Comparison of two different restoration materials and two different implant designs of implant-supported fixed cantilevered prostheses: A 3D finite element analysis

Ahmet Kursad Culhaoglu; Serhat Emre Ozkir; Gozde Celik; Hakan Terzioglu

doi:10.4103/2278-9626.112315

European Journal of General Dentistry, Table of Contents

CC BY-NC-ND 4.0 · European Journal of General Dentistry 2013; 2(02): 144-150
DOI: 10.4103/2278-9626.112315

Original Article

Comparison of two different restoration materials and two different implant designs of implant-supported fixed cantilevered prostheses: A 3D finite element analysis

Ahmet Kursad Culhaoglu

Department of Prosthodontics, Kirikkale University, Faculty of Dentistry, Kirikkale, Turkey

,

Serhat Emre Ozkir

¹Department of Prosthodontics, Afyon Kocatepe University, Faculty of Dentistry, Afyonkarahisar, Turkey

,

Gozde Celik

²Department of Prosthodontics, Bezmialem University, Faculty of Dentistry, Fatih, Istanbul, Turkey

,

Hakan Terzioglu

³Department of Prosthodontics, Ankara University, Faculty of Dentistry, Besevler, Ankara, Turkey

› Author Affiliations

Abstract

PDF Download

Abstract

Purpose: A key factor for the success or failure of a dental implant is the manner of stresses transferred to the surrounding bone. Parallel to this situation, cantilever extensions where it is not possible to place another implant, would cause greater stress and it should be avoided if possible. Manufacturers and clinicians try to develop new implant designs and superstructure materials to reduce the stresses around the implant and supporting bone tissue. This study analyzed the influence of superstructure materials and implant designs on stress distribution around dental implants supporting cantilever restoration under loading conditions. Materials and Methods: Three-dimensional finite element models of a 3-unit cantilever bridge were subjected to 150 N occlusal load to evaluate two different superstructure materials (conventional metal ceramic, fiber reinforced composite) and two different implant designs, cylinder type (Institut Straumann AG, Waldenburg, Switzerland) and cylinder type with micro threads around implant neck (Astra Tech AB, Mölndal, Sweden). To evaluate the distribution of stresses within the bone surrounding the implants, 3-dimensional finite element analysis was conducted using four mathematical models of unilateral 3-unit cantilever fixed partial dentures supported by two implants. Results: The stress distribution patterns and stress values were similar and stress concentrations were similar in both restoration materials. The highest stress concentrations were around the adjacent ITI implant, which supports the conventional metal porcelain restoration. Conclusions: Although, there was no significant difference in stress distribution between fiber reinforced composite (FRC) and conventional metal porcelain, stress values were lower in FRC restorations. The Astra-Tech micro-thread design reduced the stress that was distributed throughout the implant body, but it should be noted that the peak stress was still present on the implant neck.

Keywords

Cantilevers - fiber reinforced composites - finite element analysis - implant design

PDF (4436 kb)

