摘要
目的使用集成化编程软件对3D打印氧化锆桩表面进行图案化微结构处理,研究图案化微结构处理对氧化锆桩粘接性能及弯曲强度的影响。方法以3号3M纤维桩为模型,使用编程软件HyperMill 2021由桩顶延伸至桩底,在桩表面设计直线型排溢沟,共设计5组图案化微结构处理氧化锆桩,另设3号3M纤维桩为对照组。然后进行微推出试验和三点弯曲试验,测量不同图案化微结构处理氧化锆桩的粘接强度和弯曲强度;体视显微镜分析粘接失效模式。结果图案化微结构处理显著增加了氧化锆桩的粘接强度(P<0.05),根颈部、根中部及根尖部的粘接强度范围分别为9.80 MPa±0.64 MPa~26.49 MPa±0.94 MPa,9.26 MPa±1.08 MPa~18.51 MPa±0.93 MPa,6.74 MPa±0.31 MPa~13.00 MPa±0.71 MPa。图案化微结构处理降低了氧化锆桩的弯曲强度(P<0.05),弯曲强度范围为378.3 MPa±24.18 MPa~587.4 MPa±36.60 MPa。图案化微结构处理的氧化锆桩粘接失效模式以混合失效为主。结论应用3D打印技术可制备出具有良好弯曲强度和粘接性能的表面图案化氧化锆桩,可满足临床对于个性化桩核设计的需求。
Objective This study aims to design surface patterns using integrated programming software on zirconia posts fabricated through 3D printing.Methods A type 33M fiber post was built as a research model,and HyperMill 2021 software was applied to design linear overflow grooves extending from the apex to the base on the post surface.The design parameters included the number,depth,and width of the overflow grooves.Five groups of patterned microstructured zirconia posts were designed,with the 3M fiber post as the control group.Micro-push-out and three-point bending tests were used to measure the bonding and flexural strengths of the patterned microstructured zirconia posts.The failure mode of bonding was analyzed by using a stereomicroscope.Results The patterned microstructure significantly increased the bond strength of zirconia posts(P<0.05).Bonding strength ranged from 9.80 MPa±0.64 MPa to 26.49 MPa±0.94 MPa at the base of the root,from 9.26 MPa±1.08 MPa to 18.51 MPa±0.93 MPa at the center of the root,and from 6.74 MPa±0.31 MPa to 13.00 MPa±0.71 MPa at the apex of the root.The implementation of patterned microstructures reduced the flexural strength of the zirconia post(P<0.05),and flexural strength ranged from 378.3 MPa±24.18 MPa to 587.4 MPa±36.60 MPa.The failure mode of zirconia post adhesions treated with patterned microstructures was mainly mixed failure.Conclusion Patterned microstructured zirconia posts with improved flexural strength and adhesive properties could be produced by using 3D printing.The bonding and flexural strengths of the patterned zirconia posts can meet the clinical requirements for custom post-and-core design.
作者
江琦
尹路
Jiang Qi;Yin Lu(Affiliated Stomatological Hospital of Xiamen Medical University,Xiamen Key Laboratory of Oral Disease Diagnosis and Treatment,Xiamen 361003,China;Jinshan Second Community Healthcare Center of Cangshan District(Jinshan Second Branch of Cangshan District General Hospital),Fuzhou 350007,China;Xiamen Medical University,Xiamen 361023,China;Oral Biomaterials Engineering Research Center of Fujian University,Xiamen Medical University,Xiamen 361023,China)
出处
《华西口腔医学杂志》
北大核心
2026年第1期106-112,共7页
West China Journal of Stomatology
基金
福建省医学创新课题(2022CXB022)
厦门市科技计划项目(3502Z20224035)。
关键词
3D打印
氧化锆桩
图案化处理
粘接强度
弯曲强度
3D printing
zirconia post
patterned treatment
bonding strength
flexural strength
