The accuracy of brackets placement in direct bonding technique: a comparison between the pole-like bracket positioning gauge and the star-like bracket positioning gauge

Lahcen Ousehal, Laila Lazrak

.

DOI: 10.4236/ojst.2011.14019                

Abstract

The accuracy of brackets placement is a key factor in successful orthodontic therapy. An in vitro study was conducted in ten models from a natural maxillary teeth model in order to compare the accuracy of brac- kets placement between two direct bonding instru- ments: the Pole-like Bracket Positioning Gauge and the Star-like Bracket Positioning Gauge. Our results have shown that: The Star-like Bracket Positioning Gauge is more precise in placing brackets vertically, whereas the Pole-like Bracket Positioning Gauge al-lows a better angulation of the bracket. Considering each tooth separately, there is no statistically signifi-cant difference between the two positioning gauges, except that the Star-like gauge gives better results in bracket’s height for the second premolar and the ca-nine, whereas the Pole-like gauge allows for a better positioning and a better vertical angulation of the brackets for the lateral incisor. No statistically signi- ficant difference was found between the two gauges on the mesiodistal position. Overall, the Star-like gau- ge showed a better accuracy in positioning brackets.

Keywords

Direct Bonding; Pole-Like Gauge; Star-Like Gauge

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Andrews, L.F. (1976) The straight-wire appliance. Explained and compared. Journal of Clinical Orthodontics, 10, 174-195.
[2]	Balut, N., Klapper, L., Sandrik, J. and Bowman, D. (1992) Variations in bracket placement in the preadjusted orthodontic appliances. American Journal of Orthodontics and Dentofacial Orthopedics, 102, 62-67. doi:10.1016/0889-5406(92)70015-3
[3]	Shpack, N. (2007) Bracket placement in lingual vs labial systems and direct vs indirect bonding. Angle Orthodontist, 77, 509-517. doi:10.2319/0003-3219(2007)077[0509:BPILVL]2.0.CO;2
[4]	Hodge, T.M. (2004) A randomized clinical trial comparing the accuracy of direct versus indirect bracket placement. Journal of Orthodontics, 31, 132-137. doi:10.1179/146531204225020427
[5]	Wiechman, D. (2003) Customized brackets and Archwire for lingual orthodontic treatment. American Journal of Orthodontics and Dentofacial Orthopedics, 124, 593- 599. doi:10.1016/j.ajodo.2003.08.008
[6]	Joiner, M. (2010) In-house precision bracket placement with the indirect bonding technique. American Journal of Orthodontics and Dentofacial Orthopedics, 137, 850-854. doi:10.1016/j.ajodo.2009.04.023
[7]	Thomas, D.S., Salome, N., Hatch, J. and Rugh, J. (2007) Practice-based comparison of direct and indirect bonding. American Journal of Orthodontics and Dentofacial Orthopedics, 132, 738-742. doi:10.1016/j.ajodo.2006.01.037
[8]	Koo, B.C. (1999) Comparison of the accuracy of brackets placement between direct and indirect bonding techniques. American Journal of Orthodontics and Dentofacial Orthopedics, 116, 346-351. doi:10.1016/S0889-5406(99)70248-9
[9]	Aguirre, M., King, G. and Waldron, J. (1982) Assessment of bracket placement and bond strength when comparing direct bonding to indirect bonding. American Journal of Orthodontics and Dentofacial Orthopedics, 82, 269-276.
[10]	Nassib, B. and Klapper, L. (1992) Variations in bracket placement in the preadjusted orthodontic appliance. American Journal of Orthodontics and Dentofacial Orthopedics, 102, 62-67. doi:10.1016/0889-5406(92)70015-3