임플란트 고정성 보철물에서 수와 식립위치 변화에 따른 골과 임플란트에서의 응력분포에 관한 3차원 유한요소법적 연구
Effect of the Number and Location of Implants on the Stress Distribution in Three-unit Fixed Partial Denture: A Three-Dimensional Finite Element Analysis
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
본 연구에서는 임플란트 지지 3-unit 고정성 보철물에서 임플란트의 수와 위치변화에 따른 지지골과 임플란트에서의 응력 분포를 삼차원 유한요소분석법으로 관찰하고자 하였다. 3개의 임플란트를 중심선 일직선상에 나란히 식립한 모델과 중심선에서 제1대구치 임플란트를 협측으로 1.5mm offset 시키고 나머지 임플란트는 설측으로 1.5mm offset 시킨 모델 및 이와 반대로 offset 시킨 모델 그리고 2개의 임플란트를 이용하여 양단 지지한 모델과 근심 및 원심 캔틸레버 모델을 만들고, 교합력도 제2소구치에만 155N을 작용한 경우, 제2대구치에만 206N을 작용한 경우, 제1소구치에는 155N, 제1, 2대구치에는 각각 206N을 동시에 적용한 경우에 대해 각각 협측 교두에 설측방향으로 30o 경사하중을 적용시켰을 때와 치아 중심와에 수직하중을 적용했을 때에 대해 유한요소법을 이용하여 골과 임플란트에 발생하는 응력 분포를 관찰하였다. 이 같은 실험 결과를 바탕으로 각각의 응력을 비교하여 다음과 같은 결과를 얻었다. 어떤 하중이 작용하더라도 더 많은 수의 임플란트를 이용하여 제작한 수복물이 골과 임플란트 자체에 작은 응력이 발생하였으며, 3개 구치 상실의 경우에 2개의 임플란트로 지지할때는 양단지지 수복물이 유리한 결과를 나타내었고, 중심와 수직하중이 아니고 협측경사 하중일 때는 협측으로 offset 한 것이 가장 좋은 결과를 나타내었다.
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.
참고문헌 (43)
- Lekholm U, "Ossteointegrated implants in the treatment of partially edentulous jaws: A prospective 5-years multicenter study", Int J Oral Maxillofac Implants, 6, pp.627~635 (1994)
- 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, 61, pp.217~223 (1989)
- Buser D, "Tissue integration of one-stage implants: Three year results of a prospective longitudinal study with hollow cylinder and hollow screw implants", Quintessence Int, 25, pp.679~686 (1994)
- Laney WR, "Osseointegrated implants for single-tooth replacement: progress report from a multicenter prospective study after 3 years", Int J Oral Maxillofac Implants, 9, pp.49~54 (1994)
- Naert I, "A six-year prosthodontic study of 509 consecutively inserted implants for the treatment of partial edentulism", J Prosthet Dent, 67, pp.236~245 (1992)
- Lindquist LW, "Bone resorption around fixtures in edentulous patients treated with mandibular fixed tissue integrated prostheses", J Prosthet Dent, 59, pp.59~63 (1988)
- Payant L, "Survey of dental implant practice", J Oral Implantol, 20, pp.50~58 (1994)
- Lindhe J, "Experimental breakdown of peri-implant and periodontal tissues: A study in the beagle dog", Clin Oral Implants Res, 3, pp.9~16 (1992)
- Brånemark PI, "Ossteointegration and its experimental background", J Prosthet Dent, 50, pp.399~410 (1983)
- Adell R, "A 15-year study of osseointegrated implants in the treatment of the edentulous jaw", Int J Oral Surg, 10, pp.387~416 (1981)
- Brunski JB, "Biomechanical factors affecting the bonedental implant interface", Clin Mater, 10, pp.153~201 (1992)
- Bidez MW, "Issues in bone mechanics related to oral implants", Implant Dent, 1, pp.289~294 (1992)
- LeGeros RZ, "Strategies to affect bone remodeling: Ossteointegration", J Bone Miner Res, 8, pp.583~596 (1993)
- Weyant RJ, "Characteristics associated with the loss and peri-implant tissue health of endosseous dental implants", Int J Oral Maxillofac Implants, 9, pp.95~102 (1994)
- Weyant RJ, "An assessment of survival rates and within patient clustering of failures for endosseous oral implants", J Dent Res, 72, pp.2~8 (1993)
- Carter DR, "Mechanical properties and composition of cortical bone", Clin Orthop, 127, pp.265~274 (1977)
- Brånemark PI, "Osseointegrated implants in the treatment of the edentulous jaw:Experience from a 10-year period", Scand J Plast Reconstr Surg Suppl, 11(suppl 16), pp.1~13 (1977)
