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International Journal of Computerized Dentistry

Year 1998
Volume 1 , Issue 1

Pages: 31 - 35

Establishment of a Simple Artificial Mouth Model for Bacteriological Experiments


Objective: A simple artificial mouth model was established to study the demineralization of tooth enamel caused by various plaques. Methods: The artifical mouth model consisted of a special glass culture chamber, wax-wrapped tooth crowns, a nutrient liquid and artifical saliva cycle system, and a gas and constant temperature incubator. The development of dental plques of Streptococcus mutans, Neisseria, and Veillonella were studied and the demineralization of dental enamel caused by the plaques was observed in the artifical mouth model. Results: The results showed that the enamel demineralization in the artificial mouth model resembled the natural carious lesion. The development of dental plaques of Streptococcus mutans, Neisseria, and Veillonella were similar to that found in vivo. The demineralizationj caused by three-bacteria plaque was less than that caused by two-bacteria plaque and the demineralization caused by the latter was less than that caused by one-bacteria plaque. Conclusions: The results indicated that the simple artifical mouth model simulates the oral environment. A decrease in demineralization caused by Streptococcus mutans in the presence of Neisseria and Veillonella has been demonstrated in the artifical mouth model.


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