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Now, for the first time ever, you
can chemically graft fresh composite to old composite - often with bonds
stronger than the cohesive strength of composite itself.
Presenting Add&Bond - the bonding agent
for cured composite.
Despite a reputation for repairability, old composite is not
that easy to bond to. In fact, studies suggest that add-ons made just
15 minutes after the initial cure generally adhere with only half the
strength of the original incremental build-up.
And if youre bonding to resin thats been in the mouth for
weeks, months, or years ... its a lot worse. Traditionally, the
best you could hope for when reparing an old restoration was some micro-mechanical
retention. Thats why composite add-ons often leak, discolor, or
pop off.
Now, with Add&Bond primer, bonding to old composite is not just finally
reliable
but also very, very easy.
Heres the entire technique
Using your handpiece, roughen the old composite to remove its most contaminated
outer layer. (If youre repairing an occlusal margin, youll
want to acid etch the adjacent enamel.)
Apply Add&Bond to the old composite. No need to cure at this stage.
Then simply place your fresh composite and light-cure as usual.
And not just for repairs either
Add&Bond primer dramatically improves the bond to virtually any cured
resin surface.
Brush it onto a white endodontic post to improve the bond of your core
resin.
If your patient loses a composite denture tooth, simply apply Add&Bond
and tack it in place with light-cure flowable composite or acrylic resin.
And its terrific for modifying temporary crowns and bridges. Those
new automix bis-acryls can be huge time savers, but theyre very
difficult to repair or remarginate. Unless, of course, you use Add&Bond.
Try it risk-free - with Parkells 3-month money-back trial.
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