So my top back wisdom tooth has cracked and some broken off so I was left with this sort of hole in it. It was sharp rubbing against inside of my mouth! Saw my dentist yesterday as am in agony !The dentist shaved down the sharp bit as much as she could even saying it very difficult to reach. She said we can't fill out it and will have to wait to have it out ok nhs waitlist. I'm so worried about food getting into the tooth and can't brush it enough to reach it and it becoming infected. Is there anything anyone can recommend to help please ? Thankyou xx