1. A denture adhesive composition comprising:! a) the denture adhesive component and! b) a viscosity index improver selected from the group consisting of polymethacrylates, olefin copolymers, hydrogenated styrene-diene copolymers, styrene polyesters, poly (n-butyl vinyl ether), poly (styrene-maleic anhydride copolymer), polyum (alkyl copolymer copolymer vinyl acetate), alkyl polystyrene, poly (t-butyl styrene) and combinations thereof. ! 2. The denture adhesive composition according to claim 1, wherein the viscosity index improver is in an amount of from about 0.001% to about 90.0% by weight of the denture adhesive composition. ! 3. The denture adhesive composition of claim 2, wherein the denture adhesive component is in an amount of from about 10.0% to about 99.0% by weight of the denture adhesive composition. ! 4. The denture adhesive composition according to claim 3, wherein the denture adhesive component is selected from the group consisting of cellulose, cellulose derivatives, starch, starch derivatives, saccharide, saccharide derivatives, polyethylene oxides, polyethylene glycols, polyvinyl alcohols, carrageenan, alginates, alginates xanthan gum, guar gum, gelatin, algin, tragacanth, chitosan, acrylamide polymers, carboxypolymethylene, polyamines, polyquaternary compounds, polyvinylpyrrolidone, AVE / MA, AVE / MA salts, mixed AVE / MA salts, by Limeric acids, polymeric salts, polyhydroxy compounds and their combinations. ! 5. The denture adhesive composition according to claim 3, in which the denture adhesive component contains AVE / MA, salt AVE / MA, mixed salt AVE / MA, sodium1. Зубопротезный адгезивный состав, содержащий: ! a) зубопротезный адгезивный компонент и ! b) присадку, улучшающую индекс вязкости, выбранную из группы, состоящей из полиметакрилатов, олефиновых сополимеров, гидрированных стирол-диеновых сополимеров, стирольных полиэфиров, поли(н-бутилвинилового эфира), поли(сополимера стирола и малеинового ангидрида), поли(сополимера алкилфумарата