Affiliation:
1. e-mail: Department of Mechanical Engineering, University of Alberta, 4-9 Mechanical Engineering Building, Edmonton, AB T6G 2G8, Canada
Abstract
The periodontal ligament is the tissue that provides early tooth motion as a result of applied forces during orthodontic treatment: a force-displacement behavior characterized by an instantaneous displacement followed by a creep phase and a stress relaxation phase. Stress relaxation behavior is that which provides the long-term loading to and causes remodelling of the alveolar bone, which is responsible for the long-term permanent displacement of the tooth. In this study, the objective was to assess six viscoelastic models to predict stress relaxation behavior of rabbit periodontal ligament (PDL). Using rabbit stress relaxation data found in the literature, it was found that the modified superposition theory (MST) model best predicts the rabbit PDL behavior as compared to nonstrain-dependent and strain-dependent versions of the Burgers four-parameter and the five-parameter viscoelastic models, as well as predictions by Schapery's viscoelastic model. Furthermore, it is established that using a quadratic form for MST strain dependency provides more stable solutions than the cubic form seen in previous studies.
Subject
Physiology (medical),Biomedical Engineering
Reference37 articles.
1. Experimentally Determined Mechanical Properties of, and Models for, the Periodontal Ligament: Critical Review of Current Literature;J. Dent. Biomech.,2011
2. Analytically Determined Mechanical Properties of, and Models for the Periodontal Ligament: Critical Review of Literature;J. Biomech.,2012
3. Biomechanical Behaviour of the Periodontal Ligament of the Beagle Dog During the First 5 Hours of Orthodontic Force Application;Eur. J. Orthod.,2006
4. Continuous Versus Interrupted Continuous Orthodontic Force Related to Early Tooth Movement and Root Resorption;Angle Orthod.,1995
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