Abstract
The purpose of this
From Volume 5, Issue 4, October 2012 | Pages 122-124
The purpose of this
At present, the bonding of attachments, such as brackets and tubes, on the enamel surface is a routine clinical procedure, typically utilizing a resin composite adhesive.1,2 Since Buonocore first described the use of phosphoric acid for creating irregularities in the enamel surface to enhance mechanical locking, the effects of etching time3,4 and the phosphoric acid concentrate5 have been investigated to seek the most suitable method of enamel preparation.
Although the highest possible bond strength to tooth structure is desirable in restorative dentistry, orthodontic bond strength must satisfy two separate requirements; it must be sufficient to retain the brackets, but low enough to allow the easy clean-up of adhesives when the brackets are removed. Otherwise, greater bond strength may increase the risk of enamel fracture.6
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