1. An oral care composition for rinsing an oral cavity, comprising: (a) at least about 0.025% by weight of a quaternary ammonium antimicrobial agent, (b) at least about 0.05% by weight a substantially water-insoluble volatile aromatic oil, and (c) an oral acceptable carrier containing water in an amount of at least about 50% by weight of the composition, the composition being a stable oil-in-water emulsion having a dispersed phase, containing oil droplets with an average particle size of from about 30 to 350 nm. 2. An oral care composition for rinsing an oral cavity according to claim 1, characterized in that it contains from about 0.025% to about 0.1% of a quaternary ammonium antimicrobial agent comprising one of cetylpyridinium chloride, cetylpyridinium fluoride, chloride tetradecylpyridinium, N-tetradecyl-4-ethyl pyridinium chloride, domifen bromide, benzalkonium chloride, benzethonium chloride, methylbenzetonium chloride, dodecyltrimethyl ammonium bromide, dodecyldimethyl (2-phenoxyethyl) ammonium bromide, benzyl chloride stearyl ammonium, quaternized 5-amino-1,3-bis (2-ethyl-hexyl) -5-methyl hexahydropyrimidine, lauryl trimethylammonium chloride, kokoalkiltrimetilammoniya chloride, cetyltrimethylammonium bromide or chloride, di-izobutilfenoksietil dimetilbenzilammoniya or their smes.3. An oral care composition for rinsing an oral cavity according to claim 1, characterized in that it contains from about 0.05% to about 5% by weight of a substantially water-insoluble volatile aromatic oil. Composition1. Композиция для ухода за полостью рта, предназначенная для полоскания полости рта, содержащая:(a) по меньшей мере, приблизительно 0,025% по массе антимикробного агента на основе четвертичного аммония,(b) по меньшей мере, приблизительно 0,05% по массе, по существу, нерастворимого в воде летучего ароматического масла, и(c) приемлемый в полости рта носитель, содержащий воду в количестве, по меньшей мере, приблизительно 50% по массе композиции,при этом композиция предст
