Evaluation of “All‐on‐Four” Concept and Alternative Designs with 3D Finite Element Analysis Method

Clinical Implant Dentistry and Related Research - Tập 16 Số 4 - Trang 501-510 - 2014
Derya Özdemir Doğan1, Nilüfer Tülin Polat2, Serkan Polat3, Emre Şeker4, Esma Başak Gül2
1Department of Prosthetic Dentistry, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey.
2Department of Prosthetic Dentistry; Faculty of Dentistry; Inonu University; Malatya Turkey
3Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Inonu University, Malatya, Turkey
4Department of Prosthetic Dentistry Faculty of Dentistry Yakindogu University Mersin Turkey

Tóm tắt

AbstractPurposeThe aim of the present study was to evaluate the effect of the forces on the implant and supporting alveolar ridge in “all on four” concept and alternative designs using finite element analysis.Materials and MethodsDifferent treatment alternatives with various implant designs were performed in an edentulous mandible. In Design 1, implants were placed according to “All‐on‐Four” concept; Design 2, two long (13 mm long, 4 mm diameter) and two short (7 mm long, 4 mm diameter) implants; Design 3, four long and two short implants; and Design 4, two long and four short implants were placed vertically. A force of 100 N for each tooth, a total of 300 N load was applied. Finite element analysis was used to evaluate and compare the different designs.ResultsThe stress concentration within the cortical bone was significantly higher than the trabecular bone around the neck of the implants. The maximum stress values were located around the cortical bone of the distal implant for all designs. The reduction in the number of implants did not diminish the success of the design.ConclusionsIn the presence of vertically resorbed posterior mandibula, although the “all on four” concept is a feasible approach clinically, short implants had decreased the amount of force transmitted to the supporting bone.

Từ khóa


Tài liệu tham khảo

10.1016/0022-3913(62)90124-5

Carlsson GE, 2005, Changes in the Prosthodontic Literature 1966 to 2042, J Can Dent Assoc, 71, 328

10.1016/j.medengphy.2005.04.025

10.1038/sj.bdj.4813766

10.1563/0-716a.1

10.1016/j.joms.2011.10.025

10.1111/j.1708‐8208.2010.00318.x

Misch CM, 2011, Bone augmentation of the atrophic posterior mandible for dental implants using rhBMP‐2 and titanium mesh: clinical technique and early results, Int J Periodontics Restorative Dent, 31, 581

10.1111/j.1708-8208.2003.tb00010.x

10.1111/j.1600-0501.2009.01852.x

10.1111/j.1708-8208.2005.tb00080.x

10.1111/j.1708-8208.2006.00024.x

10.1111/j.1708-8208.2006.00027.x

10.1111/j.1600‐0501.2011.02266.x

10.1515/bmt.2010.049

Neldam CA, 2010, State of the art of short dental implants: a systematic review of the literature, Clin Implant Dent Relat Res, 10, 1708

Raviv E, 2010, Short dental implants in reduced alveolar bone height, Quintessence Int, 41, 575

10.1902/jop.2004.75.2.327

10.1111/j.1708-8208.2000.tb00116.x

Deporter D, 2000, Simplifying management of the posterior maxilla using short, porous‐surfaced dental implants and simultaneous indirect sinus elevation, Int J Periodontics Restorative Dent, 20, 476

10.1016/j.ijom.2009.02.011

10.1111/j.1708-8208.2008.00121.x

Anusavice KJ, 2003, Philips' science of dental materials, 166

Bidez MW, 1992, Force transfer in implant dentistry: basic concepts and principals, J Oral Implantol, 18, 264

10.1177/154405910308200317

10.1177/00220345830620021701

Akça K, 2001, Finite element stress analysis of the influence of staggered versus straight placement of dental implants, Int J Oral & Maxillofac Implants, 16, 722

Zyl PP, 1995, Three dimensional finite element model of a human mandible incorporating six osseointegrated implants for stress analysis of mandibular cantilever prosthesis, Int J Oral Maxillofac Implants, 10, 51

10.1016/j.prosdent.2004.12.019

Fazi G, 2011, Three‐dimensional finite element analysis of different implant configurations for a mandibular fixed prosthesis, Int J Oral Maxillofac Implants, 26, 752

10.1563/1548-1336(2000)026<0077:TROTFE>2.3.CO;2

10.1563/0.674.1

10.1016/j.prosdent.2004.10.001

10.1016/S0022-3913(89)80049-6

10.1016/S0021-9290(98)00118-3

10.1177/0022034511417442

10.1563/1548-1336(1998)024<0080:EPOODI>2.3.CO;2

10.1016/S0021-9290(98)00108-0

10.1111/j.1532-849X.2007.00246.x

10.1016/S0300-5712(01)00057-4

Lum LB, 1992, Load transfer from endosteal implants to supporting bone: an analysis using statics. Part one: horizontal loading, J Oral Implantol, 18, 343

10.1016/0022-3913(92)90293-J

10.1016/S0022-3913(96)90301-7

Akça K, 2002, A comparison of three‐dimensional finite element stress analysis with in vitro strain gauge measurements on dental implants, Int J Prosthodont, 15, 115

Pierrisnard L, 2003, Influence of implant length and bicortical anchorage on implant stress distribution, Clin Oral Implants Res, 5, 254

Clelland NL, 1993, A photoelastic and strain gauge analysis of angled abutments for an implant system, Int J Oral Maxillofac Implants, 8, 541

10.1111/j.1532-849X.1995.tb00323.x

10.1034/j.1600-0501.2002.130613.x

Stegaroiu R, 1998, Influence of restoration type on stress distribution in bone around implants: a three‐dimensional finite element analysis, Int J Oral Maxillofac Implants, 13, 82

10.14219/jada.archive.2011.0170

10.1111/j.1600‐0501.2011.02344.x

10.1563/AAID-JOI-D-10-00133

Kim KS, 2011, Biomechanical comparison of axial and tilted implants for mandibular full‐arch fixed prostheses, Int J Oral Maxillofac Implants, 26, 976

Naini RB, 2011, Tilted or parallel implant placement in the completely edentulous mandible? A three‐dimensional finite element analysis, Int J Oral Maxillofac Implants, 26, 776

Silva GC, 2010, Stress patterns on implants in prostheses supported by four or six implants: a three‐dimensional finite element analysis, Int J Oral Maxillofac Implants, 25, 239

10.1016/j.jpor.2010.04.004

Begg T, 2009, Stress patterns around distal angled implants in the all‐on‐four concept configuration, Int J Oral Maxillofac Implants, 24, 663

10.1016/j.medengphy.2009.03.004

10.1034/j.1600-0501.2000.011005465.x

Thông tin
Thông tin xuất bản

Clinical Implant Dentistry and Related Research

Tập 16 Số 4

501-510

Thông tin tác giả