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http://dx.doi.org/10.4047/jkap.2014.52.4.305

Analysis of stress distribution of tooth restored with metal-ceramic crown covering abfraction lesion according to its finish line location under occlusal load  

Kim, Jee-Hwan (Department of Prosthodontics, School of Dentistry,Yonsei University)
Yoon, Chol-Wook (Department of Prosthodontics, School of Dentistry,Yonsei University)
Kim, Taehyeon (Department of Prosthodontics, School of Dentistry,Yonsei University)
Kim, Han-Sung (Department of Medical Device Evaluation, Cardiovascular Devices Division, Yonsei University)
Woo, Dae-Gon (Korea Food and Drug Administration)
Lee, Keun-Woo (Department of Prosthodontics, School of Dentistry,Yonsei University)
Shim, June-Sung (Department of Prosthodontics, School of Dentistry,Yonsei University)
Publication Information
The Journal of Korean Academy of Prosthodontics / v.52, no.4, 2014 , pp. 305-311 More about this Journal
Abstract
Purpose: When the full veneer crown was treated in the tooth with abfraction lesion due to various causes, the prognosis of it may be compromised according to the location of the finish line, but there is few study about the location of its buccal finish line. The purpose of this study was to investigate the effect of location of the finish line of the full veneer crown on stress distribution of the tooth with abfraction lesion. Materials and methods: The two dimensional finite element model was developed to express tooth, surrounding tissue and full veneer crown. The stress distribution under eccentric 144 N occlusal load was analyzed using finite element analysis. The location of finish line was set just at the lower border of the lesion (Group 0), 1 mm (Group 1) and 2 mm (Group 2) below the lower border of the lesion. Results: In the Group 0, von Mises stress was concentrated at the finish line and the apex of the lesion. Also, the stress at the bucal finish line propagated to the lingual side. In the Group 1 and Group 2, stress distribution was similar each other. Stress was concentrated at the apex of lesion, but the stress at the buccal finish line did not propagate to the lingual side. That implied decrease of the possibility of horizontal crown fracture. Conclusion: Full veneer crown alleviated the stress concentrated at the apex of the abfraction lesion, when the finish line of full veneer crown was set below the lower border of abfraction lesion.
Keywords
Abfraction; Metal-ceramic crown; Finish line; Stress distribution; Finite element analysis;
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  • Reference
1 Grippo JO. Abfractions: a new classification of hard tissue lesions of teeth. J Esthet Dent 1991;3:14-9.   DOI
2 Lee WC, Eakle WS. Possible role of tensile stress in the etiology of cervical erosive lesions of teeth. J Prosthet Dent 1984;52:374-80.   DOI   ScienceOn
3 Francisconi LF, Graeff MS, Martins Lde M, Franco EB, Mondelli RF, Francisconi PA, Pereira JC. The effects of occlusal loading on the margins of cervical restorations. J Am Dent Assoc 2009;140:1275-82.   DOI
4 Ichim I, Schmidlin PR, Kieser JA, Swain MV. Mechanical evaluation of cervical glass-ionomer restorations: 3D finite element study. J Dent 2007;35:28-35.   DOI   ScienceOn
5 Grippo JO. Noncarious cervical lesions: the decision to ignore or restore. J Esthet Dent 1992;4:55-64.   DOI
6 Rosenstiel SF, Land MF, Fujimoto J. Contemporary fixed prosthodontics. 3rd ed. St. Louis; Mosby; 2001:xi, p. 868.
7 Rubin C, Krishnamurthy N, Capilouto E, Yi H. Stress analysis of the human tooth using a three-dimensional finite element model. J Dent Res 1983;62:82-6.   DOI   ScienceOn
8 Rees JS, Jacobsen PH. Modelling the effects of enamel anisotropy with the finite element method. J Oral Rehabil 1995;22:451-4.   DOI
9 Yaman SD, Alacam T, Yaman Y. Analysis of stress distribution in a maxillary central incisor subjected to various post and core applications. J Endod 1998;24:107-11.   DOI   ScienceOn
10 Versluis A, Douglas WH, Cross M, Sakaguchi RL. Does an incremental filling technique reduce polymerization shrinkage stresses? J Dent Res 1996;75:871-8.   DOI   ScienceOn
11 Sorensen JA, Engelman MJ. Ferrule design and fracture resistance of endodontically treated teeth. J Prosthet Dent 1990;63:529-36.   DOI   ScienceOn
12 Rees JS, Jacobsen PH. Elastic modulus of the periodontal ligament. Biomaterials 1997;18:995-9.   DOI
13 Vincent JFV. Structural biomaterials. Rev. ed. Princeton, NJ; Princeton University Press 1990:xii, p. 244.
14 Lewinstein I, Banks-Sills L, Eliasi R. Finite element analysis of a new system (IL) for supporting an implant-retained cantilever prosthesis. Int J Oral Maxillofac Implants 1995;10:355-66.
15 Palamara D, Palamara JE, Tyas MJ, Messer HH. Strain patterns in cervical enamel of teeth subjected to occlusal loading. Dent Mater 2000;16:412-9.   DOI   ScienceOn
16 Rees JS. The effect of variation in occlusal loading on the development of abfraction lesions: a finite element study. J Oral Rehabil 2002;29:188-93.   DOI   ScienceOn