A cracked tooth can arise due to biting hard objects and pressure from teeth grinding. At times, heavy tooth fillings also weaken the tooth’s integrity. Especially a tooth filled with amalgam is at higher risk of cracking. Chewing on ice or hard candy, biting on hard food or nuts, blows to the mouth due to an accident or fall cause the teeth to crack. Call 02 9621 5566 to talk to the 24 hour dentist Blacktown.