi-nite element analysis
摘要
Abstract
Objective To investigate the influence of sinus morphology on the safety of hydraulic sinus floor eleva-tion surgery and provide a biomechanical basis for clinical treatment.Methods After approval by the Medical Ethics Committee of the institution,cone beam computed tomography imaging data from nine patients were collected.The sinus morphologies were classified into slope,flat and concave types.Three-dimensional finite element models of maxil-lary sinuses with the aforementioned morphologies were constructed using Mimics,Geomagic,Solidworks,and ANSYS software,followed by a simulation of the hydraulic elevation process.The sinus membrane elevation height was set at 1-6 mm.The pressure required for elevation and the equivalent,compressive,tensile,and shear stresses generated on the sinus membrane were recorded and analyzed.The equivalent stress distribution on the sinus membrane was visual-ized using contour plots.Results The elevation pressure and the equivalent,compressive,tensile,and shear stresses generated on the sinus membrane increased along with the elevation height.When the sinus membrane was lifted to 6 mm,the elevation pressure was(301.17±98.1)kPa,(151.85±3.7)kPa,and(149.36±10.31)kPa in the slope,flat and concave finite element analysis models,respectively.The equivalent stress was(1 023.86±201.99)kPa in the slope sinuses,comparing with(687.91±69.08)kPa and(698.27±96.09)kPa in the flat and concave sinuses.Higher elevation pressure and the equivalent stress,compressive stress and shear stress values were found in the slope sinus than in the flat and concave sinuses under the same elevation height(P<0.05).Stress distribution analysis revealed that stress was uniformly distributed in the flat sinuses,followed by concave sinuses,but asymmetrically distributed in the slope sinuses.Conclusions The slope sinuses demonstrated inferior safety and efficiency compared with the flat and concave sinuses when performing hydraulic sinus floor elevation surgery.关键词
上颌窦内提升/上颌窦黏膜穿孔/液压提升法/底壁分型/倾斜型/平坦型/凹型/三维有限元分析/生物力学/牙种植术Key words
transcrestal maxillary sinus elevation/sinus membrane perforation/hydraulic sinus floor eleva-tion/sinus contour/slope type/flat type/concave type/three-dimensional finite element analysis/biomechan-ics/dental implant surgery分类
医药卫生引用本文复制引用
林曦,阙国鹰,刘嘉,周震,郑相淮..上颌窦底形态对液压提升手术安全性影响的三维有限元研究[J].口腔疾病防治,2026,34(6):556-564,9.基金项目
广东省援疆农村科技特派员项目(KTPYJ2024015) （KTPYJ2024015）
南方医科大学口腔医院院级科研培育项目(PY2024035) This study was supported by the grants from Guangdong Provincial Science and Technology Commissioner Program for Rural Areas in Xinjiang(No.KTPYJ2024015),Research and Cultivation Project of Stomatological Hospital,Southern Medical University(No.PY2024035). （PY2024035）
