receding gums

I have receding gums, especially the lower front. I am afraid I will loose some teeth. I switch to making my own toothpaste with baking soda and salt and hydrogen peroxide but it is too strong and made my gum problems worse. I assume this would be good for my sensitive gums. Would it help receding gums grow back? This brush looks good but it is very expensive. Any idea how long you should go between replacing it? Tweet