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Medical Forum / General / Dentistry / May 2006Act Reach's new Restoring mouthwash: good?
Hey everyone! I just heard about ACT Reach's new Restoring mouthwash. http://reachact.com/act/products_Restoring.html They've been doing lots of promoting lately. I didn't think it was possible to restore enamel, and they are claiming to be the FIRST mouthwash to actually restore enamel. Is this claim valid? Too early to tell? I'm sure they got FDA approval to say that. Thanks everyone! :) > Hey everyone! > [quoted text clipped - 10 lines] > > Thanks everyone! :) But... It's just a fluoride rinse. I don't see anything new here--but the advertising! Steve What about Prevident 5000. Can that restore enamel, ie. re-mineralize enamel? My perio said it could. I've used Prevident before. It's just toothpaste with lots of fluoride. >From my own research, it looks like restoring enamel is IMPOSSIBLE with current technology: "After destruction of enamel from decay or injury, neither the body nor a dentist can restore the enamel tissue." http://en.wikipedia.org/wiki/Tooth_enamel Anyone have any additional information about any of this? > I've used Prevident before. It's just toothpaste with lots of > fluoride. [quoted text clipped - 8 lines] > > Anyone have any additional information about any of this? There is an equilibrium between mineralization and demineralization at the tooth surface. Early demineralization can be reversed, generally by diminishing the rate of demineralization. Some of the new toothpastes claim to increase the mineralization side of the equilibrium, and some agents are used this way. Duraphat (5% NaF varnish) is used this way. High fluoride gels such as Prevident aim at the same thing. Once there is actual cavitation, the enamel is gone. Steve At the very least I know its possible to restore enamel under laboratory conditions. I read an article published in either nature or pubmed, where some EU scientists managed to get calcium to reassemble into damaged latices. It was about a year ago and wasn't based around oral hygeine but I immidiatly thought about it being adapted. > At the very least I know its possible to restore enamel under > laboratory conditions. I read an article published in either nature or > pubmed, where some EU scientists managed to get calcium to reassemble > into damaged latices. It was about a year ago and wasn't based around > oral hygeine but I immidiatly thought about it being adapted. I can't discount this. But remember that mature enamel is something like 99% inorganic. However, these are not pure hydroxyapatite crystals forming randomly. They are prisms set up between the ameloblastic processes. If you have a model of decalcification (not to say caries) in a petrie dish, it is easier to keep these ameloblastic processes intact. That wouldn't necessarily be possible in vivo. Steve |
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