STUDY ON MECHANICAL PROPERTIES OF POROUS SCAFFOLD AND DESIGNING OF MANDIBULAR PROSTHESIS BASED ON SLM FORMING
The tissue engineered bone provides an important method for repairing large segmental bone defects.However,how to design a prosthesis that matches the mechanical properties of host bone remains to be studied.Therefore,this study aimed to explore the scaffold mechanical properties based on selective...
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Editorial Office of Journal of Mechanical Strength
2024-10-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2024.05.017 |
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| author | YAN HanSheng WEI Bo LIU Chris QIU YongLiang |
| author_facet | YAN HanSheng WEI Bo LIU Chris QIU YongLiang |
| author_sort | YAN HanSheng |
| collection | DOAJ |
| description | The tissue engineered bone provides an important method for repairing large segmental bone defects.However,how to design a prosthesis that matches the mechanical properties of host bone remains to be studied.Therefore,this study aimed to explore the scaffold mechanical properties based on selective laser melting(SLM)fonning printing technology for scaffold and apply to mandibular reconstruction.Firstly,hexahedral(HE),octahedral(OC)and body centred cubic(BCC)unit cell porous scaffolds with different porosity(50%-80%)were established,and the porous scaffold mechanical properties were analyzed by finite element analysis.Secondly,the porous Ti6Al4V scaffolds with strong mechanical properties were prepared by SLM forming technology,and the scaffold mechanical properties were evaluated by the compression test.Finally,the least square method was used to fit the scaffold porosity⁃elastic modulus curve,so as to obtain the porous prosthesis with mechanical properties matching the mandibular defect region.The results show that the maximum stress of porous scaffold increases with the increase of porosity and is closely related to the configuration(BCC>OC>HE).The compression test shows that the scaffold elastic modulus with different porosities is significantly different,and the porosity is inversely proportional to the elastic modulus.According to the Gibson⁃Ashby model of hexahedral unit cell scaffold,the ideal prosthesis porosity is 53.1%.Additionally,the safety of the prosthesis is verified by finite element analysis.The finite element analysis and compression test confirmed that the scaffold mechanical properties with different porosities are discrepant,and the optimized prosthesis with appropriate porosity can better match the mechanical properties of host bone,which provides valuable insights for implant design. |
| format | Article |
| id | doaj-art-bb81fb2cedeb4ab5acb96a9832f27197 |
| institution | DOAJ |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2024-10-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-bb81fb2cedeb4ab5acb96a9832f271972025-08-20T03:11:54ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692024-10-01461152115895123397STUDY ON MECHANICAL PROPERTIES OF POROUS SCAFFOLD AND DESIGNING OF MANDIBULAR PROSTHESIS BASED ON SLM FORMINGYAN HanShengWEI BoLIU ChrisQIU YongLiangThe tissue engineered bone provides an important method for repairing large segmental bone defects.However,how to design a prosthesis that matches the mechanical properties of host bone remains to be studied.Therefore,this study aimed to explore the scaffold mechanical properties based on selective laser melting(SLM)fonning printing technology for scaffold and apply to mandibular reconstruction.Firstly,hexahedral(HE),octahedral(OC)and body centred cubic(BCC)unit cell porous scaffolds with different porosity(50%-80%)were established,and the porous scaffold mechanical properties were analyzed by finite element analysis.Secondly,the porous Ti6Al4V scaffolds with strong mechanical properties were prepared by SLM forming technology,and the scaffold mechanical properties were evaluated by the compression test.Finally,the least square method was used to fit the scaffold porosity⁃elastic modulus curve,so as to obtain the porous prosthesis with mechanical properties matching the mandibular defect region.The results show that the maximum stress of porous scaffold increases with the increase of porosity and is closely related to the configuration(BCC>OC>HE).The compression test shows that the scaffold elastic modulus with different porosities is significantly different,and the porosity is inversely proportional to the elastic modulus.According to the Gibson⁃Ashby model of hexahedral unit cell scaffold,the ideal prosthesis porosity is 53.1%.Additionally,the safety of the prosthesis is verified by finite element analysis.The finite element analysis and compression test confirmed that the scaffold mechanical properties with different porosities are discrepant,and the optimized prosthesis with appropriate porosity can better match the mechanical properties of host bone,which provides valuable insights for implant design.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2024.05.017SLMPorous scaffoldElastic modulusPorosityMandibular prosthesis |
| spellingShingle | YAN HanSheng WEI Bo LIU Chris QIU YongLiang STUDY ON MECHANICAL PROPERTIES OF POROUS SCAFFOLD AND DESIGNING OF MANDIBULAR PROSTHESIS BASED ON SLM FORMING Jixie qiangdu SLM Porous scaffold Elastic modulus Porosity Mandibular prosthesis |
| title | STUDY ON MECHANICAL PROPERTIES OF POROUS SCAFFOLD AND DESIGNING OF MANDIBULAR PROSTHESIS BASED ON SLM FORMING |
| title_full | STUDY ON MECHANICAL PROPERTIES OF POROUS SCAFFOLD AND DESIGNING OF MANDIBULAR PROSTHESIS BASED ON SLM FORMING |
| title_fullStr | STUDY ON MECHANICAL PROPERTIES OF POROUS SCAFFOLD AND DESIGNING OF MANDIBULAR PROSTHESIS BASED ON SLM FORMING |
| title_full_unstemmed | STUDY ON MECHANICAL PROPERTIES OF POROUS SCAFFOLD AND DESIGNING OF MANDIBULAR PROSTHESIS BASED ON SLM FORMING |
| title_short | STUDY ON MECHANICAL PROPERTIES OF POROUS SCAFFOLD AND DESIGNING OF MANDIBULAR PROSTHESIS BASED ON SLM FORMING |
| title_sort | study on mechanical properties of porous scaffold and designing of mandibular prosthesis based on slm forming |
| topic | SLM Porous scaffold Elastic modulus Porosity Mandibular prosthesis |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2024.05.017 |
| work_keys_str_mv | AT yanhansheng studyonmechanicalpropertiesofporousscaffoldanddesigningofmandibularprosthesisbasedonslmforming AT weibo studyonmechanicalpropertiesofporousscaffoldanddesigningofmandibularprosthesisbasedonslmforming AT liuchris studyonmechanicalpropertiesofporousscaffoldanddesigningofmandibularprosthesisbasedonslmforming AT qiuyongliang studyonmechanicalpropertiesofporousscaffoldanddesigningofmandibularprosthesisbasedonslmforming |