双约束分体式正畸微螺钉导板的数字化设计与制作方法

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[关键词] 计算机辅助设计；手术定位导板；微螺钉种植体；3D打印[中图分类号] R783.5 [文献标志码] A [doi] 10.7518/hxkq.2025.2024403

[Abstract]This study exploredanoveldigital designand fabricationmethod foradoubleconstrained splitorthodonticminiscrewguide to improve theaccuracyandsafetyofclinical miniscrewimplantationandreducerelated complications.Apatient requiring miniscrew implantation was selected，anddata were acquired usingcone beam computed tomography（CBCT）and intraoral optical scanning.For theconstructionofadoubleconstrained splitguide includinga screw-hole guide and an insertion rod guide，different types of software such as Mimics 24.0，Geomagic wrap 2021，and Materialise magics 21.0 were utilized for 3D reconstruction，model integration，and guide design. The guidewasthenfabricatedvialasermetal3Dprinting.Modelandintraoraltry-inresultsdemonstratedthattheguidefitted wellndwasstable.PostoperativeCBCTverifiedthatthefinalminiscrewimplantationsitewasconsistentwith the preoperativedesign，andno related complicationsoccured.This double constrained splitorthodontic miniscrew guide provides a precise and safe digital solution for clinical miniscrew implantation.

[Key words]computer aided design；surgical positioning guide；miniscrew implant；3D printing

相比传统正畸支抗，正畸微螺钉种植体具有体积小巧、使用方便灵活等优点，并能为正畸治疗提供绝对支抗，在临床中受到广泛应用。（剩余11651字）