In vitro comparison of bond strength on enamel brackets Clarity standard (Transbond XT 3M), with brackets Clarity APC Plus (3M) by a shear test.
Article Sidebar
Downloads
Main Article Content
Abstract
In an attempt to save time during brackets' bonding, manufacturers created metal and ceramic brackets that have been precoated with the adhesive material. The adhesive used on the precoated brackets (APC) is similar in composition to that used for bonding uncoated brackets. The difference is essentially in the percentages of the various ingredients incorporated in the adhesive material. The purpose of this study is to determine if the APC Plus brackets have better shear bond strength than the Clarity standard brackets. Forty-five recently extracted human first inferior premolars were mounted in acrylic bases and these two types of brackets were bonded according to the manufacturer's instructions. The shear bond strength was produced by the MTS machine of universal forces. The current findings indicated that: (1) the Clarity APC Plus brackets didn't have higher shear bond strength than the Clarity standard brackets. (2) The Clarity standard and the Clarity APC Plus brackets didn't have any statistically significant difference in the shear bond strength. (3) All bracket adhesive samples provided clinically acceptable shear bond forces.
Article Details
References
López F. Fuerza de retención el esmalte con adhesivos usados en ortodoncia, utilizando dos tipos de base de brackets (estudio comparativo in vitro). Revista Odontológica Mexicana. 2004;122-126.
Ascención V. Adhesion promoters: Effects on the bond strength of brackets. American Journal of Dentistry. 2005; 18(6)323-326.
Ascención V. Bond strength of brackets bonded with an adhesion promoter. British Dental Journal. 2004; 482-486.
M Company. Folleto APC Plus, 3MUnitec USA. 2003.
Eliades T, Brantley W. The inappropiateness of conventional orthodontic bond strength assessment protocols. Eur Journal Orthodontics. 2000;22(1): 13-23.
Matasa C. Microbial attack of orthodontic adhesives. American Journal of Orthodontics and Dentofacial Orthopedics. 1995; 10882): 132-141.
Odegaard J, Segner D. Shear bond strength of metal brackets compared with a new ceramic bracket. American Journal of Orthodontics and Dentofacial Orthopedics. 1998;94(3):201-206.
Lopez J. Retentive shear strengths of various bonding attachment bases. American Journal of Orthodontics and Demofaciat Orthopedics. 1980;77(6):669- 78.
Joseph V, Rossouw E. The shear bond strengths of stainless steel and ceramic brackets used with chemically and light- activated composite resins. American Journal of Orthodontics & Dentofacial Orthopedics. 1990;97(2):121-125.
Britton J. Shear bond strength of ceramic orthodontic brackets to enamel. American Journal of Orthodontics and Dentofacial Orthopedics. 1990;98(4):348-353.
Forsberg C, Hagberg C. Shear bond strength of ceramic brackets with chemical or mechanical retention. British Dental Journal. 1992; 19(3): 183-189.
Reynolds I. A review of direct orthodontic bonding. British Journal of Orthodontics. 1979;171-178.
Fox N, McCabe J, Bucklley J. A critique of bond strength testing in orthodontics. American Journal of Orthodontics and Dentofacial Orthopedics. 1994;21 (1 ):33- 43.
Al-Saleh M, El-Mowafy O. Bond strength of orthodontic brackets with self-adhesive resin cements. American Journal of Orthodontics and Dentofacial Orthopedics. 2010; 137(4) 528-533.
Egan F, Alexander S, Cartwrignt G. Bond strength of rebounded orthodontic brackets. American Journal of Orthodontics and Dentofacial Orthopedics. 1996; 109(1 ):64-70.
Chung , Fadem B, Levitt H. Effects of two adhesion boosters on the shear bond strength of new and rebounded orthodontic brackets. Am J Orthod Dentofacial Orthop. 2000;118(3):295-9.
Verstrynge A. Clinical Comparison of an adhesive precoated vs. an uncoated ceramic bracket system. Orthod Craniofacial Res. 2004;7(1): 15-20.