1. An oral composition comprising: from about 0.1 to about 5% by weight of propylene glycol； from about 0.05 to about 5% by weight of at least one or more of the active ingredients found in the magnolia extract or their synthetic analogues selected from magnolol, honokiol, tetrahydromagnolol, tetrahydrochonokiol, 5,5'-di-n-butylbiphenyl-2,2'-diol, isopropylmagnolol, isobutylmagnolol； orally acceptable carrier. 2. A composition according to claim 1, wherein at least one of said one or more active ingredients is present in an amount of 0.1% to 3% by weight of the composition. A composition according to claim 1 or 2, wherein at least one of said one or more active ingredients is magnolol. A composition according to claim 1 or 2, wherein at least one of said one or more active ingredients is honokiol. A composition according to claim 1 or 2, wherein at least one of said one or more active ingredients is tetrahydromagnolol. A composition according to claim 1 or 2, wherein at least one of said one or more active ingredients is 5,5'-di-n-butylbiphenyl-2,2'-diol. 7. A composition according to claim 1 or 2, wherein at least one of said one or more active ingredients is isopropylmagnolol. A composition according to claim 1 or 2, wherein at least one of said one or more active ingredients is isobutylmagnolol. The use of an oral composition for the manufacture of a medicament for the treatment or prevention of a disease or pathological condition of the oral cavity, where the composition contains1. Пероральная композиция, содержащая:от приблизительно 0,1 до приблизительно 5% по массе пропиленгликоля；от приблизительно 0,05 до приблизительно 5% по массе по меньшей мере одного или более из активных ингредиентов, найденных в экстракте магнолии, или их синтетических аналогов, выбранных из магнолола, хонокиола, тетрагидромагнолола, тетрагидрохонокиола, 5,5'-ди-н-бутилбифенил-2,2'-диола, изопропилмагнолола, изобутилмагнолола； иорально приемлемый носитель.2. Композиция по п. 1, где по м
