Points to note during mixed dentition stage

  • At about the age of 6, the first permanent molar will erupt behind the four ends of deciduous teeth; it is also called the 'six-year molar'. At this time, parents should remind their children to clean the 'six-year molar' by brushing to the very back tooth with a toothbrush and fluoride toothpaste thoroughly. This could avoid gum inflammation and tooth decay on the 'six-year molar'.

    Photograph showing the position of two lower six-year molars.
  • Generally speaking, deciduous teeth will exfoliate by themselves. There is no need to extract them because early loss of deciduous teeth will lead to irregular permanent teeth.
  • Teeth will become loose during mixed dentition stage. There may be mild bleeding during brushing. Parents should advise their children to keep good oral hygiene, including the area around the loose deciduous teeth, to avoid gum inflammation.