Importance of the variable periodontal ligament geometry for whole tooth mechanical function: A validated numerical study

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• 作者：Anneke Nikolaus^a ; John D. Currey^c ; Tom Lindtner^b ; Claudia Fleck^a ; ^{claudia.fleck@tu-berlin.de} ; Paul Zaslansky^b ;
• 关键词：Tooth displacements ; PDL strain ; Alveolar bone stress ; Finite element analysis ; Mastication response ; Three-rooted tooth-PDL-bone complex
• 刊名：Journal of the Mechanical Behavior of Biomedical Materials
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：67
• 期：Complete
• 页码：61-73
• 全文大小：1276 K
• 卷排序：67

文摘

The PDL geometry strongly modulates the load response of the tooth-PDL-bone complex. Simulating a variable PDL reproduce in vivo tooth motion better than a uniform PDL. In such simulations, lower PDL strains and more uniform bone stresses are observed. Tooth motion and tilting are central protective design concepts of multi-rooted teeth. A hyperelastic material model for the PDL reliably recreates tooth motion under load.