HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Full Text (PDF) Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (19) Citing Articles via Google Scholar Google Scholar Articles by Cattaneo, P.M. Articles by Melsen, B. Search for Related Content PubMed PubMed Citation Articles by Cattaneo, P.M. Articles by Melsen, B.

The Finite Element Method: a Tool to Study Orthodontic Tooth Movement

Dept. of Orthodontics, Royal Dental College, University of Aarhus, Vennelyst Boulevard 9, DK-8000, Aarhus C, Denmark;

View larger version (110K): [in a new window]   Figure 1. A µCT-scan slice of the lower left segment of the mandible (A), the corresponding section as retrieved from the FE model in the case of the homogeneous model, where all elements are assigned the same Young’s modulus of 12,000 MPa (B), and in the case of the density-based model, where each bone element is assigned a Young’s modulus based on the true bone morphology (C). Exploded view of the finite element model of the lower jaw segment with alveolar bone, PDLs, canine, and first premolar (D).

View larger version (20K): [in a new window]   Figure 2. Graph showing the 3 constitutive models for the PDL: physiologic non-linear behavior (gray + circles), linear behavior with a low Young’s modulus (dark), and linear behavior with a high Young’s modulus (dotted).

View larger version (26K): [in a new window]   Figure 3. Lingual-buccal stresses at the PDL-bone interface for the canine during tipping (M/F =0, F = 50 cN; A) and during translation (M/F = 12, F = 100 cN; B).

View larger version (52K): [in a new window]   Figure 4. Von Mises’ stress (A), 1st principal stress (B), and 3rd principal stress (C) in a coronal section of the alveolar bone, when a tipping movement is simulated. PDL material properties are assumed to be non-linear (left) or linear (right). Units are given in MPa.