Even with dental Insurance or a Dental Discount plan you will still have cost for the procedures you are describing. Dental Insurance or Plans are designed to help cut your cost. Your parents may be able to buy dental insurance or plan just for you. If that is not a choice for you then you may want to look into seeing if you have any dental schools that you can go to to have the work done. Since they are schools they will either be free or low cost.
I hope you find what you are looking for and good lucky