Abstract: A method for transforming food sugars, which acts in two ways: directly and indirectly. The method is characterised in that the main direct action consists in inhibiting glycolysis by transforming the cariogenic polyoses into non-cariogenic polyols (for example, sorbitol); the indirect action consists in the use of products derived from the polyose degradation as substrates by the inventive enzymatic system so as to reinforce prevention of plaque formation, through five mechanisms: stimulating saliva flux with the polyols; reinforcing the saliva antibacterial power by activating the physiological lactoperoxidase/by-pothiocyanate system with hydrogen peroxide; decreasing the number and pathogenicity of the bacterial environment stabilizing &dgr;-lactones, which are not bacterial substrates for plaque formation; remineralizing the enamel by stabilizing the calcium phosphate solution with sorbitol. The invention is applicable to bucco-dental hygiene.

Abstract: The invention concerns a method for transforming food sugars, which acts in two ways: directly and indirectly. Said method is characterised in that the main direct action consists in inhibiting glycolysis by transforming the cariogenic polyoses into non-cariogenic polyols (for example, sorbitol); the indirect action consists in the use of products derived from the polyose degradation as substrates by the inventive enzymatic system so as to reinforce prevention of plaque formation, through five mechanisms: stimulating saliva flux with the polyols; reinforcing the saliva antibacterial power by activating the physiological lactoperoxidase/hypothiocyanate system with hydrogen peroxide; decreasing the number and pathogenicity of the bacterial environment stabilising &dgr;-lactones, which are not bacterial substrates for plaque formation; remineralizing the enamel by stabilising the calcium phosphate solution with sorbitol. The invention is applicable to bucco-dental hygiene.

Abstract: An anti-theft device for a pneumatic-tired vehicle, of the kind comprising means (4) for automatically deflating a tire (5) of the vehicle and deflating the tire (5) when the device is actuated by control means (2) and the vehicle is in motion, the deflating means (4) being moved by the centrifugal force of inertia when the corresponding wheel (3) rotates whereas they are inoperative in other cases, characterized in that the deflating means (4) comprise movable means for closing at least one orifice (7) through which air under pressure can escape from the tire (3), the movable closing means normally sealing the orifice (7) when the device is inoperative and/or the wheel (3) is stationary, whereas they unclose the orifice (7) and allow air to escape when the device is actuated and as soon as the centrifugal force of inertia reaches a sufficient value to move them.