Establishment of the three-dimensional finite element model of the first permanent mandibular molar and its stress analysis / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 394-397, 2005.
Article
in Chinese
| WPRIM
| ID: wpr-273205
ABSTRACT
<p><b>OBJECTIVE</b>To establish more rational three dimensional finite element model (FEM) of the first permanent mandibular molar and to study the internal stress distribution.</p><p><b>METHODS</b>The FEM was applied to analyze the stress distribution of the first permanent mandibular molar under various loading conditions.</p><p><b>RESULTS</b>Under all five loading conditions, the maximum von-Mises stress and compressive stress in enamel were larger than that in dentin, and the tensile stress in enamel was smaller than that in dentin. When vertical force and buccal-lingual oblique force were loaded, the stresses in the enamel and dentin were minimum; when lingual-buccal oblique force was loaded, the stresses were maximum; the stresses were mainly distributed at cervical region, furcation and apical area of the mesial-lingual root canal wall.</p><p><b>CONCLUSIONS</b>The stress value changes and stress distribution in the enamel and dentin were closely related with the direction of the occlusion force.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Physiology
/
Bite Force
/
In Vitro Techniques
/
Finite Element Analysis
/
Models, Dental
/
Dental Stress Analysis
/
Molar
Limits:
Adult
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2005
Type:
Article
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