Comparison of occlusal loading conditions in a lower second premolar using three-dimensional finite element analysis

被引:78
作者
Benazzi, Stefano [1 ]
Grosse, Ian R. [2 ]
Gruppioni, Giorgio [3 ]
Weber, Gerhard W. [4 ]
Kullmer, Ottmar [5 ]
机构
[1] Max Planck Inst Evolutionary Anthropol, Dept Human Evolut, D-04103 Leipzig, Germany
[2] Univ Massachusetts, Dept Mech & Ind Engn, Amherst, MA 01003 USA
[3] Univ Bologna, Dept Cultural Heritage, I-48126 Ravenna, Italy
[4] Univ Vienna, Dept Anthropol, A-1090 Vienna, Austria
[5] Senckenberg Res Inst, Dept Palaeoanthropol & Messel Res, D-60325 Frankfurt, Germany
关键词
Biomechanics; Loading conditions; Occlusal wear pattern; Functional morphology; NONCARIOUS CERVICAL LESIONS; STRESS-DISTRIBUTION; HUMAN MOLARS; TOOTH; ABFRACTION; ENAMEL; TEETH; RESTORATION; PATTERNS; ABRASION;
D O I
10.1007/s00784-013-0973-8
中图分类号
R78 [口腔科学];
学科分类号
100302 [口腔临床医学];
摘要
This study aimed to compare the patterns of stress distribution in a lower second premolar using three conventional occlusal loadings and two more realistic loading scenarios based on occlusal contact areas. The teeth of a dried modern human skull were micro-CT scanned in maximum intercuspation contact with a Viscom X8060 NDT X-ray system. A kinematic analysis of the surface contacts between antagonistic right upper and lower teeth during the power stroke was carried out in the Occlusal Fingerprint Analyser (OFA) software. Stress distribution in the lower right second premolar was analysed using three-dimensional finite element (FE) methods, considering occlusal information taken from OFA results (cases 4-5). The output was compared to that obtained by loading the tooth with a single point force (cases 1-3). Results for cases 1-3 differ considerable from those of cases 4-5. The latter show that tensile stresses might be concentrated in grooves and fissures of the occlusal surface, in the marginal ridges, in the disto-lingual and in the distal side of the root. Moreover, the premolar experiences high tensile stresses in the buccal aspect of the crown, supporting the idea that abfraction might be a dominant factor in the aetiology of non-carious cervical lesions. The application of FE methods in dental biomechanics can be advanced considering individual wear patterns. More realistic occlusal loadings are of importance for both new developments in prosthetic dentistry and improvements of materials for tooth restoration, as well to address open questions about the worldwide spread problem of dental failure.
引用
收藏
页码:369 / 375
页数:7
相关论文
共 52 条
[1]
Finite element analysis of stresses in endodontically treated, dowel-restored teeth [J].
Asmussen, E ;
Peutzfeldt, A ;
Sahafi, A .
JOURNAL OF PROSTHETIC DENTISTRY, 2005, 94 (04) :321-329
[2]
A critical review of non-carious cervical (wear) lesions and the role of abfraction, erosion, and abrasion [J].
Bartlett, DW ;
Shah, P .
JOURNAL OF DENTAL RESEARCH, 2006, 85 (04) :306-312
[3]
Individual tooth macrowear pattern guides the reconstruction of Sts 52 (Australopithecus africanus) dental arches [J].
Benazzi, Stefano ;
Kullmer, Ottmar ;
Schulz, Dieter ;
Gruppioni, Giorgio ;
Weber, Gerhard W. .
AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, 2013, 150 (02) :324-329
[4]
Brief communication: Comparing loading scenarios in lower first molar supporting bone structure using 3D finite element analysis [J].
Benazzi, Stefano ;
Kullmer, Ottmar ;
Grosse, Ian R. ;
Weber, Gerhard W. .
AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, 2012, 147 (01) :128-134
[5]
A reassessment of the Neanderthal teeth from Taddeo cave (southern Italy) [J].
Benazzi, Stefano ;
Viola, Bence ;
Kullmer, Ottmar ;
Fiorenza, Luca ;
Harvati, Katerina ;
Paul, Tobias ;
Gruppioni, Giorgio ;
Weber, Gerhard W. ;
Mallegni, Francesco .
JOURNAL OF HUMAN EVOLUTION, 2011, 61 (04) :377-387
[6]
Using occlusal wear information and finite element analysis to investigate stress distributions in human molars [J].
Benazzi, Stefano ;
Kullmer, Ottmar ;
Grosse, Ian R. ;
Weber, Gerhard W. .
JOURNAL OF ANATOMY, 2011, 219 (03) :259-272
[7]
Stress distribution in a post-restored tooth using the three-dimensional finite element method [J].
Boschian Pest, L. ;
Guidotti, S. ;
Pietrabissa, R. ;
Gagliani, M. .
JOURNAL OF ORAL REHABILITATION, 2006, 33 (09) :690-697
[8]
3D FEA of high-performance polyethylene fiber reinforced maxillary dentures [J].
Cheng, Y. Y. ;
Li, J. Y. ;
Fok, S. L. ;
Cheung, W. L. ;
Chow, T. W. .
DENTAL MATERIALS, 2010, 26 (09) :E211-E219
[9]
Coelho PG, 2009, INT J PROSTHODONT, V22, P78
[10]
The influence of different core material on the FEA-determined stress distribution in dental crowns [J].
De Jager, N ;
de Kier, M ;
van der Zel, JM .
DENTAL MATERIALS, 2006, 22 (03) :234-242