网格简化对口腔种植机器人手术规划与操作中模型精度的影响

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中图分类号R783.3 TP391.73 文献标识码A 文章编号2096-7721（2026）01-0070-05

AbstractObjective：Toevaluatetheefetofmeshsimplifcationontheaccuracyofdigitalmodelsindentalimplantrobotssisted surgicalplanning andoperation.Methods：Ten maxillary dentate plaster modelsandten maxillay edentulous plaster models were scanedusinganintraoralscannerandsavedasstereolithography（STL）filestoserveasreferencemodels（RO）.Theoriginalodels underwent mesh simplification using Geomagic software，reducing the mesh count to 75% ， 50% ， 25% ，and 10% of the original file respectively.eubrfagularcetstisndeflachmpiddeleompaeddehdsial （3D）root meansquare（MS）deviationbetween these modelsandthereferencemodelwascalculated.Results：The numberof riangular facetsandtheSTLfilesizewerenegativelycorelatedwiththedegreeofmeshsimplification.Astheeshcountdeceased，the3D deviation gradually increased.When mesh simplification did not exceed 50% ，the median deviation for both maxillary dentulous and edentulous models was less than 0.0o5 mm. At 75% simplification，the median deviation for maxillary dentulous models was 0.0097 （0.0067，0.0126） mm and for maxillary edentulous models，0.0059 （0.0026，0.0061） mm.At 90% simplification，the median deviation roseto0.2264（.2060，0.2934）mmformaxillrydentulous modelsand0.019（0.0962，0.1302）mmformaxilaryedentlousmodels.Conclusion： Mesh simplification hasagreater impact onthe truenessofmaxillrydentate modelscompared to edentulous models， particularlyevidentinstructurallyomplexaeassuchasspsandfisss/pits.Teaccracofdentatemodelsisoresesitivetoesh simplification.When the degree of mesh simplification exceeds 75% ，the model's morphological trueness decreases significantly，which may further affectthe registration accuracy of the implant robot.

KeyWordsMesh Simplification; Trueness; 3DDeviation; ImplantRobot

在近十年间，数字化技术在口腔修复领域取得了蓬勃的发展[1-2]。（剩余9373字）