How did you crack your tooth? This dental problem is commonly caused by the following:
Grinding/clenching the teeth can cause fractures or cracks on the teeth.
Weakened by a filling or cavity
A tooth with a cavity or filling can be weakened, increasing its risk of being cracked more easily.
Weakened by root canal
A tooth treated with root canal may be more susceptible to cracking.
Biting on hard food items
Biting (either accidentally or on purpose) on hard items such as nuts, ice, hard candies, or meat bones can cause the teeth to crack.
Using teeth as tools
A cracked tooth can result from using the teeth to open a bottle, or to tear open a package.
Trauma to the mouth
Trauma and injuries to the mouth area can cause a tooth to be cracked.
Severe gum disease (periodontitis) can weaken and wear away the support protecting a tooth. When this happens, the tooth will be more prone to cracks and other damage.