控制记忆合金丝镍钛根管锉弯曲性能有限元分析模型的构建及力学分析

doi:10.19723/j.issn.1671-167X.2019.01.023

Abstract

Abstract:

Objective: To construct a model for a controlled memory (CM) nickel-titanium (NiTi) file and another M-wire NiTi file with the same geometry by using finite element analysis. To evaluate the flexibility of a CM NiTi file by using three dimensional finite element method and to compare its mechanical responses with that M-wire NiTi. Methods: Based on the reverse engineering, the 21 mm long, 25#/08 taper Hyflex NT NiTi file and Hyflex CM NiTi file were fixed by the cantilever bending model at a distance of 9.5 mm from the tip of the file. The mechanical tester’s indenter was loaded/unloaded at a distance of 3 mm from the tip of the file. The maximum displacement was 3 mm, the load displacement curve was obtained. Subsequently, by using a micro-CT to scan (layer spacing of 8 μm) NiTi files, and ABAQUS (6.10) was introduced to construct a geometric model. Hyflex NT was considered as a shape-memory alloy constitutive model, Hyflex CM was considered as a power-hardening plastic constitutive model, respectively. Comparing the load-displacement curve of cantilever bending in the three-dimensional finite element model with the load-displacement curve in the experiment. Results: Two tetrahedral element models were constructed, the total number of nodes was 99 353 and the total number of cells was 63 744. When the loading displacement was 1 mm, the stress distribution of the cross section at 6.1 mm from the tip of the file was observed. The upper and lower surfaces were subjected to the maximum bending stress and entered the phase transformation yield stage. The finite element simulation could clearly show the deformation of the file. Various information such as deformation characteristics and stress distribution in the process were well fitted to the actual experimental curve. Conclusion: The constitutive behavior of the material has a significant effect on the mechanical behavior of NiTi file. The finite element model established for the NiTi file of the CM wire can accurately capture the characteristics of various deformation processes of the NiTi root canal file, and it has a good fit with the actual experimental curve. The finite element model can be used for study on bending properties of CM wire.

Key words: NiTi rotary file, Controlled memory NiTi file, Finite element analysis

CLC Number:

R783.1

Hong-yu FU,Fang-fang WANG,Xiao-mei HOU. Construction and mechanical analysis of finite element model for bending property of controlled memory wire nickel-titanium rotary file[J].Journal of Peking University(Health Sciences), 2019, 51(1): 131-135.

Figures/Tables 7

Figure 1

Table 1

Phase transition temperatures of HyFlex NT and HyFlex CM file (n=5)"

Group	Ms/℃	Mf/℃	As/℃	Af/℃
HyFlex NT, $x ?$ ±s	8.84±1.55	-18.76±4.38	-21.69±0.73	16.84±0.58
HyFlex CM, $x ?$ ±s	31.87±7.26	-35.60±1.22	24.86±0.60	60.27±0.94

Table 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

References 14

[1]	Santos AL, BahiaMG, De ELC ,et al. Comparison of the mecha-nical behavior between controlled memory and superelastic nickel-titanium files via finite element analysis[J]. J Endod, 2013,39(11):1444-1447. doi: 10.1016/j.joen.2013.07.030 pmid: 24139271
[2]	Montalvao D, Alcada FS, Braz FM , et al. Structural characterization and mechanical FE analysis of conventional and M-Wire Ni-Ti alloys used in endodontic rotary instruments[J]. Sci World J, 2014,2014:1-8. doi: 10.1155/2014/976459 pmid: 3918393
[3]	Montalvao D, Alcada FS . Numeric comparison of the static mechanical behavior between ProFile GT and ProFile GT series X rotary nickel-titanium files[J]. J Endod, 2011,37(8):1158-1161. doi: 10.1016/j.joen.2011.05.018 pmid: 21763913
[4]	Auricchio F, Taylor RL . Shape-memory alloys: modelling and numerical simulations of the finite-strain superelastic behavior[J]. Comput Methods Mech Engrg, 1997,143(1):175-194. doi: 10.1016/S0045-7825(96)01147-4
[5]	徐秉业 . 应用弹塑性力学 [M]. 北京: 清华大学出版社, 1995.
[6]	Santos L, López JB, Casas EB , et al. Mechanical behavior of three nickel-titanium rotary files: A comparison of numerical simulation with bending and torsion tests[J]. Mater Sci Eng C Mater Biol Appl, 2014,37(1):258-263. doi: 10.1016/j.msec.2014.01.025 pmid: 24582247
[7]	Hou X, Yahata Y, Hayashi Y . Phase transformation behaviour and bending property of twisted nickel-titanium endodontic instruments[J]. Int Endod J, 2011,44(3):253-258. doi: 10.1111/j.1365-2591.2010.01818.x pmid: 21219356
[8]	Pongione G, Milana V . Flexibility and resistance to cyclic fatigue of endodontic instruments made with different nickel-titanium alloys: a comparative test[J]. Ann Stomatol, 2012,3(3-4):119-122. pmid: 23386933
[9]	Zinelis S, Eliades T, Eliades G . A metallurgical characterization of ten endodontic Ni-Ti instruments: assessing the clinical relevance of shape memory and superelastic properties of Ni-Ti endodontic instruments[J]. Int Endod J, 2010,43(2):125-134. doi: 10.1111/j.1365-2591.2009.01651.x pmid: 20078701
[10]	Yahata Y, Yoneyama T, Hayashi Y , et al. Effect of heat treatment on transformation temperatures and bending properties of nickel-titanium endodontic instruments[J]. Int Endod J, 2010,42(7):621-626. doi: 10.1111/j.1365-2591.2009.01563.x pmid: 19467049
[11]	Alapati SB, Brantley WA, Lijima M , et al. Metallurgical characterization of a new nickel-titanium wire for rotary endodontic instruments[J]. J Endod, 2009,35(11):1589-1593. doi: 10.1016/j.joen.2009.08.004 pmid: 19840654
[12]	Shen Y, Coil JM, Zhou H , et al. HyFlex nickel-titanium rotary instruments after clinical use: metallurgical properties[J]. Int Endod J, 2013,46(8):720-729. doi: 10.1111/iej.12049 pmid: 23330612
[13]	Ninan E, Berzins DW . Torsion and bending properties of shape memory and superelastic nickel-titanium rotary instruments[J]. J Endod, 2013,39(1):101-104. doi: 10.1016/j.joen.2012.08.010 pmid: 23228266
[14]	Shen Y, Qian W, Abtin H , et al. Fatigue testing of controlled memory wire nickel-titanium rotary instruments[J]. J Endod, 2011,37(7):997-1001. doi: 10.1016/j.joen.2011.03.023 pmid: 21689559

