Abstract
Space closing components which are utilized in the edge-wise fixed appliance technique are of interest from the mechanical point of view in that they are capable of applying a couple (N) as well as a retraction force (P) to a tooth. Pure translation of a tooth can in theory be produced if the N/P ratio has a value d equal to the perpendicular distance from the centre of resistance within the root to the line of action of the force P.
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References
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© 1985 Martinus Nijhoff Publishers, Dordrecht
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Waters, N.E. (1985). The Characteristics of Asymetrically Disposed Orthodontic Retraction Loops. In: Perren, S.M., Schneider, E. (eds) Biomechanics: Current Interdisciplinary Research. Developments in Biomechanics, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-7432-9_38
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DOI: https://doi.org/10.1007/978-94-011-7432-9_38
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-011-7434-3
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