Browse > Article

Effect of the Number and Location of Implants on the Stress Distribution in Three-unit Fixed Partial Denture: A Three-Dimensional Finite Element Analysis  

Lee, Woo-Hyun (Department of Prosthodontics, College of Dentistry, Dankook University)
Lim, Jong-Hwa (Department of Prosthodontics, College of Dentistry, Dankook University)
Cho, In-Ho (Department of Prosthodontics, College of Dentistry, Dankook University)
Publication Information
Journal of Dental Rehabilitation and Applied Science / v.26, no.3, 2010 , pp. 221-239 More about this Journal
Abstract
Bone loss may occur depending on the loading conditions. careful treatment planning and prosthetic procedures are very important factors for the proper distribution of stress. Evaluate the stress distributions according to numbers and location of implants in three-unit fixed partial dentures. A mandible missing the right second premolar, first molar and second molar was modeled. Using the CT data. we modeled a mandible with a width of 15mm, a height of 20mm and a length of 30mm, 2mm-thickness cortical bone covering cancellous bone mallow. An internal type implant and A solid type abutment was used. A model with 3 implants placed in a straight line, offset 1.5 mm buccally, offset 1.5 mm lingually and another model with 3 implants offset in the opposite way were prepared. And models with 2 implants were both end support models, a mesial cantilever model and a distal cantilever model. Three types of loading was applied; a case where 155 N was applied solely on the second premolar, a case where 206 N was applied solely on the second molar and a case where 155 N was applied on the first premolar and 206 N was applied on the first and second molar. For all the cases, inclined loads of 30 degrees were applied on the buccal cusps and vertical loads were applied on the central fossas of the teeth. Finite element analysis was carried out for each case to find out the stress distribution on bones and implants. This study has shown that prostheses with more implants caused lower stress on bones and implants, no matter what kind of load was applied. Furthermore, it was found out that inclined loads applied on implants had worse effects than vertical loads. Therefore, it is believed that these results should be considered when placing implants in the future.
Keywords
Cantilever; Implant; Offset; Stress;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Bidez MW, Misch CE. Issues in bone mechanics related to oral implants. Implant Dent 1992;1:289-94.   DOI   ScienceOn
2 Naert I, Quirynen M, van Steenberghe D, Darius P. A study of 589 consecutive implants supporting complete fixed prostheses. Part II: Prosthetic aspects, J Prosthet Dent 1992;68:949-56.   DOI   ScienceOn
3 Kivanc A, Haldun I. Evaluation of the effect of the residual bone angulation on implant-supported fixed prosthesis in mandibular posterior edentulism. Part II: 3-D Finite element stress analysis, Implant Dentistry 2001;10:238-45.   DOI   ScienceOn
4 Lindquist LW, Rockler B, Carlsson E. Bone resorption around fixtures in edentulous patients treated with mandibular fixed tissue integrated prostheses. J Prosthet Dent 1988;59:59-63.   DOI   ScienceOn
5 Lum LB, Osier JF. Load transfer from endosteal implants to supporting bone: An analysis using statics. Part two : Axial loading. J Oral Implantol 1995;18:349-53.
6 Roxana S, Takahiro S, Haruka K, Osamu M. Influence of restoration type on stress distribution in bone around implants: A three-dimensional finite element analysis. Int J Oral Maxillofac Implants 1998 ;13:82-90.
7 Cho CH : Program of construction analysis by finite element analysis. Seoul, Chungrim Publishing.co 1989. p20.
8 Robert K, Mark WR. Photoelastic stress patterns produced by implant-retained overdentures. J Prosthet Dent 1998;80:559-64.   DOI   ScienceOn
9 Benzing UR, Gall H, Weber H. Biomechanical aspects of two different implant-prosthetic concepts for edentulous maxillae. Int J Maxillofac Implants 1995;10:188-98.
10 Sullivan D. Prosthetic consideration for the utillization of osseointegrated fixtures in the partially edentulos arch. Int J Oral Maxillofac Implants 1986;1:39-45.
11 Misch CE. Dental implant Prosthetics. St Louis: Mosby; 2005 p184.
12 Osama AH, Ameen K, Najira DO, Mohammed EM. The staggere installation of dental implants and its effect on bone stresses. Clin Implant Dent Rel Res. 2007;9:121-7.   DOI   ScienceOn
13 Kwon YS, Hwang SH, Han DH. Comparison of maximum occlusal forces on osseointegrated implant supported fixed prosthesis and natural teeth. J Korean Acd Prosthodont 2005;43:498-10   과학기술학회마을
14 Mericske-stern R, Assal P, Mericske E, Burgin W. Occlusal force and oral tactile sensibility measured in partially edntulous patients with ITI implants. Int J oral Maxillofacial Implants 1995;10:345-54.
15 Weyant RJ, Burt BA. An assessment of survival rates and within patient clustering of failures for endosseous oral implants. J Dent Res 1993;72:2-8.   DOI   ScienceOn
16 Carter DR, Spengler DM. Mechanical properties and composition of cortical bone. Clin Orthop 1977;127: 265-74.
17 Branemark PI, Hansson BO, Adell R, Breine U, Lindstrom J, Hallen O, Ohman A. Osseointegrated implants in the treatment of the edentulous jaw: Experience from a 10-year period. Scand J Plast Reconstr Surg Suppl. 1977;11(suppl 16)16:1-13.
