L.H.
I am a dental hygienist and I also have a 6 year old losing teeth. It is very common for the bottom 4 teeth to come out before the top one's. Unfortunately when baby teeth don't have much spacing it is highly likely the child will need braces when the adult teeth come in. My son's teeth are very close together and he does not have room for his new teeth and they are already crowding. Fortunately with new findings in dentistry expansion is quite common. It is usually not painful for adult teeth to come in for kids like it is when baby teeth come in. Now a days they place expanders on the top and bottom teeth around age 7 or after their 6 years molars have erupted and the two top teeth have exfoliated. My son will need this as well. My best advice it to save money and plan on orthodontics in the next year or two because it is pricey but well worth it!! If expansion does not occur then in the future he may need permanent premolars removed to make room for all his adult teeth and expansion is much easier and better for long term! Ortho is done in two phases now. Expansion around age 7 or 8 and brackets usually age 12 but really depends on each case. Hope this helps!!