I think it is not a must because at the end of the day it comes down to the individual horse
Agree with the below. Most normal only need their teeth checking once a year, that's what my 23 and 11 year old have. If the horse has a poor mouth then I know the amount can differ but that is under different circumstances.
I don't think all senior horses need that. Normally once a year is normal for most horses. My one horse is 32 and he has great teeth still and doesn't need his teeth often. Depends on the horse I'd talk to your vet.
Not only senior horses. I advise to get teeth checked yearly for all horses. A lot of unnecessary discomfort or pain can be averted by regular checkups and dental care. Sharp hooks make it difficult to eat, causes damage or even infection to soft cheek tissue, and the list goes on. A healthy horse is a happy horse.
We have always scheduled a yearly dental visit for our horses. Horses can experience a lot of health issues if their teeth are too sharp and they can’t chew properly. It could lead to weight loss and other issues. In addition it can be painful for them to have a bit in their mouth with a bad tooth.
Checking teeth is very important. They can have sharp points that can hinder them eating or cracks in teeth