Objective: To evaluate the degree to which the height, width, and cross-section of rectangular and square orthodontic archwires affect the play between the archwires and the bracket slot. Materials and Methods: The stated measurements (height and width) of 43 archwires from six different manufacturers were compared with real values obtained using a digital gauge. The curvature (radius) of the edge bevels was also measured to calculate the play within the slot, and this measurement was compared with the ideal value. Results: The real height and width of the archwires differed from those stated by the manufacturers, falling within the range 26.47% and +5.10%. The curvature of each bevel on each archwire cross-section was shown to differ, and consequently increased the real play between the archwire and slot with respect to the ideal to different degrees. Conclusions: The archwire-slot play was greater than the ideal for each archwire considered, inevitably leading to a loss of information within the system.

Comparative analysis of real and ideal wire-slot play in square and rectangular archwires

LOMBARDO, Luca
Primo
;
ARREGHINI, Angela
;
MOLLICA, Francesco;MERLIN, Mattia;FORTINI, Annalisa;SICILIANI, Giuseppe
Ultimo
2015

Abstract

Objective: To evaluate the degree to which the height, width, and cross-section of rectangular and square orthodontic archwires affect the play between the archwires and the bracket slot. Materials and Methods: The stated measurements (height and width) of 43 archwires from six different manufacturers were compared with real values obtained using a digital gauge. The curvature (radius) of the edge bevels was also measured to calculate the play within the slot, and this measurement was compared with the ideal value. Results: The real height and width of the archwires differed from those stated by the manufacturers, falling within the range 26.47% and +5.10%. The curvature of each bevel on each archwire cross-section was shown to differ, and consequently increased the real play between the archwire and slot with respect to the ideal to different degrees. Conclusions: The archwire-slot play was greater than the ideal for each archwire considered, inevitably leading to a loss of information within the system.
2015
Lombardo, Luca; Arreghini, Angela; Bratti, Elena; Mollica, Francesco; Spedicato, Giorgio; Merlin, Mattia; Fortini, Annalisa; Siciliani, Giuseppe
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2329357
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