These are the things you need
Add 1/3 cup of lemon juice. If your teeth are sensitive then you may want to use a little less
Add a little but under 1/3 cup of baking soda
Put the lemon juice and the baking soda together in the cup and mix. Don't be alarmed if it bubbles over just keep mixing!!:)
Dip q tip in mix and apply to teeth!!
After you have applied mixture to teeth brush your teeth!! Do not do this every night!! Do once every two or three weeks.