Restricted accessResearch articleFirst published online 1994-2
A Comparison of the Frictional Characteristics of Five Initial Alignment Wires and Stainless Steel Brackets at Three Bracket to Wire Angulations—an in Vitro Study
The study investigated static planar frictional resistance between five initial alignment wires and stainless steel brackets at three brackets to wire angulations (0, 5 and 10 degrees). It was demonstrated that static frictional resistance increased significantly with increasing bracket to wire angulation due to binding within the system. Epoxy-coated steel had the highest static frictional resistance and coaxial stainless steel the lowest. Fibre-optic glass (Optiflex®) had low frictional resistance. The coefficient of friction followed the trends of static frictional resistance in all respects.
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References
1.
AndreasenG. F. and QuevedoF. R. (1970) Evaluation of frictional forces in the 0·022” × 0·028” edgewise bracketin vitro, Journal of Biomechanics, 3, 151–160.
2.
AngolkarP. V., KapilaS., DuncansonM.G. and NandaR. S. (1990) Evaluation of friction between ceramic brackets and orthodontic wires of four alloys, American Journal of Orthodontics and Dentofacial Orthopedics, 98, 499–506.
3.
BakerK. L., NeibergL. G., WelmerA. D. and HannaM. (1987) Frictional changes in force values caused by saliva substitution, American Journal of Orthodontics and Dentofacial Orthopedics, 91, 316–320.
4.
DrescherD., BourauelC. and SchumacherH-A. (1989) Frictional forces between bracket and archwire, American Journal of Orthodontics and Dentofacial Orthopedics, 96, 397–404.
5.
DrescherD., BourauelC. and SchumacherH-A. (1990) The loss of force by friction in arch-guided tooth movement, Fortschritte der Keiferorthopädie, fortscher, 51, 99–105 (English abstract).
6.
FrankC. A. and NikolaiR. J. (1980) A comparative study of frictional resistances between orthodontic bracket and archwire, American Journal of Orthodontics, 78, 593–609
7.
GarnerL. D., AllaiW. W. and MooreB. K. (1986) A comparison of frictional forces during simulated canine retraction of a continuous edgewise archwire, American Journal of Orthodontics and Dentofacial Orthopedics, 90, 199–203.
8.
GreenbergA. R. and KusyR. P. (1979) A survey of speciality coatings for orthodontic wires, Journal of Dental Research (Special Issue A), 58, 98, [IADR abstract, 23].
9.
JastrzebskiZ. D. (1959) Nature and Properties of Engineering Materials, John Wiley and Sons, Inc., New York.
10.
KapilaS., AngolkarP. V., DuncansonM.G. and NandaR. S. (1990) Evaluation of friction between edgewise stainless steel brackets and orthodontic wires of four alloys, American Journal of Orthodontics and Dentofacial Orthopedics, 98, 117–126.
11.
KeithO. (1990) A study of the relative frictional resistance and effects of wear of a stainless steel archwire against stainless steel, polycrystalline and single crystal aluminium oxide orthodontic brackets (in vitro), MSc Thesis, University of London.
12.
KusyR. P. and WhitleyJ. Q. (1989) The effects of sliding velocity on the coefficients of friction in a model orthodontic system, Dental Materials, 5, 235–240.
13.
KusyR. P., WhitleyJ. Q., MayhewM. J. and BuckthalJ. E. (1988) Surface roughness of orthodontic archwires via laser spectroscopy, Angle Orthodontist, 58, 33–45.
14.
NichollsJ. (1968) Frictional forces in fixed orthodontic appliances, Dental Practice (Transactions BSSO), 18, 362–366.
15.
PetersonL., SpencerR. and AndreasenG. F. (1982) A comparison of friction resistance for nitinol and stainless steel wire in edgewise brackets, Quintessence International, 5, 563–571.
16.
PopliK., PrattenD., GermaneN. and GunsolleyJ. (1989) Frictional resistance of ceramic and stainless steel orthodontic brackets, Journal of Dental Research, 68, 245.
17.
PrattenD., PopliK., GermaneN. and GunsolleyJ. (1990) Frictional resistance of ceramic and stainless steel orthodontic brackets, American Journal of Orthodontics and Dentofacial Orthopedics, 98, 398–403.
18.
ProffitW. R. (1986) Contemporary Orthodontics, C. V. Mosby Company, St. Louis, USA.
19.
RileyJ. L., GarrettS. G. and MoonP. C. (1979) Frictional forces of ligated plastic and metal edgewise brackets, Journal of Dental Research, 58, A21.
20.
RockW. P. and WilsonH. J. (1989) The effect of bracket type and ligation method upon forces exerted by orthodontic archwires, British Journal of Orthodontics, 16, 213–217.
21.
SchumacherH-A., BourauelC. and DrescherD. (1990) The effect of the ligature on the friction between bracket and arch, Fortschritte der Kieferorthopädie, fortscher, 51, 106–116 (English abstract).
22.
StannardJ. G., GauJ. M. and HannaM. A. (1986) Comparative friction of orthodontic wires under dry and wet conditions, American Journal of Orthodontics, 89, 485–491.
23.
TidyD. C. (1989) Frictional forces in fixed appliances, American Journal of Orthodontics and Dentofacial Orthopedics, 96, 249–254.
