A five year old child who has lost all of his or her molars needs to have a gap retainer made to keep his or her missing teeth in place.
Children six years old, the first permanent molar teeth began to erupt, five-year-old child molar caries missing, need to seek medical attention as soon as possible to utilize the movable gap retainer, to maintain the position of the missing teeth, to prevent the permanent teeth eruption teeth shifting growth, jaw deformity. If the child has been completely unable to exercise chewing function, you can consider making movable dentures to wear temporarily.
Children with dental caries need to seek medical attention as soon as possible, using specialized instruments to remove decayed tooth tissue, and then use resin fillings to limit the continued downward progression of caries and preserve the teeth.