References

References
1 Waters NE. Some mechanical and physical properties of teeth. Symp Soc Exp Biol 1980;34:99-135.
2 Brunski JB. In vivo bone response to biomechanical loading at the bone/dental-implant interface. Adv Dent Res 1999;13:99-119.
3 Hansson S. The implant neck: Smooth or provided with retention elements: A biomechanical approach. Clin Oral Implants Res 1999;10:394-405.
4 Marin C, Granato R, Suzuki M, Janal MN, Gil JN, Nemcovsky C, et al. Biomechanical and histomorphometric analysis of etched and non-etched resorbable blasting media processed implant surfaces: An experimental study in dogs. J Mech Behav Biomed Mater 2010;3:382-91.
5 Coelho PG, Suzuki M, Guimaraes MV, Marin C, Granato R, Gil JN, et al. Early bone healing around different implant bulk designs and surgical techniques: A study in dogs. Clin Implant Dent Relat Res 2010;12:202-8.
6 Bonfante EA, Granato R, Marin C, Suzuki M, Oliveira SR, Giro G, et al. Early bone healing and biomechanical fixation of dual acid-etched and as-machined implants with healing chambers: An experimental study in dogs. Int J Oral Maxillofac Implants 2011;26:75-82.
7 Bevilacqua M, Tealdo T, Menini M, Pera F, Mossolov A, Drago C, et al. The influence of cantilever length and implant inclination on stress distribution in maxillary implant-supported fixed dentures. J Prosthet Dent 2011;105:5-13.
8 Stanford CM. Surface modification of biomedical and dental implants and the processes of inflammation, wound healing and bone formation. Int J Mol Sci 2010;11:354-69.
9 Ciftçi Y, Canay S. The effect of veneering materials on stress distribution in implant-supported fixed prosthetic restorations. Int J Oral Maxillofac Implants 2000;15:571-82.
10 Ruyter IE, Ekstrand K, Bjork N. Development of carbon/graphite fiber reinforced poly (methyl methacrylate) suitable for implant-fixed dental bridges. Dent Mater 1986;2:6-9.
11 Behr M, Rosentritt M, Lang R, Chazot C, Handel G. Glass-fibre-reinforced-composite fixed partial dentures on dental implants. J Oral Rehabil 2001;28:895-902.
12 Meriç G, Dahl JE, Ruyter IE. Physicochemical evaluation of silica-glass fiber reinforced polymers for prosthodontic applications. Eur J Oral Sci 2005;113:258-64.
13 Stegaroiu R, Khraisat A, Nomura S, Miyakawa O. Influence of superstructure materials on strain around an implant under 2 loading conditions: A technical investigation. Int J Oral Maxillofac Implants 2004;19:735-42.
14 Kunavisarut C, Lang LA, Stoner BR, Felton DA. Finite element analysis on dental implant-supported prostheses without passive fit. J Prosthodont 2002;11:30-40.
15 Cook SD, Klawitter JJ, Weinstein AM. A model for the implant-bone interface characteristics of porous dental implants. J Dent Res 1982;61:1006-9.
16 Huang HL, Huang JS, Ko CC, Hsu JT, Chang CH, Chen MY. Effects of splinted prosthesis supported a wide implant or two implants: A three-dimensional finite element analysis. Clin Oral Implants Res 2005;16:466-72.
17 Kitamura E, Stegaroiu R, Nomura S, Miyakawa O. Biomechanical aspects of marginal bone resorption around osseointegrated implants: Considerations based on a three-dimensional finite element analysis. Clin Oral Implants Res 2004;15:401-12.
18 Yokoyama S, Wakabayashi N, Shiota M, Ohyama T. The influence of implant location and length on stress distribution for three-unit implant-supported posterior cantilever fixed partial dentures. J Prosthet Dent 2004;91:234-40.
19 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.
20 Sato Y, Shindoi N, Hosokawa R, Tsuga K, Akagawa Y. Biomechanical effects of double or wide implants for single molar replacement in the posterior mandibular region. J Oral Rehabil 2000;27:842-5.
21 Gunne J, Rangert B, Glantz PO, Svensson A. Functional loads on freestanding and connected implants in three-unit mandibular prostheses opposing complete dentures: An in vivo study. Int J Oral Maxillofac Implants 1997;12:335-41.
22 Skalak R. Biomechanical considerations in osseointegrated prostheses. J Prosthet Dent 1983;49:843-8.
23 Stegaroiu R, Sato T, Kusakari H, Miyakawa O. 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.
24 Bevilacqua M, Tealdo T, Pera F, Menini M, Mossolov A, Drago C, et al. Three-dimensional finite element analysis of load transmission using different implant inclinations and cantilever lengths. Int J Prosthodont 2008;21:539-42.
