- Volume 33 Issue 3
DOI QR Code
Stress distribution of implants with external and internal connection design: a 3-D finite element analysis
내측 연결 및 외측 연결 방식으로 설계된 임플란트의 3차원적 유한요소 응력 분석
- Chung, Hyunju (Department of Periodontology, School of Dentistry, Chonnam National University) ;
- Yang, Sung-Pyo (Department of Bio and Brain Engineering, KAIST) ;
- Park, Jae-Ho (Department of Prosthodontics, School of Dentistry, Chonnam National University) ;
- Park, Chan (Department of Prosthodontics, School of Dentistry, Chonnam National University) ;
- Shin, Jin-Ho (Department of Prosthodontics, School of Dentistry, Chonnam National University) ;
- Yang, Hongso (Department of Prosthodontics, School of Dentistry, Chonnam National University)
- 정현주 (전남대학교 치과대학 치주과) ;
- 양성표 (카이스트 생체 및 뇌공학과) ;
- 박재호 (전남대학교 치과대학 보철과) ;
- 박찬 (전남대학교 치과대학 보철과) ;
- 신진호 (전남대학교 치과대학 보철과) ;
- 양홍서 (전남대학교 치과대학 보철과)
- Received : 2017.08.08
- Accepted : 2017.09.01
- Published : 2017.09.30
Purpose: This study aims to analyze the stress distribution of mandibular molar restoration supported by the implants with external hex and internal taper abutment connection design. Materials and Methods: Models of external connection (EXHEX) and internal connection (INCON) implants, corresponding abutment/crowns, and screws were developed. Supporting edentulous mandibular bony structures were designed. All the components were assembled and a finite element analysis was performed to predict the magnitude and pattern of stresses generated by occlusal loading. A total of 120 N static force was applied both by axial (L1) and oblique (L2) direction. Results: Peak von Mises stresses produced in the implants by L2 load produced 6 - 15 times greater than those by L1 load. The INCON model showed 2.2 times greater total amount of crown cusp deflection than the EXHEX model. Fastening screw in EXHEX model and upside margin of implant fixture in INCON model generated the peak von Mises stresses by oblique occlusal force. EXHEX model and INCON model showed the similar opening gap between abutment and fixture, but intimate sealing inside the contact interface was maintained in INCON model. Conclusion: Oblique force produced grater magnitudes of deflection and stress than those by axial force. The maximum stress area at the implant was different between the INCON and EXHEX models.
- Eckert SE, Meraw SJ, Cal E, Ow RK. Analysis of incidence and associated factors with fractured implants: a retrospective study. Int J Oral Maxillofac Implants 2000;15:662-7.
- Sanchez-Perez A, Moya-Villaescusa MJ, Jornet-Garcia A, Gomez S. Etiology, risk factors and management of implant fractures. Med Oral Patol Oral Cir Bucal 2010;15:e504-8.
- Eckert SE, Choi YG, Sanchez AR, Koka S. Complication of dental implant systems: quality of clinical evidence and prediction of 5-year survival. Int J Oral Maxillofac Implants 2005;20:406-15.
- Norton MR. An in vitro evaluation of the strength of a 1-piece and 2- piece conical abutment joint in implant design. Clin Oral Implants Res 2000:11:458-64. https://doi.org/10.1034/j.1600-0501.2000.011005458.x
- Binon PP. Implants and components: entering the new millennium. Int J Oral Maxillofac Implants 2000;15:76-95.
- Khraisat A, Stegaroiu R, Nomura S, Miyakawa O. Fatigue resistance of two implant/abutment joint designs. J Prosthet Dent 2002;88:604-10. https://doi.org/10.1067/mpr.2002.129384
- Cehreli MC, Akca K, Iplikcio lu H, Sahin S. Dynamic fatigue resistance of implant-abutment junction in an internally notched morse-taper oral implant: influence of abutment design. Clin Oral Implants Res 2004;15:459-65. https://doi.org/10.1111/j.1600-0501.2004.01023.x
- Dittmer S, Dittmer MP, Kohorst P, Jendras M, Borchers L, Stiesch M. Effect of implant-abutment connection design on load bearing capacity and failure mode of implants. J Prosthodont 2011;20:510-6. https://doi.org/10.1111/j.1532-849X.2011.00758.x
- Boggan RS, Strong JT, Misch CE, Bidez MW. Influence of hex geometry and prosthetic table width on static and fatigue strength of dental implants. J Prosthet Dent 1999;82:436-40. https://doi.org/10.1016/S0022-3913(99)70030-2
- Steinebrunner L, Wolfart S, Ludwig K, Kern M. Implant-abutment interface design affects fatigue and fracture strength of implants. Clin Oral Implants Res 2008;19:1276-84. https://doi.org/10.1111/j.1600-0501.2008.01581.x
- Conrad HJ, Schulte JK, Vallee MC. Fractures related to occlusal overload with single posterior implants: a clinical report. J Prosthet Dent 2008;99:251-6. https://doi.org/10.1016/S0022-3913(08)00041-3
- Goodacre CJ, Bernal G, Rungcharassaeng K, Kan JY. Clinical complications with implants and implant prostheses. J Prosthet Dent 2003;90:121-32. https://doi.org/10.1016/S0022-3913(03)00212-9
- McDermott NE, Chuang SK, Woo VV, Dodson TB. Complications of dental implants: identification, frequency, and associated risk factors. Int J Oral Maxillofac Implants 2003;18:848-55.
