Re: Cracked tooth from grinding teeth
I also grind my teeth, and I have for decades. I'm 51 yrs old, and I've known I grind my teeth since I was in my mid-20s. It gets worse when I'm under stress. I do remember at one point in my life I was particularly stressed, and I was grinding my teeth so bad at night, my jaws would ache the next morning and I couldn't even open my mouth to eat, much less chew anything! Not long after that episode, I noticed a small lump at the base of one of my teeth. I totally freaked out, thinking I had some sort of mouth cancer! It was hard, but it didn't really hurt, and I made an appointment for the dentist. That tooth had at one time had a root canal, so I refered to a specialist. Turned out, I evidently ground my teeth so hard I cracked it, and the "stuff" they fill the tooth with after a root canal had leaked out and was the cause of the lump at the base of the tooth. I ended up loosing the tooth.
A tooth turning dark is cause for concern, and you should have it checked out. A dentist might be able to save it with a root canal, maybe not. But do get it checked out.
Also, if you grind your teeth at night, you can get a night guard to wear while you sleep. I have one I wear. My dentist made mine, but there are products you can buy at a pharmacy.