It's important to keep your horses teeth healthy, it is recommended that horses over 5 years old should get the teeth checked annually, younger horses should get their teeth checked twice a year, this isn't always cheap so by reading the list of signs below this could help you decide if your horse needs a check-up from your vet or horse dentist.
Signs that your horse could need a check-up:
1. Dropping food while eating, difficulty chewing or excessive salivation.
2. Loss of body condition.
3. Large or undigested feed particles (long stems or whole grain) in manure.
4. Head tilting or tossing, bit chewing, tongue lolling, fighting the bit or resisting bridling.
5. Poor performance, such as lugging on the bridle, failure to turn or stop, even bucking.
6. Foul odor from mouth or nostrils, traces of blood from mouth.
7. Nasal discharge or swelling of the face, jaw or mouth tissues.
I hope this helps. Sorry if there is any spelling mistakes.