J. Orthod.
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British Journal of Orthodontics, Vol 22, 319-323, Copyright © 1995 by British Orthodontic Society

ARTICLES

An ex vivo study of self-, light-, and dual-cured composites for orthodontic bonding

AE Sargison, JF McCabe and PH Gordon
Department of Child Dental Health, Dental School, Newcastle upon Tyne, UK.

It was postulated that using a dual-cured composite to bond orthodontic brackets could result in bond strengths comparable with those of chemically-activated materials and higher than those for light- activated materials. The shear bond strength of four composite resins used to attach mesh-backed orthodontic brackets was measured at 24 hours and following mechanical insult in the ball-mill. Analysis of variance and an SNK range test showed that at 24 hours Dual-cured Porcelite gave a significantly higher mean bond strength than the other materials (P < 0.05). However, following ball-milling the mean bond strength for Right-on was apparently significantly higher than that of the other materials. (P < 0.05). In this study, the mode of bond failure is also analysed and the use of Weibull analysis in bond strength testing is described.


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R. A. Linklater and P. H. Gordon
An Ex Vivo Study to Investigate Bond Strengths of Different Tooth Types
J. Orthod., March 1, 2001; 28(1): 59 - 65.
[Abstract] [Full Text] [PDF]

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S. Sunna and W. P. Rock
An Ex Vivo Investigation into the Bond Strength of Orthodontic Brackets and Adhesive Systems
J. Orthod., March 1, 1999; 26(1): 47 - 50.
[Abstract] [Full Text] [PDF]


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