Can I get free dental treatment over 18

I am 18 years old and have just finished my A-Levels. A week or two ago I developed a toothace, I have tried to buy different toothpastes and mouthwashes to help however it hasn't made much difference.
I think I may need to see a dentist, which I could get through an emergency appointment, but would it still be free because I am over 18? It says on the NHS website you can get dental treatment if you are under 19 and in full time education. However, because I have just finished Year 13 would this still count? Or is there a way to try and get around it by saying I am still attending college, I have applied to university in September and selected a firm/insurance choice, would that still count as full time education?