Has your patient lost a deciduous tooth early?
Have you removed a deciduous molar ie: say a D or an E early, due to caries or a toothache and wondered how to do a space maintainer?
It has been my observation, after seeing thousands of children and teenagers, that space loss can occur with either loss of a D or an E. This was contrary to what I was taught in dental school, that it would only occur with loss of a deciduous 2nd molar ie: an E and a space maintainer was not needed, if a D was lost. I felt the need for a easy to follow flow-chart that would make selection of a simple retainer appliance easy to follow. I hope this helps you, as it has helped me.