Stress-strain distribution at bone-implant interface of two splinted overdenture systems using 3D finite element analysis
1
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
PURPOSE. This study was accomplished to assess the biomechanical state of different retaining methods of bar implant-overdenture. MATERIALS AND METHODS. Two 3D finite element models were designed. The first model included implant overdenture retained by Hader-clip attachment, while the second model included two extracoronal resilient attachment (ERA) studs added distally to Hader splint bar. A non-linear frictional contact type was assumed between overdentures and mucosa to represent sliding and rotational movements among different attachment components. A 200 N was applied at the molar region unilaterally and perpendicular to the occlusal plane. Additionally, the mandible was restrained at their ramus ends. The maximum equivalent stress and strain (von Mises) were recorded and analyzed at the bone-implant interface level. RESULTS. The values of von Mises stress and strain of the first model at bone-implant interface were higher than their counterparts of the second model. Stress concentration and high value of strain were recognized surrounding implant of the unloaded side in both models. CONCLUSION. There were different patterns of stress-strain distribution at boneimplant interface between the studied attachment designs. Hader bar-clip attachment showed better biomechanical behavior than adding ERA studs distal to hader bar.
Abstract
PURPOSE. This study was accomplished to assess the biomechanical state of different retaining methods of bar implant-overdenture. MATERIALS AND METHODS. Two 3D finite element models were designed. The first model included implant overdenture retained by Hader-clip attachment, while the second model included two extracoronal resilient attachment (ERA) studs added distally to Hader splint bar. A non-linear frictional contact type was assumed between overdentures and mucosa to represent sliding and rotational movements among different attachment components. A 200 N was applied at the molar region unilaterally and perpendicular to the occlusal plane. Additionally, the mandible was restrained at their ramus ends. The maximum equivalent stress and strain (von Mises) were recorded and analyzed at the bone-implant interface level. RESULTS. The values of von Mises stress and strain of the first model at bone-implant interface were higher than their counterparts of the second model. Stress concentration and high value of strain were recognized surrounding implant of the unloaded side in both models. CONCLUSION. There were different patterns of stress-strain distribution at boneimplant interface between the studied attachment designs. Hader bar-clip attachment showed better biomechanical behavior than adding ERA studs distal to hader bar.
참고문헌 (38)
- Misch CE, "Dental implant prosthetics", pp.204~234 (2005), Mosby
- DeBoer J, "Edentulous implants: overdenture versus fixed", J Prosthet Dent, 69, pp.386~390 (1993)
- Sadowsky SJ, "Effect of anchorage systems and extension base contact on load transfer with mandibular implant-retained overdentures", J Prosthet Dent, 84, pp.327~334 (2000)
- Cekiç C, "Effects of attachment design on strains around implants supporting overdentures", Quintessence Int, 38, pp.291~297 (2007)
- Celik G, "Photoelastic stress analysis of various retention mechanisms on 3-implant-retained mandibular overdentures", J Prosthet Dent, 97, pp.229~235 (2007)
- Fanuscu MI, "Influence of attachment systems on load transfer of an implant-assisted maxillary overdenture", J Prosthodont, 13, pp.214~220 (2004)
- Wang HY, "Effects of rigid and nonrigid extracoronal attachments on supporting tissues in extension base partial removable dental prostheses: a nonlinear finite element study", J Prosthet Dent, 105, pp.338~346 (2011)
- Brewer AA, "Overdentures" (1980), CV Mosby Co
- Tabata LF, "Comparison of single-standing or connected implants on stress distribution in bone of mandibular overdentures: a two-dimensional finite element analysis", J Craniofac Surg, 21, pp.696~702 (2010)
- Menicucci G, "Mandibular implant-retained overdenture: finite element analysis of two anchorage systems", Int J Oral Maxillofac Implants, 13, pp.369~376 (1998)
- Chun HJ, "Stress distributions in maxillary bone surrounding overdenture implants with different overdenture attachments", J Oral Rehabil, 32, pp.193~205 (2005)