- Hoshaw SJ, "Mechanical loading of Brånemark implants affects interfacial bone modeling and remodeling", Int J Oral Maxillofac Implants, 9, pp.345~360 (1994)
- Quirynen M, "Fixture design and overload influence marginal bone loss and fixture success in the Brånemark system", Clin Oral Implants Res, 3, pp.104~111 (1992)
- Naert I, "A study of 589 consecutive implants supporting complete fixed prostheses. Part II: Prosthetic aspects", J Prosthet Dent, 68, pp.949~956 (1992)
- English CE, "Biomechanical concerns with fixed partial dentures involving implants", Implant Dent, 2, pp.221~242 (1993)
- Buser D, "The original one-stage dental implant system and its clinical application", Periodontology, 17, pp.106~118 (1998)
- Rangert B, "Bending overload and implant fracture: a retrospective clinical analysis", Int J Oral Maxillofac Implants, 1, pp.326~334 (1986)
- Becker CM, "Implant-retained cantilever fixed prosthesis: Where and When", J Prosthet Dent, 84, pp.432~435 (2000)
- 박지헌, "Effect of number of implants and cantilever design on stress distribution in three-unit fixed partial dentures: A three-dimensional finite element analysis", 대한치과보철학회지, 46(3), pp.290~298 (2008), 대한치과보철학회
- Kivanc A, "Finite element stress analysis of the influence of staggered versus straight placement of dental implants", Int J Oral Maxillofac implants, 16, pp.722~730 (2001)
- Kivanc A, "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, 10, pp.238~245 (2001)
- Roxana S, "Influence of restoration type on stress distribution in bone around implants: A three-dimensional finite element analysis", Int J Oral Maxillofac Implants, 13, pp.82~90 (1998)
- Cho CH, "Program of construction analysis by finite element analysis", pp.20~ (1989), Chungrim Publishing.co
- Robert K, "Photoelastic stress patterns produced by implant-retained overdentures", J Prosthet Dent, 80, pp.559~564 (1998)
- Benzing UR, "Biomechanical aspects of two different implant-prosthetic concepts for edentulous maxillae", Int J Maxillofac Implants, 10, pp.188~198 (1995)
- Sullivan D, "Prosthetic consideration for the utillization of osseointegrated fixtures in the partially edentulos arch", Int J Oral Maxillofac Implants, 1, pp.39~45 (1986)
- Misch CE, "Dental implant Prosthetics", pp.184~ (2005), Mosby
- Osama AH, "The staggere installation of dental implants and its effect on bone stresses", Clin Implant Dent Rel Res, 9, pp.121~127 (2007)
- 권영숙, "골유착성 임플란트 지지 고정성 보철물과 자연치의 최대교합력 비교", 대한치과보철학회지, 43(4), pp.498~510 (2005), 대한치과보철학회
- Mericske-stern R, "Occlusal force and oral tactile sensibility measured in partially edntulous patients with ITI implants", Int J oral Maxillofacial Implants, 10, pp.345~354 (1995)
- Holmglen EP, "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, 24, pp.80~88 (1998)
- Iplikcioglu H, "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, 30, pp.41~46 (2002)
- Misch CE, "Contemporary implant dentistry. 2nd ed", pp.652~656 (1999), Mosby
- Hebel KS, "Cement retained versus screw retained implant restorations; Achieving optimal occlusion and esthetics in implant dentistry", J Prosthet Dent, 77, pp.28~35 (1997)
- 유성현, "수종의 임플랜트 시스템에 따른 유한요소법적 응력분석에 관한 연구", 대한치과보철학회지, 44(2), pp.207~216 (2006), 대한치과보철학회
- Lum LB, "Load transfer from endosteal implants to supporting bone: An analysis using statics. Part one : Horizontal loading", J Oral Implantol, 18, pp.343~348 (1992)
- Lum LB, "Load transfer from endosteal implants to supporting bone: An analysis using statics. Part two : Axial loading", J Oral Implantol, 18, pp.349~353 (1995)
