Most of the time, molars will crack because you chewed on something you shouldn't have chewed on. This can include really hard foods or even ice. However, that is not the only source of molar cracks that you may encounter.
If you suffer from bruxism, which is clenching and grinding your teeth, you could also bite down on something relatively soft and end up with a cracked molar.
While biting can be the top cause, it is not the only cause. Because the molars take on so much pressure when we chew, they are susceptible to a lot of wear and tear. This can cause you to chew on regular, everyday foods and end up with a tooth that has cracked. You can also get injured which can result in a cracked or completely broken tooth.
The type of treatment you get for a cracked molar is going to depend a lot on how the fracture looks to the dentist. If the crack is purely cosmetic, you will likely get the tooth polished up so it isn't sharp and be on your way. If the crack is big, you may need a crown or a root canal. If the tooth is completely cracked in half, you may need an extraction.
If you believe you have a cracked molar, go in and see your dentist right away. The sooner you go in, the more options the dentist is going to have to repair your tooth. When the tooth pain is not constant, make sure you pay attention to where the pain is, and what causes it, so you can tell the dentist. Also, avoid chewing on that area until you have seen the dentist for a diagnosis.
Please contact our office if you have any questions about bruxism's effects on your teeth.