随着我国经济的飞速发展,在经济的带动下我国的个各行各业都呈现万紫千红的勃勃生机的局面。尤其是在我国的医学方面的进步更是被世界上任何国家都会敬佩。在我国医学上一种种叫做根尖周炎的症状和疾病,这种发病的几率在我国非常的普遍,由于人们不当的保护牙齿都会在成相应的症状。着这种疾病一班包括牙齿的疼痛,牙齿的松动等症状的发生,而感染源与根管微生物有关,值得我们探究。 With the rapid economic development in our country, all walks of life in our country have shown a flourishing vitality under the drive of the economy. In particular, medical progress in our country is even more admired by any country in the world. In our country a kind of medicine called periapical symptoms and diseases, the incidence of this disease is very common in our country, due to improper protection of the teeth will be in the corresponding symptoms. A group of this disease, including the pain of teeth, loose teeth and other symptoms, and the source of infection and root canal microorganisms, it is worth exploring.