I have to respond to the idea that you don't need your back teeth...Not true at all.
Your front teeth are for cutting and tearing through your food. Back teeth are for chewing. If we didn't have our back teeth, we wouldn't be able to grind our food before swallowing. This would then lead to digestive problems from swallowing food not properly chewed.
I am glad to see that both of you are finding it important to save your teeth rather than pulling them.
I was a dental assistant for 12 years and it is amazing how many people are just concerned about their front teeth because they are the teeth they (and everyone else) can see. Each tooth has a purpose.
Libby