Zinc helps the makes the adhesive stick better. What are the adverse effects? High levels of zinc can deplete other minerals like iron and copper. Depletion of copper can lead to neurological disorders. The suspicion of ingestion of high levels of zinc is the cause of several lawsuits against manufacturers of zinc containing denture adhesives.
See ABC Nnews video on the investigation.
After researching the products, I went shopping to see what was on the shelves of three local stores. Intersteingly only three manufacturer's brands and the generic store brand were on the shelves. These were Polygrip (zinc free by Smith Kline Galaxo), Fixodent (zinc by Proctor & Gamble) and Sea Bond (zinc free by Sea Bond).
Both Fixodent and Polygrip dominated the shelf space with several variations of their products taking up 90% of the shelf space. The store brand was zinc free, and the label went to great lengths to point out that it was not manufactured by P & G. I have listed below several denture adhesives and categorized them by whether they contain zinc or not.
Zinc free adhesives
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Cushion Grip
dushion Grip paste is manufactured by Schering-Plough, and is zinc free. It is not your typical paste adhesive and has special instructions to apply and remove
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Dentrio
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Dentrio adhesive powder is manufactured in Indi,a and distributed by MDM Corporation. It is zinc free.
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Effergrip
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Effergrip paste is manufactured by Johnson and Johnson, and is zinc free.
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Endslip |
Endslip liners are manufactured by Durasol, and are zinc free.
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Miracle Grip |
Miracle Grip, manufactured by U.S. Medical, is a polymer sheet and does not appear to contain zinc.
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Perma Grip |
Perma Grip, Manufactured by Lee Pharmaceuticals, is zinc free.
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Poly Grip Powder |
Polygrip Powder, manufactured by Galaxo Smith Kline, has been reformulated with no zinc.
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Polygrip paste
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Polygrip paste, manufactured by Galaxo Smith Kline, has been reformulated with no zinc.
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Polygrip Strips |
Polygrip Strips, manufactured by Galaxo Smith Kline, contains no zinc.
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Protefix powder, paste, liners |
Protefix products, manufacturer unknown but distributed by an Egyptian importer. It appears to use alginate as the adhesive agent, and contain no zinc.
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Rigident Powder |
Rigident Powder, manufactured by Church & Dwight, is zinc free.
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Sea Bond |
Sea Bond liners are manufactured by Sea Bond Inc. are zinc free.
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Secure liners |
Secure liners, manufactured by Den Tek are zinc free, but require special instructions for application and removal. They can last for days worth of wear.
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Secure denture paste liner |
Secure denture paste liner, manufactured by Den Tek is zinc free, but require special instructions for application and removal. They can last fro days worth of wear.
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Staydent denture paste
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Staydent denture paste, manufactured by Mercer Group Limited, is zinc free.
Dental adhesives with unknown ingredients
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Orafix |
Orafix was originally manufactured by Smith Kline Beecham, but may have been sold. Ingredients unknown.
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Klutch adhesive powder |
Klutch is manufactued by The Oakhurst Company. Ingedients unknown.
Adhesives that contain zinc
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Fixodent paste
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Fixodent paste is manufactured by Proctor & Gamble, and contains zinc.
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Fixodent powder |
Fixodent powder is manufactured by Proctor & Gamble, and contains zinc.
Ina future article, I will advise on alternatives to adhesives.