25 Rubo JH, Capello Souza EA. Finite-element analysis of stress on dental implant prosthesis. Clin Implant Dent Relat Res 2010;12:105-13.
26 Jacques LB, Moura MS, Suedam V, Souza EA, Rubo JH. Effect of cantilever length and framework alloy on the stress distribution of mandibular-cantilevered implant-supported prostheses. Clin Oral Implants Res 2009;20:737-41.
27 Rubo JH, Souza EA. Finite element analysis of stress in bone adjacent to dental implants. J Oral Implantol 2008;34:248-55.
28 Suedam V, Souza EA, Moura MS, Jacques LB, Rubo JH. Effect of abutment′s height and framework alloy on the load distribution of mandibular cantilevered implant-supported prosthesis. Clin Oral Implants Res 2009;20:196-200.
29 Kawano F, Ohguri T, Ichikawa T, Matsumoto N. Influence of thermal cycles in water on flexural strength of laboratory-processed composite resin. J Oral Rehabil 2001;28:703-7.
30 Kase HR, Tesk JA, Case EC. Elastic constants of two dental porcelains. J Mater Sci 1985;20:524-31.
31 Erkmen E, Meriç G, Kurt A, Tunç Y, Eser A. Biomechanical comparison of implant retained fixed partial dentures with fiber reinforced composite versus conventional metal frameworks: A 3D FEA study. J Mech Behav Biomed Mater 2011;4:107-16.
32 Cehreli MC, Akça K, Iplikçioğlu H. Force transmission of one- and two-piece morse-taper oral implants: A nonlinear finite element analysis. Clin Oral Implants Res 2004;15:481-9.
33 Bassit R, Lindström H, Rangert B. In vivo registration of force development with ceramic and acrylic resin occlusal materials on implant-supported prostheses. Int J Oral Maxillofac Implants 2002;17:17-23.
34 Wang TM, Leu LJ, Wang J, Lin LD. Effects of prosthesis materials and prosthesis splinting on peri-implant bone stress around implants in poor-quality bone: A numeric analysis. Int J Oral Maxillofac Implants 2002;17:231-7.
35 Ciftçi Y, Canay S. Stress distribution on the metal framework of the implant-supported fixed prosthesis using different veneering materials. Int J Prosthodont 2001;14:406-11.
36 Gracis SE, Nicholls JI, Chalupnik JD, Yuodelis RA. Shock-absorbing behavior of five restorative materials used on implants. Int J Prosthodont 1991;4:282-91.
37 Himmlová L, Dostálová T, Kácovský A, Konvicková S. Influence of implant length and diameter on stress distribution: A finite element analysis. J Prosthet Dent 2004;91:20-5.
38 Misch CE. Contemporary Implant Dentistry. Missouri: Mosby; 1999. p. 151-61.
39 Akça K, Iplikçioğlu H. Finite element stress analysis of the influence of staggered versus straight placement of dental implants. Int J Oral Maxillofac Implants 2001;16:722-30.
40 Barbier L, Vander Sloten J, Krzesinski G, Schepers E, Van der Perre G. Finite element analysis of non-axial versus axial loading of oral implants in the mandible of the dog. J Oral Rehabil 1998;25:847-58.
41 Mericske-Stern R, Assal P, Mericske E, Bürgin W. Occlusal force and oral tactile sensibility measured in partially edentulous patients with ITI implants. Int J Oral Maxillofac Implants 1995;10:345-53.
42 Sahin S, Cehreli MC, Yalçin E. The influence of functional forces on the biomechanics of implant-supported prostheses - A review. J Dent 2002;30:271-82.
43 Jeong CM, Caputo AA, Wylie RS, Son SC, Jeon YC. Bicortically stabilized implant load transfer. Int J Oral Maxillofac Implants 2003;18:59-65.
44 Palmer RM, Smith BJ, Palmer PJ, Floyd PD. A prospective study of Astra single tooth implants. Clin Oral Implants Res 1997;8:173-9.
45 Lee DW, Choi YS, Park KH, Kim CS, Moon IS. Effect of microthread on the maintenance of marginal bone level: A 3-year prospective study. Clin Oral Implants Res 2007;18:465-70.
46 Schrotenboer J, Tsao YP, Kinariwala V, Wang HL. Effect of microthreads and platform switching on crestal bone stress levels: A finite element analysis. J Periodontol 2008;79:2166-72.
47 Hudieb MI, Wakabayashi N, Kasugai S. Magnitude and direction of mechanical stress at the osseointegrated interface of the microthread implant. J Periodontol 2011;82:1061-70.
48 Ferraz CC, Anchieta RB, de Almeida EO, Freitas AC Jr, Ferraz FC, Machado LS, et al. Influence of microthreads and platform switching on stress distribution in bone using angled abutments. J Prosthodont Res 2012;56:256-63.