Related Articles 10

[1]	Wei ZHOU,Jin-gang AN,Qi-guo RONG,Yi ZHANG. Three-dimensional finite element analysis of traumatic mechanism of mandibular symphyseal fracture combined with bilateral intracapsular condylar fractures [J]. Journal of Peking University (Health Sciences), 2021, 53(5): 983-989.
[2]	Shuang REN,Hui-juan SHI,Jia-hao ZHANG,Zhen-long LIU,Jia-yi SHAO,Jing-xian ZHU,Xiao-qing HU,Hong-shi HUANG,Ying-fang AO. Finite element analysis of the graft stresses after anterior cruciate ligament reconstruction [J]. Journal of Peking University (Health Sciences), 2021, 53(5): 865-870.
[3]	JIANG You-sheng,FENG Lin,GAO Xue-jun. Influence of base materials on stress distribution in endodontically treated maxillary premolars restored with endocrowns [J]. Journal of Peking University (Health Sciences), 2021, 53(4): 764-769.
[4]	Chun-ping LIN,Song-he LU,Jun-xin ZHU,Hong-cheng HU,Zhao-guo YUE,Zhi-hui TANG. Influence of thread shapes of custom-made root-analogue implants on stress distribution of peri-implant bone: A three-dimensional finite element analysis [J]. Journal of Peking University(Health Sciences), 2019, 51(6): 1130-1137.
[5]	Jia-hao ZHANG,Shuang REN,Jia-yi SHAO,Xing-yue NIU,Xiao-qing HU,Ying-fang AO. Anatomical and finite element analysis of anterior cruciate ligament reconstruction within biomechanical insertion [J]. Journal of Peking University(Health Sciences), 2019, 51(3): 586-590.
[6]	. Stress change of periodontal ligament of the anterior teeth at the stage of space closure in lingual appliances: a 3-dimensional finite element analysis [J]. Journal of Peking University(Health Sciences), 2018, 50(1): 141-147.
[7]	ZHAO Xu, ZHANG Lei, SUN Jian, YANG Zhen-yu, XIE Qiu-fei. Three-dimensional finite element analysis of influence of occlusal surface height on stress distribution around posterior implant-supported single crown [J]. Journal of Peking University(Health Sciences), 2016, 48(1): 94-100.
[8]	ZHEN Min, HU Wen-jie, RONG Qi-guo. Finite element analysis of the maxillary central incisor with crown lengthening surgery and post-core restoration in management of crown-root fracture [J]. Journal of Peking University(Health Sciences), 2015, 47(6): 1015-1021.
[9]	ZHOU Tuan-Feng, ZHANG Xiang-Hao, WANG Xin-Zhi. Three-dimensional finite element analysis of one-piece computer aided design and computer aided manufacture involved zirconia post and core [J]. Journal of Peking University(Health Sciences), 2015, 47(1): 78-84.
[10]	YANG Xue, RONG Qi-Guo, YANG Ya-Dong. Influence of attachment type on stress distribution of implant-supported removable partial dentures [J]. Journal of Peking University(Health Sciences), 2015, 47(1): 72-77.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 10

[1]	. [J]. Journal of Peking University(Health Sciences), 2009, 41(4): 456 -458 .
[2]	. [J]. Journal of Peking University(Health Sciences), 2009, 41(2): 158 -161 .
[3]	. [J]. Journal of Peking University(Health Sciences), 2009, 41(2): 217 -220 .
[4]	. [J]. Journal of Peking University(Health Sciences), 2009, 41(1): 52 -55 .
[5]	. [J]. Journal of Peking University(Health Sciences), 2009, 41(1): 109 -111 .
[6]	. [J]. Journal of Peking University(Health Sciences), 2009, 41(3): 297 -301 .
[7]	. [J]. Journal of Peking University(Health Sciences), 2009, 41(5): 516 -520 .
[8]	. [J]. Journal of Peking University(Health Sciences), 2007, 39(3): 304 -309 .
[9]	. [J]. Journal of Peking University(Health Sciences), 2007, 39(3): 310 -314 .
[10]	. [J]. Journal of Peking University(Health Sciences), 2007, 39(3): 315 -318 .

Construction and mechanical analysis of finite element model for bending property of controlled memory wire nickel-titanium rotary file

RICH HTML

PDF (PC)