Department of Pediatric Dentistry, Faculty of Ahmet Keleşoğlu Dentistry, Karamanoğlu Mehmetbey University, Yunus Emre Campus, Karaman, Turkey.
BMC Oral Health. 2023 Aug 13;23(1):565. doi: 10.1186/s12903-023-03267-6.
Systemic fluoride intake is predominantly derived from drinking water and tea. It's been noted that water and tea containing fluoride, within the boundaries set by the World Health Organization, can lessen the prevalence of dental caries. A review of the literature did not uncover any study that has examined the impact of fluoride in bottled drinking water and tea on enamel of deciduous and permanent teeth. Thus, we assessed the effects of fluoride present in seven different brands of bottled water from distinct geographical regions of Turkey, and a type of tea produced and packaged in Turkey, on the enamel of deciduous and permanent teeth.
Fluoride analysis was performed on drinking water sourced from seven different regions of Turkey and a brand of tea brewed with these waters. The tea was harvested and packaged in Turkey. The analysis was conducted using an ion-selective electrode. In total, 112 tooth enamel samples (56 deciduous molars and 56 permanent molars) were randomly divided into eight distinct groups. These were kept in water for 15 min and tea for 15 min every day for a month. The eighth group was treated with fluoride gel prior to tea and water applications. The amount of fluoride in the tooth enamel structure was evaluated using an SEM EDX device before and after the experiment.
Statistically significant differences were found in fluoride content of enamel between water brands and tooth type (deciduous and permanent teeth). Fluoride levels were higher in the enamel of deciduous teeth than in permanent teeth.
Regular exposure of enamel samples to black tea and water led to an increase in fluoride levels in the enamel; thus, regular consumption of black tea and fluoride water could help reduce the prevalence of dental caries.
人体氟的摄取主要来自饮用水和茶。世界卫生组织规定，饮用水和茶中的氟化物含量在一定范围内可以降低龋齿的发生率。我们查阅文献后发现，尚无研究探讨过瓶装饮用水和茶中的氟化物对乳牙和恒牙釉质的影响。因此，我们评估了土耳其不同地区的 7 个品牌的瓶装饮用水和一种在土耳其生产和包装的茶中氟化物对乳牙和恒牙釉质的影响。
我们对来源于土耳其 7 个不同地区的瓶装水和用这些水冲泡的茶进行了氟化物分析。茶叶在土耳其采摘和包装。采用离子选择性电极进行分析。共随机抽取 112 个牙釉质样本（56 个乳牙磨牙和 56 个恒牙磨牙），分为 8 组。这些样本每天在水中浸泡 15 分钟，在茶中浸泡 15 分钟，持续 1 个月。第 8 组在应用茶和水之前先用氟凝胶处理。用 SEM EDX 设备在实验前后评估牙釉质结构中的氟化物含量。
水品牌和牙齿类型（乳牙和恒牙）之间的牙釉质氟化物含量存在显著差异。乳牙釉质中的氟化物含量高于恒牙。
牙釉质样本经常接触红茶和水会导致氟化物水平升高，因此经常饮用红茶和含氟水可能有助于降低龋齿的发生率。
