2024 年 22 巻 1 号 p. 37-45
Tooth surfaces are exposed to saliva, food and drink, and microorganisms in the oral cavity. Adhesions are formed on the tooth surface by saliva-derived components, microorganisms, and microbial products. These deposits can cause tooth discoloration, staining, caries, or periodontal disease. The acquired film is one of the adherents of the teeth and is composed mainly of organic nitrogen compounds found in saliva. While the acquired film protects the tooth structure from drying and demineralization, it can also become a springboard for bacteria to grow if the acquired film remains attached to the tooth surface for a long period of time. In addition to the purpose of preventing dental disease, removal of dental adhesions is important when prosthetic or orthodontic devices are bonded to teeth. Thus, the removal of acquired coatings is important in oral care and clinical practice. Therefore, it is necessary to accumulate research on the formation and removal of artificially acquired coatings on the tooth surface. In this study, we attempted to form an artificial acquired film by using two organic nitrogen compounds and attaching them to the surface of bovine anterior tooth enamel, observing the presence of nitrogen on the enamel that is not removed by rinsing and the changes in its microstructure.
