Title page for 973203019


[Back to Results | New Search]

Student Number 973203019
Author Ming-Jen Kang(康銘仁)
Author's Email Address 973203019@cc.ncu.edu.tw
Statistics This thesis had been viewed 776 times. Download 0 times.
Department Mechanical Engineering
Year 2009
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title Mathematical Model of Thread Shape and Thread Profile on Insertion Torque of the Bone Screw
Date of Defense 2010-07-04
Page Count 100
Keyword
  • Bone screw
  • Failure
  • Initial stability
  • Insertion torque
  • Mathematical model
  • Abstract In clinical application, although bone screws became the general parts in the orthodontic and orthopaedic domains, the cases of screw failure were emerged in endlessly. When screw fractured or loosened, it would cause surgery fail, secondary operation, and delayed union. Current researches considered that the initial primary stability during inserted process was correlated to insertion torque; the enough torque can provide higher stability. However, some researches also pointed out the excessive insertion torque might cause fracture of implants, bionecrosis of bone tissue, and delayed union. The influence of factors on insertion torque were geometry of screw、strength of bone and the diameter of pilot hole.
      This study improved a mathematical model of the engineering self-tapping screw fastening process in previous research, so that it could be used in dental implants to estimate the influence of difference on thread profile、taper of screw and pilot-hole on insertion torque. The two behaviors of removal and friction in bone was probe by concept of mechanics of materials.To confirm the accuracy of the model, four dental implants were used in this research. Besides, experimental results for torque tester and predictions of the mathematical model were compared. The results appeared high accuracy in thread shape test. However, the results in the taper of screw test showed low accuracy. The author suggested that stress on the surface of thread and coefficient of friction be considered carefully.
      The results of this research provided the influence of geometry of bone screws on insertion torque in the fundamental of mechanics and materials, and assist design engineers in developing new bone screws.
    Table of Content 摘  要i
    Abstractii
    致 謝 文iv
    目  錄v
    圖 目 錄vii
    表 目 錄ix
    符 號 說 明x
    第一章 緒 論1
    1.1研究背景1
    1.1.1 齒科螺絲1
    1.1.2 創傷螺絲4
    1.1.3 脊椎螺絲5
    1.1.4 骨螺絲常見的破壞模式6
    1.2研究目的7
    1.3研究方向9
    1.4研究架構10
    第二章 文獻回顧12
    2.1齒科螺絲在旋入期間的破壞12
    2.2鎖入力矩與初始穩定度之關係13
    2.3工程螺絲旋緊過程之理論模型14
    2.4延性與脆性材料之破壞準則17
    2.4.1攻牙力矩延性材料受平面應力作用之降伏準則17
    2.4.2脆性材料受平面應力作用之破裂準則20
    2.4.3本研究使用之準則21
    第三章 材料與方法23
    3.1 螺絲幾何23
    3.2 鎖入過程理想條件25
    3.3 座標系統27
    3.4 使螺絲前進的軸向力矩28
    3.4.1攻牙力矩29
    3.4.2攻牙力矩推導30
    3.4.3摩擦力矩39
    3.4.4摩擦力矩推導41
    3.5 數學模型之理論預測49
    3.5.1骨螺絲在旋入過程之力學效應49
    3.5.2程式模擬計算50
    3.6 鎖入扭矩實驗50
    3.6.1不同牙形之鎖入力矩比較52
    3.6.2不同預鑽孔與錐度之鎖入力矩比較52
    3.6.3受測螺絲之幾何參數53
    3.6.4受測骨頭之材料參數55
    3.6.5預鑽孔洞程序56
    第四章 研究結果57
    4.1 不同牙形之鎖入力矩57
    4.2 不同預鑽孔與錐度之鎖入力矩60
    第五章 討論與結論65
    5.1 討論65
    5.2 結論73
    參考文獻75
    附錄一79
    附錄二81
    Reference [1]汪君翰,「人工牙根與牙墩之卡榫機構的有限元素應力分析」,國立中央大學,碩士論文,民國98年。
    [2]Taylor, “What is a dental implant In Peppers LG. (eds). Dental implant Are they for me” Iowa Quintessence, pp. 6-7, 1990.
    [3]A.K. Ritto, H.M. Kyung, “Bracket head micio implant for orthodontic anchorage”, Orthod Cyb J, December 2004.
    [4]R. Kanomi, “Mini-implant for orthodontic anchorage”, J Clin Orthod, Vol 31, pp. 763–767, November 1997.
    [5]劉德均,「微植體於矯正錨定應用之生物力學探討」,國立成功大學,碩士論文,民國95年。
    [6]林晉,「遠端股骨鎖定螺絲之應力分析有限元素模型及機械測試」,行政院國家科學委員會輔助專題研究計畫成果報告,國立台灣大學醫學院骨科,民國九十一年十二月。
    [7]徐慶琪,「骨螺絲之結構設計與生物力學分析」,國立台灣科技大學,博士論文,民國94年。
    [8]簡基勝,「雙孔骨側板滑動式髖螺釘治療髖部粗隆間骨折力學失衡因子探討之臨床研究」,國立成功大學,碩士論文,民國93年。
    [9]K. Yokoyama, T. Ichikawa, H. Murakami, Y. Miyamoto, K. Asaoka, “Fracture mechanisms of retrieved titanium screw thread in dental implants”, Biomaterials, Vol 23, pp. 2459–2465, June 2002.
