I have sharp pain when chewing and is particularly sensitive when I have chocolate or lollies, why?
It is likely that you have a cracked tooth. This is caused by either heavy biting on hard foods, heavy grinding (also known as bruxism) or your teeth may have suffered trauma or had a large filling in the past. If left unchecked, the crack may propagate and involve the pulp, nerve and tooth root. This often means that you may need a crown to reinforce the tooth.