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Proceedings Paper

Orthodontic forces sensing with polymer PCF
Author(s): M. S. Milczewski; C. Martelli; J. Canning; H. J. Kalinowski; J. A. Simões; Michael Stevenson; P. Talaia
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Paper Abstract

Orthodontic forces are measured using a polymer photonic crystal fibre sensor. Transversal pressure deforms the fibre structure proportionally to the applied load causing light to leak out. The characterization for transversal pressure demonstrates linear behaviour within the studied load range 0.09 to 4.7 N. For the orthodontic measurements the sensor is placed between the orthodontic appliance and only one tooth. Loads ranging over 0.98 to 8.82 N, simulating extra oral appliances, are applied over the orthodontic system at the first molar region. The surface of the tooth experiences forces ranging from 0 to ~0.63 N compatible with forces required for dental movement.

Paper Details

Date Published: 2 July 2007
PDF: 4 pages
Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66191M (2 July 2007); doi: 10.1117/12.738594
Show Author Affiliations
M. S. Milczewski, Univ. Tecnológica Federal do Paraná (Brazil)
Univ. of Sydney (Australia)
C. Martelli, Univ. of Sydney (Australia)
J. Canning, Univ. of Sydney (Australia)
H. J. Kalinowski, Univ. Tecnológica Federal do Paraná (Brazil)
J. A. Simões, Univ. de Aveiro (Portugal)
Michael Stevenson, Univ. of Sydney (Australia)
P. Talaia, Univ. de Aveiro (Portugal)


Published in SPIE Proceedings Vol. 6619:
Third European Workshop on Optical Fibre Sensors

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