Reevaluation of the Strain Pressure Theory: Toward a Better Understanding the Biology of Tooth Movement
The aim of this report was to analyze the majority of publications referred to orthodontic movement Biological basis, principally strain- pressure theory taking account contemporaneous methodological study designs. The literature published in Pubmed from 1967 to 2014 was reviewed, in addition to wel...
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| Autores principales: | , |
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| Lenguaje: | English |
| Publicado: |
Universidad de La Frontera. Facultad de Medicina
2017
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| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-381X2017000200003 |
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| Sumario: | The aim of this report was to analyze the majority of publications referred to orthodontic movement Biological basis, principally strain- pressure theory taking account contemporaneous methodological study designs. The literature published in Pubmed from 1967 to 2014 was reviewed, in addition to well-known scientific reports that were not classified under this database like classical manuscripts since 1839. The comment items are: Limitations of animal models, Histological slices, what to watch for, Rats as an experimental model in orthodontics, Strainpressure, the force used in these studies that fundament this theory, Reevaluation studies about strain-pressure theory in biology movement using contemporaneous models, Up to date concepts, Theory reevaluation the first step to understanding new acceleration concepts and Movement biology research, present and future. After analyzing those items we concluded: A 3D perspective is essential for a complete understanding of events in tooth movement involves two interrelated processes: the bending of alveolar bone and remodeling of the periodontal tissues. It's important to start, and acknowledge that the PDL cannot be divided into two different areas that react independently to an applied force. It´s a continuous periodontal compartment in OTM, rather than a pressure side and a tension side. When an orthodontic force is applied there are two simultaneous effects that correlate. Alveolar bone flexion and remodeling of the periodontal tissues. Alveolar Bone deformation compromising the main structures (PDL, bone and cement), compression and tension can coexist in different directions. The magnitudes of compression and tension are typically different in different directions. As the majority of research and studies indicate that fundamental movement biology are made on animal models, it is important to know that their results and conclusions, under the actual evidenced based practice guidelines do not allow to make clinical decisions even if they are included on systematic reviews. |
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