Though sugar-free gum ended up being adopted quickly by larger players because its inventors did not get secure patent position, Pettman adds that Revolymer has worldwide patents for Rev7.

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For example, your doctor may recommend that you suck on a piece of sugar-free candy or chew sugar-free gum to relieve dry mouth, and use eyedrops to keep your eyes moist.

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The authorities are not yet ready to allow Singaporeans complete freedom to chew gum either: they have lifted a ban on imports, but only of the sugar-free sort, only to be sold in pharmacies and only to purchasers who register with the pharmacist first.

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