Scientists have proved that the condition of the oral cavity and dental health largely determined by environmental conditions than the genes of the parents.
In experiment took part fraternal and identical twins, separated by experts groups. One of the volunteers took the DNA sample on the study of microbes. After comparing experts microflora saliva participants had found them very different. The results were not influenced by common genes participants. In addition, it was found out that the farther the place of residence of the twins placed in relation to each other, the less similarity in their microflora of the oral cavity.
As stated by the researchers, survey data allow us to conclude that the condition of the teeth, mainly influenced by the diet and lifestyle of the person, not his genes.