Numerical analysis of geometric characteristics of mandible fixation plates made of hydroxyapatite structures
Апстракт
Bone defect reparation can be successfully performed with biomaterials based on synthetic hydroxyapatite (HA). In addition to collagen, hydroxyapatite is the basic structure of bone tissue and it is expected to have excellent biocompatibility. This study presents analysis of HA properties, its biocompatibility, and its enhancement due to the reinforcement by biocompatible polymers. This implies the use of bioresorbable poly-L-lactide (PLLA) and bioresorbable HA to produce a unique high porosity composite HA/PLLA with mechanical properties very similar to bones. Using the finite element method, the influence of the mandible fixation plate geometry on the stress distribution is analysed. There are several existing fixation plate models but also a few new-design plates. The mandible model is made with several assumptions. The total effect of occlusal forces is approximated by a 150 N load in mandible muscle. Analysis shows that the best characteristics appear in large surface fixation pla...tes, but the minimum surface plate design with two rows of screws is selected due to the connecting problem in the bone-implant system (naturally uneven).
Кључне речи:
polylactide (PLLA) / numerical analysis / mandible / hydroxyapatite / fixation plates / finite element methodИзвор:
Structural Integrity and Life, 2019, 19, 1, 23-28Издавач:
- Institut za ispitivanje materijala, Beograd
Финансирање / пројекти:
- Интегритет опреме под притиском при истовременом деловању замарајућег оптерећења и температуре (RS-MESTD-Technological Development (TD or TR)-35011)
- Развој савремених метода дијагностике и испитивања машинских структура (RS-MESTD-Technological Development (TD or TR)-35040)
Институција/група
Inovacioni centarTY - JOUR AU - Paunić, Milovan AU - Balać, Igor AU - Sedmak, Aleksandar AU - Čolić, Katarina PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3185 AB - Bone defect reparation can be successfully performed with biomaterials based on synthetic hydroxyapatite (HA). In addition to collagen, hydroxyapatite is the basic structure of bone tissue and it is expected to have excellent biocompatibility. This study presents analysis of HA properties, its biocompatibility, and its enhancement due to the reinforcement by biocompatible polymers. This implies the use of bioresorbable poly-L-lactide (PLLA) and bioresorbable HA to produce a unique high porosity composite HA/PLLA with mechanical properties very similar to bones. Using the finite element method, the influence of the mandible fixation plate geometry on the stress distribution is analysed. There are several existing fixation plate models but also a few new-design plates. The mandible model is made with several assumptions. The total effect of occlusal forces is approximated by a 150 N load in mandible muscle. Analysis shows that the best characteristics appear in large surface fixation plates, but the minimum surface plate design with two rows of screws is selected due to the connecting problem in the bone-implant system (naturally uneven). PB - Institut za ispitivanje materijala, Beograd T2 - Structural Integrity and Life T1 - Numerical analysis of geometric characteristics of mandible fixation plates made of hydroxyapatite structures EP - 28 IS - 1 SP - 23 VL - 19 UR - https://hdl.handle.net/21.15107/rcub_machinery_3185 ER -
@article{ author = "Paunić, Milovan and Balać, Igor and Sedmak, Aleksandar and Čolić, Katarina", year = "2019", abstract = "Bone defect reparation can be successfully performed with biomaterials based on synthetic hydroxyapatite (HA). In addition to collagen, hydroxyapatite is the basic structure of bone tissue and it is expected to have excellent biocompatibility. This study presents analysis of HA properties, its biocompatibility, and its enhancement due to the reinforcement by biocompatible polymers. This implies the use of bioresorbable poly-L-lactide (PLLA) and bioresorbable HA to produce a unique high porosity composite HA/PLLA with mechanical properties very similar to bones. Using the finite element method, the influence of the mandible fixation plate geometry on the stress distribution is analysed. There are several existing fixation plate models but also a few new-design plates. The mandible model is made with several assumptions. The total effect of occlusal forces is approximated by a 150 N load in mandible muscle. Analysis shows that the best characteristics appear in large surface fixation plates, but the minimum surface plate design with two rows of screws is selected due to the connecting problem in the bone-implant system (naturally uneven).", publisher = "Institut za ispitivanje materijala, Beograd", journal = "Structural Integrity and Life", title = "Numerical analysis of geometric characteristics of mandible fixation plates made of hydroxyapatite structures", pages = "28-23", number = "1", volume = "19", url = "https://hdl.handle.net/21.15107/rcub_machinery_3185" }
Paunić, M., Balać, I., Sedmak, A.,& Čolić, K.. (2019). Numerical analysis of geometric characteristics of mandible fixation plates made of hydroxyapatite structures. in Structural Integrity and Life Institut za ispitivanje materijala, Beograd., 19(1), 23-28. https://hdl.handle.net/21.15107/rcub_machinery_3185
Paunić M, Balać I, Sedmak A, Čolić K. Numerical analysis of geometric characteristics of mandible fixation plates made of hydroxyapatite structures. in Structural Integrity and Life. 2019;19(1):23-28. https://hdl.handle.net/21.15107/rcub_machinery_3185 .
Paunić, Milovan, Balać, Igor, Sedmak, Aleksandar, Čolić, Katarina, "Numerical analysis of geometric characteristics of mandible fixation plates made of hydroxyapatite structures" in Structural Integrity and Life, 19, no. 1 (2019):23-28, https://hdl.handle.net/21.15107/rcub_machinery_3185 .