Effect of Wear on Stress Distributions and Potential Fracture in Teeth

Overview

Journal J Mater Sci Mater Med

Publisher Springer

Specialty Biomedical Engineering

Date 2009 Jun 19

PMID 19536639

Citations 4

Authors

Chris Ford

Mark B Bush

Brian Lawn

Affiliations

Soon will be listed here.

Abstract

Finite element analysis is conducted on a tooth model with different degrees of wear. The model is taken as a hemispherical shell (enamel) on a compliant interior (dentin). Occlusal loading is simulated by contact with a flat or curved, hard or soft, indenter. Stress redistributions indicate that development of a wear facet may enhance some near-contact fracture modes (cone-ring cracks, radial-median cracks, edge-chipping), but have little effect on far-field modes (margin cracks). Contacts on worn surfaces with small, hard food objects are likely to be most deleterious, generating local stress concentrations and thereby accelerating the wear process. More typical contacts with larger-scale soft foods are unlikely to have such adverse effects. Implications concerning dietary habits of animals is an adjunct consideration in this work.

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References

Xu H, Smith D, Jahanmir S, Romberg E, Kelly J, Thompson V . Indentation damage and mechanical properties of human enamel and dentin. J Dent Res. 1998; 77(3):472-80. DOI: 10.1177/00220345980770030601. View

Spears I . A three-dimensional finite element model of prismatic enamel: a re-appraisal of the data on the Young's modulus of enamel. J Dent Res. 1997; 76(10):1690-7. DOI: 10.1177/00220345970760101101. View

Qasim T, Ford C, Bush M, Hu X, Malament K, Lawn B . Margin failures in brittle dome structures: relevance to failure of dental crowns. J Biomed Mater Res B Appl Biomater. 2006; 80(1):78-85. DOI: 10.1002/jbm.b.30571. View

Lucas P, Constantino P, Wood B, Lawn B . Dental enamel as a dietary indicator in mammals. Bioessays. 2008; 30(4):374-85. DOI: 10.1002/bies.20729. View

Janis C, Fortelius M . On the means whereby mammals achieve increased functional durability of their dentitions, with special reference to limiting factors. Biol Rev Camb Philos Soc. 1988; 63(2):197-230. DOI: 10.1111/j.1469-185x.1988.tb00630.x. View

Osborn J . The 3-dimensional morphology of the tufts in human enamel. Acta Anat (Basel). 1969; 73(4):481-95. DOI: 10.1159/000143313. View

Qasim T, Ford C, Bush M, Hu X, Lawn B . Effect of off-axis concentrated loading on failure of curved brittle layer structures. J Biomed Mater Res B Appl Biomater. 2005; 76(2):334-9. DOI: 10.1002/jbm.b.30373. View

Lawn B, Lee J, Constantino P, Lucas P . Predicting failure in mammalian enamel. J Mech Behav Biomed Mater. 2009; 2(1):33-42. DOI: 10.1016/j.jmbbm.2008.05.007. View

Chai H, Lee J, Constantino P, Lucas P, Lawn B . Remarkable resilience of teeth. Proc Natl Acad Sci U S A. 2009; 106(18):7289-93. PMC: 2678632. DOI: 10.1073/pnas.0902466106. View

10.

Lee J, Kwon J, Chai H, Lucas P, Thompson V, Lawn B . Fracture modes in human teeth. J Dent Res. 2009; 88(3):224-8. DOI: 10.1177/0022034508330055. View

11.

Lawn B, Lee J . Analysis of fracture and deformation modes in teeth subjected to occlusal loading. Acta Biomater. 2009; 5(6):2213-21. DOI: 10.1016/j.actbio.2009.02.001. View

12.

SOGNNAES R . The organic framework of the internal part of the enamel; with special regard to the organic basis for the so-called Tufts and Schreger's bands. J Dent Res. 1949; 28(6):549-57, illust. DOI: 10.1177/00220345490280060401. View

13.

Popowics T, Rensberger J, Herring S . The fracture behaviour of human and pig molar cusps. Arch Oral Biol. 2001; 46(1):1-12. DOI: 10.1016/s0003-9969(00)00102-3. View

14.

Teaford M, Ungar P . Diet and the evolution of the earliest human ancestors. Proc Natl Acad Sci U S A. 2000; 97(25):13506-11. PMC: 17605. DOI: 10.1073/pnas.260368897. View

15.

Cuy J, Mann A, Livi K, Teaford M, Weihs T . Nanoindentation mapping of the mechanical properties of human molar tooth enamel. Arch Oral Biol. 2002; 47(4):281-91. DOI: 10.1016/s0003-9969(02)00006-7. View

16.

Lawn B, Deng Y, Thompson V . Use of contact testing in the characterization and design of all-ceramic crownlike layer structures: a review. J Prosthet Dent. 2001; 86(5):495-510. DOI: 10.1067/mpr.2001.119581. View

17.

Kim J, Bhowmick S, Chai H, Lawn B . Role of substrate material in failure of crown-like layer structures. J Biomed Mater Res B Appl Biomater. 2006; 81(2):305-11. DOI: 10.1002/jbm.b.30666. View

18.

Qasim T, Bush M, Hu X, Lawn B . Contact damage in brittle coating layers: influence of surface curvature. J Biomed Mater Res B Appl Biomater. 2004; 73(1):179-85. DOI: 10.1002/jbm.b.30188. View