- Mollersten L, Lockowandt P, Linden L. Comparison of strength and failure mode of seven implant systems: an in vitro test. J Prosthet Dent 1997;78:582-91. https://doi.org/10.1016/S0022-3913(97)70009-X
- Djebbar N, Serier B, Bouiadjra BB, Benbarek S, Drai A. Analysis of the effect of load direction on the stress distribution in dental implant. Mater Des 2010;31:2097-101. https://doi.org/10.1016/j.matdes.2009.10.042
- Sevimay M, Turhan F, Kilicarslan MA, Eskitascioglu G. Three-dimensional finite element analysis of the effect of different bone quality on stress distribution in an implant-supported crown. J Prosthet Dent 2005;93:227-34. https://doi.org/10.1016/j.prosdent.2004.12.019
- Iplikcio lu H, Akca K. Comparative evaluation of the effect of diameter, length and number of implant supporting three-unit fixed partial prosthesis on stress distribution in the bone. J Dent 2002;30:41-6. https://doi.org/10.1016/S0300-5712(01)00057-4
- Jorn D, Kohorst P, Besdo S, Rucker M, Stiesch M, Borchers L. Influence of lubricant on screw preload and stresses in a finite model for a dental implant. J Prosthet Dent 2014;112:340-8. https://doi.org/10.1016/j.prosdent.2013.10.016
- Eskitascioglu G, Usumez A, Sevimay M, Soykan E, Unsal E. The influence of occlusal loading location on stresses transferred to implant-supported prostheses and supporting bone: a three-dimensional finite element study. J Prosthet Dent 2004;91:144-50. https://doi.org/10.1016/j.prosdent.2003.10.018
- Freitas-Junior AC, Rochac EP, Bonfante EA, Almeida EO, Anchieta RB, Martini AP, Assuncao WG, Silva NR, Coelho PG. Biomechanical evaluation of internal and external hexagon platform switched implant-abutment connections: an in vitro laboratory and three-dimensional finite element analysis. Dent Mater 2012;28:e218-28. https://doi.org/10.1016/j.dental.2012.05.004
- Choi AH, Matinlinna JP, Ben-Nissan B. Finite element stress analysis of Ti-6Al-4V and partially stabilized zirconia dental implant during clenching. Acta Odontol Scand 2012;70:353-61. https://doi.org/10.3109/00016357.2011.600723
- Ma L, Guess PC, Zhang Y. Load-bearing properties of minimal-invasive monolithic lithium disilicate and zirconia occlusal onlays: finite element and theoretical analyses. Dent Mater 2013;29:742-51. https://doi.org/10.1016/j.dental.2013.04.004
- Pessoa RS, Muraru L, Marcantonio Junior E, Vaz LG, Sloten JV, Duyck J, Jaecques SV. Influence of implant connection type on the biomechanical environment of immediately placed implants - CTbased nonlinear, three-dimensional finite element analysis. Clin Implant Dent Relat Res 2010;12:219-34.
- Tang CB, Liu SY, Zhou GX, Yu JH, Zhang GD, Bao YD, Wang QJ. Nonlinear finite element analysis of three implant-abutment interface designs. Int J Oral Sci 2012;4:101-8. https://doi.org/10.1038/ijos.2012.35
- Yamanishi Y, Yamaguchi S, Imazato S, Nakano T, Yatani H. Influences of implant neck design and implant-abutment joint type on peri-implant bone stress and abutment micromovement: three-dimensional finite element analysis. Dent Mater 2012;28:1126-33. https://doi.org/10.1016/j.dental.2012.07.160
- Tsouknidas A, Lympoudi E, Michalakis K, Giannopoulos D, Michailidis N, Pissiotis A, Fytanidas D, Kugiumtzis D. Influence of alveolar bone loss and different alloys on the biomechanical behavior of internal- and external-connection implants: a threedimensional finite element analysis. Int J Oral Maxillofac Implants 2015:30:e30-42. https://doi.org/10.11607/jomi.3814
- Ausiello P, Franciosa P, Martorelli M, Watts DC. Numerical fatigue 3D-FE modeling of indirect composite-restored posterior teeth. Dent Mater 2011;27:423-30. https://doi.org/10.1016/j.dental.2010.12.001
- Farah JW, Craig RG, Meroueh KA. Finite element analysis of three and four unit bridges. J Oral Rehabil 1989;16:603-11. https://doi.org/10.1111/j.1365-2842.1989.tb01384.x
- Schindler HJ, Stengel E, Spiess WE. Feedback control during mastication of solid food textures-a clinical-experimental study. J Prosthet Dent 1998;80:330-6. https://doi.org/10.1016/S0022-3913(98)70134-9
- Richter EJ. In vivo vertical forces on implants. Int J Oral Maxillofac Implants 1995;10:99-108.
- Rangert B, Jemt T, Jorneus L. Forces and moments on Branemark implants. Int J Oral Maxillofac Implants 1989;4:241-7.
- Steinebrunner L, Wolfart S, Bossmann K, Kern M. In vitro evaluation of bacterial leakage along the implant-abutment interface of different implant systems. Int J Oral Maxillofac Implants 2005;20:875-81.
- Nascimento C, Barbosa RE, Issa JP, Watanabe E, Ito IY, Albuquerque RF Jr. Bacterial leakage along the implant-abutment interface of premachined or cast components. Int J Oral Maxillofac Surg 2008;37:177-80. https://doi.org/10.1016/j.ijom.2007.07.026
- Hermann JS, Schoolfield JD, Schenk RK, Buser D, Cochran DL. Influence of the size of the microgap on crestal bone change around titanium implants. A histometric evaluation of unloaded non-submerged implants in the canine mandible. J Periodontol 2001;72:1372-83. https://doi.org/10.1902/jop.2001.72.10.1372