口腔健康是人体健康的一面镜子,是全身健康的重要组成部分,牙齿洁白整齐,完好无损,不仅是健康的表现,更是人类文明的标志。牙齿为何会变色简单说来,引起牙齿变色的原因有:1.四环素牙:儿童7-8岁以前,如果经常服用四环素类药物,可造成四环素牙,轻者牙齿呈现灰褐色,重者还会导致牙齿硬组织缺损。因此, Oral health is a mirror of human health and an important part of the health of the whole body. The teeth are neat and tidy and intact, which is not only a manifestation of health but also a symbol of human civilization. Why teeth will change color In short, the causes of tooth discoloration are: 1. tetracycline teeth: Children 7-8 years old, if you regularly take tetracycline drugs, can cause tetracycline teeth, light teeth appear gray brown, heavy cases will Lead to tooth hard tissue defects. therefore,