Is it normal for a five-year-old child to change teeth?

It is normal for children to change teeth at the age of 5 years. Children begin to erupt deciduous teeth from 5-6 months old, complete the eruption of deciduous teeth at two and a half years old, gradually widen and lengthen jaw bones with mastication stimulation and growth development, replace deciduous anterior teeth with permanent tooth germ below at the age of 5 years old, replace them with transverse teeth, and erupt first permanent molars far away from second deciduous molars. Due to the deep gap between the newly erupted molars, it is easy to retain food residues and soft dirt, coupled with children's happy sweets, brushing is not easy to lead to caries, it is best to close the pit and fissure. Some children will start to erupt permanent teeth at the age of 5.5-6, which is also a normal phenomenon.