When your dead father gave you a toothpick, it was obvious that he wanted you to take some time to pick out some residue from your teeth. That is to remind you to visit him more often. Don't spend too much money, just save some from your teeth as a sacrifice.
Modern people are not superstitious, and dreams are the reflection of deep thoughts. This dream proves that you subconsciously want to worship your father more. Use this form to remind you.