- Mericske-Stern R, "Force distribution on implants supporting overdentures: the effect of distal bar extensions. A 3-D in vivo study", Clin Oral Implants Res, 8, pp.142~151 (1997)
- Tokuhisa M, "In vitro study of a mandibular implant overdenture retained with ball, magnet, or bar attachments: comparison of load transfer and denture stability", Int J Prosthodont, 16, pp.128~134 (2003)
- Mariano LOH, "Stresses in implant-supported overdentures with bone resorption: A 3-D finite element analysis", Rev Odonto Cienc, 27, pp.41~46 (2012)
- Ochiai KT, "Photoelastic analysis of the effect of palatal support on various implant-supported overdenture designs", J Prosthet Dent, 91, pp.421~427 (2004)
- Assunção WG, "Threedimensional finite element analysis of vertical and angular misfit in implant-supported fixed prostheses", Int J Oral Maxillofac Implants, 26, pp.788~796 (2011)
- van Staden RC, "Application of the finite element method in dental implant research", Comput Methods Biomech Biomed Engin, 9, pp.257~270 (2006)
- Savadi RC, "Influence of Implant Surface Topography and Loading Condition on Stress Distribution in Bone Around Implants: A Comparative 3D FEA", J Indian Prosthodont Soc, 11, pp.221~231 (2011)
- Prakash V, "A comparison of stress distribution and flexion among various designs of bar attachments for implant overdentures: a three dimensional finite element analysis", Indian J Dent Res, 20, pp.31~36 (2009)
- Tanino F, "Finite element analysis of stress-breaking attachments on maxillary implantretained overdentures", Int J Prosthodont, 20, pp.193~198 (2007)
- Bendjaballah MZ, "The effect of non-contact conditions in a splinted fixed partial denture on the load sharing mechanism:a finite element study", J Bionic Eng, 9, pp.336~342 (2012)
- Barão VA, "Finite element analysis to compare complete denture and implant-retained overdentures with different attachment systems", J Craniofac Surg, 20, pp.1066~1071 (2009)
- Vafaei F, "Comparative stress distribution of implant-retained mandibular ball-supported and barsupported overlay dentures: a finite element analysis", J Oral Implantol, 37, pp.421~429 (2011)
- Federick DR, "Effects of overdenture retention designs and implant orientations on load transfer characteristics", J Prosthet Dent, 76, pp.624~632 (1996)
- Daas M, "A complete finite element model of a mandibular implant-retained overdenture with two implants: comparison between rigid and resilient attachment configurations", Med Eng Phys, 30, pp.218~225 (2008)
- Liu J, "Influence of implant number on the biomechanical behaviour of mandibular implant-retained", supported overdentures: a three-dimensional finite element analysis, 2013, pp.41, 241~249
- Osman RB, "Finite element analysis of a novel implant distribution to support maxillary overdentures", Int J Oral Maxillofac Implants, 28, pp.1~10 (2013)
- Misch CE, "Contemporary Implant Dentistry", pp.293~314 (2008), Mosby
- Chen IC, "Freedom of rotation of selected overdenture attachments: an in vitro study", J Prosthet Dent, 106, pp.78~86 (2011)
- el-Sheikh AM, "Force transmission in bar-retained implant-stabilised mandibular over-dentures: an in-vitro study", Eur J Prosthodont Restor Dent, 10, pp.173~178 (2002)
- Bergendal T, "Implant-supported overdentures: a longitudinal prospective study", Int J Oral Maxillofac Implants, 13, pp.253~262 (1998)
- Ueda T, "Long-term results of mandibular implants supporting an overdenture:implant survival, failures, and crestal bone level changes", Int J Oral Maxillofac Implants, 26, pp.365~372 (2011)
- Rismanchian M, "Sadr-Eshkevari P. Implant-retained mandibular bar-supported overlay dentures: a finite element stress analysis of four different bar heights", J Oral Implantol, 38, pp.133~139 (2012)
- Preiskel HW, "Precision attachments in prosthodontics: The applications of intracoronal and extracoronal attachments" (1984), Quintessence Pub. Co
- Takayama Y, "The dynamic behaviour of a lower complete denture during unilateral loads: analysis using the finite element method", J Oral Rehabil, 28, pp.1064~1074 (2001)
- Davidovits P, "Physics in biology and medicine" (2007), Academic Press
- Rismanchian M, "Implant-retained mandibular bar-supported overlay dentures: a finite element stress analysis of four different bar heights", J Oral Implantol, 38, pp.133~139 (2012)
- Merdji A, "Stress distribution in dental prosthesis under an occlusal combined dynamic loading", Mater Des, 36, pp.705~713 (2012)