18 Hoshaw SJ, Brunski JB, Cochran GVB. Mechanical loading of Branemark implants affects interfacial bone modeling and remodeling. Int J Oral Maxillofac Implants 1994;9:345-60.
19 Quirynen M, Naert I, van Steenberghe D. Fixture design and overload influence marginal bone loss and fixture success in the Branemark system. Clin Oral Implants Res 1992;3:104-11.   DOI   ScienceOn
20 English CE. Biomechanical concerns with fixed partial dentures involving implants. Implant Dent 1993;2:221-42.   DOI   ScienceOn
21 Buser D, Belser UC, Lang NP. The original one-stage dental implant system and its clinical application. Periodontology 2000 1998;17:106-18.   DOI   ScienceOn
22 Rangert B, Krogh PHJ, Langer B, Roekel NV. Bending overload and implant fracture: a retrospective clinical analysis. Int J Oral Maxillofac Implants 1986;1:326-34.
23 Becker CM, Kaiser DA. Implant-retained cantilever fixed prosthesis: Where and When. J Prosthet Dent 2000;84:432-35.   DOI   ScienceOn
24 Park JH, Kim SH, Han JS, Yang JH. Effect of number of implants and cantilever design on stress distribution in three unit fixed partial dentures: A three dimensional finite element analysis. J Kor Acd Prosthodont; 2008: Vol. 43. No 3.290-97   과학기술학회마을
25 Kivanc A, Haldun I. Finite element stress analysis of the influence of staggered versus straight placement of dental implants. Int J Oral Maxillofac implants 2001;16:722-30.
26 Laney WR, Jemt T, Harris D, Henry PJ, Krogh PH, Polizzi G, Zarb GA, Herrmann I. Osseointegrated implants for single-tooth replacement: progress report from a multicenter prospective study after 3 years. Int J Oral Maxillofac Implants 1994;9: 49-54.
27 Naert I, Quirynen M, Van Steenberghe D, Darius P. A six-year prosthodontic study of 509 consecutively inserted implants for the treatment of partial edentulism. J Prosthet Dent 1992;67:236-45.   DOI   ScienceOn
28 Payant L, Williams JE, Zwemer JD. Survey of dental implant practice. J Oral Implantol 1994;20:50-58.
29 Lindhe J, Berglundh T, Ericsson I, Liljenberg B, Marinello C. Experimental breakdown of peri-implant and periodontal tissues: A study in the beagle dog. Clin Oral Implants Res 1992;3:9-16.   DOI   ScienceOn
30 Branemark PI. Ossteointegration and its experimental background. J Prosthet Dent 1983;50:399-410.   DOI   ScienceOn
31 Adell R, Lekholm U, Rockler B, Brånemark PI. A 15-year study of osseointegrated implants in the treatment of the edentulous jaw. Int J Oral Surg 1981;10:387-416.   DOI
32 Brunski JB. Biomechanical factors affecting the bonedental implant interface. Clin Mater 1992;10:153-201.   DOI   ScienceOn
33 LeGeros RZ, Craig RG. Strategies to affect bone remodeling: Ossteointegration. J Bone Miner Res 1993;8:583-96.
34 Weyant RJ, Characteristics associated with the loss and peri-implant tissue health of endosseous dental implants. Int J Oral Maxillofac Implants 1994;9:95- 102.
35 Lekholm U. Ossteointegrated implants in the treatment of partially edentulous jaws: A prospective 5-years multicenter study. Int J Oral Maxillofac Implants 1994;6:627-35.
36 Van Steenberghe D. A Retrospective multicenter evaluation of the survival rate of ossteointegrated fixtures of supporting bridges in the treatment of partial edentulism. J Prosthet Dent 1989;61:217-23.   DOI   ScienceOn
37 Buser D, Weber HP, Bragger U, Balsiger C. Tissue integration of one-stage implants: Three year results of a prospective longitudinal study with hollow cylinder and hollow screw implants. Quintessence Int 1994;25:679-86.
38 Holmglen EP, Seckinger RJ, Kilgren LM, Mante F. Evaluation parameter of osseointegrated dental implants using finite element analysis - A two dimensional comparative study examing the effects of implant diameter, implant shape, and load direction. J Oral Implantol 1998;24:80-8.   DOI   ScienceOn
39 Iplikcioglu H, Akca K. comparative evaluation of the effect of diameter, length and number of implants supporting 3-unit fixed partial prosthesis on stress distribution in the bone. J Dent 2002:30:41-6.   DOI   ScienceOn
40 Misch CE. Contemporary implant dentistry. 2nd ed. St.Louis; Mosby; 1999;652-56.
41 Hebel KS, Gajjar RC. Cement retained versus screw retained implant restorations; Achieving optimal occlusion and esthetics in implant dentistry. J Prosthet Dent. 1997;77:28-35.   DOI   ScienceOn
42 Yu SH, Park WH, Park JJ, Lee YS. A study on the various implant systems using the finite element stress analysis. J Korean Acd Prosthodont 2006; Vol.44: No2. 207-16.   과학기술학회마을
43 Lum LB, Osier JF. Load transfer from endosteal implants to supporting bone: An analysis using statics. Part one : Horizontal loading. J Oral Implantol 1992;18:343-48.