1. Composition for improving oral health, containing a therapeutically effective amount of beneficial bacteria, in which these beneficial bacteria include at least one type of bacteria, usually selected from the group consisting of: i) Streptococcus salivarius； ii) Lactobacillus reuteri； iii A) Lactobacillus plantarum 299 or 299v； iv) Streptococcus salivarius K 12； v) Lactobacillus reuteri ATCC55730； vi) Lactobacillus johnsonii La 1； vii) Lactobacillus rhamnosus GG； viii) Streptococcus thermophilus NCCloclocloclocl61 1561 ) Lacteola. 2. The composition according to claim 1, in which these beneficial bacteria are represented by at least one type of bacteria, usually characteristic of the microflora of the oral cavity. The composition according to claim 1, containing bacteria that are inactivated. The composition according to claim 1, which is a lozenge, candy, sachet or a dissolving film. The composition of claim 1, further comprising a topical compound. The composition of claim 1, further comprising a thickener. A composition for reducing the incidence of aspiration pneumonia, comprising a therapeutically effective amount of beneficial bacteria, wherein said beneficial bacteria include at least one type of bacteria typically selected from the group consisting of: i) Streptococcus salivarius； ii) Lactobacillus reuteri； iii) Lactobacillus plantarum 299 or 299v； iv) Streptococcus salivarius K12； v) Lactobacillus reuteri ATCC55730； vi) Lactobacillus johnsonii Lal； vii) Lactobacillus rhamnosus GG； viii) Streptococcus thermophilus Nactloclocloclocl61； 8. The composition according to claim 7, wherein said beneficial bacteria are represented by at least one type of bacteria, typically characteristic of the microflora of the oral cavity. The composition according to claim 7, containing bacteria that are inactivated. The composition according to claim 7, which is a lozenge, l1. Композиция для улучшения здоровья полости рта, содержащая терапевтически эффективное количество пол
