62. Matsumoto M, Tsuji M, Sasaki H, Fujita K, Nomura R, Na- kano K, et al. Cariogenicity of the probiotic bacterium Lac- tobacillus salivarius in rats. Caries Res 2005;39:479-483. 63. Pham LC, van Spanning RJ, Roling WF, Prosperi AC, Terefework Z, Ten Cate JM, et al. Effects of probiotic Lac- tobacillus salivarius W24 on the compositional stability of oral microbial communities. Arch Oral Biol 2009;54:132- 137. 64. Sookkhee S, Chulasiri M, Prachyabrued W. Lactic acid bac- teria from healthy oral cavity of Thai volunteers: inhibition of oral pathogens. J Appl Microbiol 2001;90:172-179. 65. Kang MS, Na HS, Oh JS. Coaggregation ability of Weis- sella cibaria isolates with Fusobacterium nucleatum and their adhesiveness to epithelial cells. FEMS Microbiol Lett 2005;253:323-329. 66. Kang MS, Chung J, Kim SM, Yang KH, Oh JS. Effect of Weis- sella cibaria isolates on the formation of Streptococcus mutans biofilm. Caries Res 2006;40:418-425. 67. Strahinic I, Busarcevic M, Pavlica D, Milasin J, Golic N, Topisirovic L. Molecular and biochemical characterizations of human oral lactobacilli as putative probiotic candidates. Oral Microbiol Immunol 2007;22:111-117. 68. Koll P, Mandar R, Marcotte H, Leibur E, Mikelsaar M, Ham- marstrom L. Characterization of oral lactobacilli as po- tential probiotics for oral health. Oral Microbiol Immunol 2008;23:139-147. 69. Comelli EM, Guggenheim B, Stingele F, Neeser JR. Selec- tion of dairy bacterial strains as probiotics for oral health. Eur J Oral Sci 2002;110:218-224. 70. Stamatova I, Kari K, Vladimirov S, Meurman JH. In vitro evaluation of yoghurt starter lactobacilli and Lactobacillus rhamnosus GG adhesion to saliva-coated surfaces. Oral Microbiol Immunol 2009;24:218-223. 71. Zahradnik RT, Magnusson I, Walker C, McDonell E, Hill- man CH, Hillman JD. Preliminary assessment of safety and effectiveness in humans of ProBiora3, a probiotic mouth- wash. J Appl Microbiol 2009;107:682-690. 72. Hillman JD, Mo J, McDonell E, Cvitkovitch D, Hillman CH. Modification of an effector strain for replacement therapy of dental caries to enable clinical safety trials. J Appl Micro- biol 2007;102:1209-1219. 73. Marcotte H, Koll-Klais P, Hultberg A, Zhao Y, Gmur R, Man- dar R, et al. Expression of single-chain antibody against RgpA protease of Porphyromonas gingivalis in Lactobacil- lus. J Appl Microbiol 2006;100:256-263. 74. Sliepen I, Van Damme J, Van Essche M, Loozen G, Quirynen M, Teughels W. Microbial interactions influence inflamma- tory host cell responses. J Dent Res 2009;88:1026-1030. July 2010 - Vol.4 75. Lahtinen SJ, Ahokoski H, Reinikainen JP, Gueimonde M, Nurmi J, Ouwehand AC, et al. Degradation of 16S rRNA and attributes of viability of viable but nonculturable probiotic bacteria. Lett Appl Microbiol 2008;46:693-698. 76. Hatakka K, Saxelin M. Probiotics in intestinal and non-in- testinal infectious diseases--clinical evidence. Curr Pharm Des 2008;14:1351-1367. 77. Twetman L, Larsen U, Fiehn NE, Stecksen-Blicks C, Twet- man S. Coaggregation between probiotic bacteria and car- ies-associated strains: An in vitro study. Acta Odontol Scand 2009;27:1-5. 78. Boirivant M, Strober W. The mechanism of action of probi- otics. Curr Opin Gastroenterol 2007;23:679-692. 79. Hojo K, Nagaoka S, Murata S, Taketomo N, Ohshima T, Maeda N. Reduction of vitamin K concentration by salivary Bifidobacterium strains and their possible nutritional com- petition with Porphyromonas gingivalis. J Appl Microbiol 2007;103:1969-1974. Haukioja 355 European Journal of Dentistry