4 yr hoary filly first time getting teeth floated?

I am working with a 4 year old Arabian filly and she is getting her teeth done in something like 3 weeks.
She has never had this done before. dislikes strangers, hate being dewormed, gives the farrier trouble, and gave the vet some much trouble we nearly didnt get her Rabies shot done.
She does not bit well and loves to rear when she is sad.
Never the less she needs this done.
She trusts me and will relax when all around her is tranquil and if she is in her stall.
Are there anythings I can do to assist her prepare for this?
Im just worried that the dentist wont be able to do this or someone will get hurt.
Sedating her would be equally as sturdy and more stress unless there is something oral I can give her.
I guess im just looking for some reassurance that this is not impossible.
I understand that sedating her would be stressful but I really think this is safer for her, you and the vet.
I own a great equine dentist, as long as you can put a halter on she can do the horse. The ones i had done at the rescue some have never had their teeth done ever and she have no problem doing them. You may be stress more than the horse will. My person didn't drug the horses and she did fine.
Answers:    The dentist cannot work on a horse moving adjectives over the place. The best thing for the horse and everyone else it to tranquilize her. If the dentist is not also a vet you will need a vet out there to tranq her.
Some dentists will drug the horses for you but I don't trust them to do so.
I would find her ready by touching her mouth and pretending your checking it and if she cooperates then offer her a treat.
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