    [10]R.A. Mischkowski, P. Kneuertz, B. Florvaag, F. Lazar, J. Koebke, J.E. Zoller, “Biomechanical comparison of four different miniscrew types for skeletal anchorage in the mandibulo-maxillary area”, Int. J. Oral Maxillofac. Surg, Vol 37, pp. 948-954, October 2008.
    [11]J.W. Kim, S.H. Baek, T.W. Kim, Y.I. Chang, “Comparison of stability between cylindrical and conical type mini-implants”, Angle Orthod, Vol 78, pp. 692-698, July 2008.
    [12]L. Seneviratne, F. Negmoh, S. Earles, and K. Althoefer, “Theoretical modelling of the self-tapping screw fastening process”, Journal of Mechanical Engineering Science, Vol 215, pp. 135-154, 2001.
    [13]J. Sakoh, U. Wahlmann, E. Stender, R. Nat, B. Al-Nawas, W. Wagner, “Primary stability of a conical implant and a hybrid, cylindrical screw-type implant in vitro”, Int J Oral Maxillofac Implants, Vol 21, pp. 560–566, 2006.
    [14]L. Vidyasagar, P. Apse, “Dental Implant Design and Biological Effects on Bone-Implant Interface”, Baltic Dental and Maxillofacial Journal, Vol 6, pp. 51-54, 2004.
    [15]D. O’Sullivan, L. Sennerby, D. Jagger, N. Meredith, “A comparison of two methods of enhancing implant primary stability”. Clin Implant Dent Relat Res, Vol 6, pp. 48-57, 2004
    [16]J.W. Kim, S.J. Ahn, Y.I. Chang, “Histomorphometric and mechanical analyses of the drill-free screw as orthodontic anchorage”, Am J orthod Dentofacial Orthop, Vol 128, pp. 190-194, 2005.
    [17]A. Carano, P. Lonardo, S. Velo, C. Incorvati, “Mechanical properties of three different commercially available miniscrews for skeletal anchorage”, Prog Orthod, Vol 6, pp. 82-97, 2005.
    [18]B. Friberg, L. Sennerby, J. Roos, P. Johansson, C.G. Strid, U. Lekholm, “Evaluation of bone density using cutting resistance measurements and microradiography: an in vitro study in pig ribs”, Clin Oral Implants Res, Vol 6, pp. 164–171, 1995.
    [19]H. Kido, E.E. Schulz, A. Kumar, J. Lozada, S. Saha, “Implant diameter and bonedensity: effect on initial stability and pulloutresistance”, J Oral Implantol, Vol 23, pp. 163-169, 1997;
    [20]J. Sakoh, U. Wahlmann, E. Stender, R. Nat, B. Al-Nawas, W. Wagner, “Primary stability of a conical implant and ahybrid, cylindric screw-type implant in vitro”, Int J Oral Maxillofac Implants, Vol 21, pp. 560–566, 2006.
    [21]D. O’Sullivan, L. Sennerby & N. Meredith, “Measurements comparing the initial stability of five designs of dental implants:a human cadaver study.” Clinical Implant Dentistry and Related Research, Vol 2, pp. 85-92, 2000.
    [22]Turkyilmaz, “Comparison between insertion torque and resonance frequency in the assessment of torque capacity and primary stability of Bra°nemark system implants”, Journal of Oral Rehabilitation, Vol 33, pp. 754–759, January 2006
    [23]B. Wilmes, C. Rademacher, G. Olthoff, D. Drescher, “Parameters affecting primary stability of orthodontic mini-implants”, J Orofac Orthop, Vol 67, pp. 162-174, May 2006.
    [24]H. Martinez, M. Davarpanah, P. Missika, R. Celletti & R. Lazzara, “Optimal implant stabilization in low density bone”, Clinical Oral Implants Research, Vol 12, pp. 423–432, 2001.
    [25]A. Leo, S. Manivanna, and J. Potter, “Mathematical Modeling of the Torque for Screw Insertion Process”, MQP paper at WPI, Worcester, MA, 2006.
    [26]Roy R. Craig, JR., MECHANICS OF MATERIALS.林盈收,林冠丞譯,第一版,材料力學(下冊),吳秀蓁發行,台北市,民國八十八年四月
    [27]Ferdinand P. Beer, E. Russel Johnston, Jr., 朱紹鎔,蘇金佳譯,材料力學,第二版,東華書局股份有限公司發行,麥格羅.希爾國際股份有限公司,2001年1月出版。
    [28]Sawbones 公司產品型錄,2008年,取自http://www.sawbones.com。
    [29]何擇榮、黃立忠、葉泰榮、朱裕華等人,牙科植體暨相關器材指引 系列之二 2005植體系統新增版 Overview of Dental Implant Systems 2005,台北市牙科植體學學會,民國94年。
    [30]Louis T. Kirco, Carl E. Misch, Dental implant prosthetics., Elsevier Mosby, 2005.
    [31]D. O’Sullivan, L. Sennerby, N. Meredith, “Influence of implant taper on the primary and secondary stability of ossesintegrated titanium implants”, Clin Oral Implants Res. Vol 15, pp. 474-480, 2004.
    Advisor
  • Shang-Chih Lin(林上智)
  • Files
  • 973203019.pdf
  • disapprove authorization
    Date of Submission 2010-07-19

    [Back to Results | New Search]


    Browse | Search All Available ETDs

    If you have dissertation-related questions, please contact with the NCU library extension service section.
    Our service phone is (03)422-7151 Ext. 57407,E-mail is also welcomed.