Can cavities cause tooth ache?

I just got a deep cavity filled last week. I was having severe, sharp toothaches whenever I drank cold water. The dentist fixed it in half an hour and the pain is completely gone now.

Haan, toothaches are almost always due to cavities. Go to a government dental hospital where the checkup and basic fillings are very cheap. Don't delay, or you'll have to pay for a costly root canal later.

Yes, cavities are the primary cause of toothaches as the decay reaches the sensitive inner parts. Just like managing thyroid requires regular tests, keeping your teeth healthy needs regular dentist checkups before pain starts.

My tooth has started hurting a little bit when I eat sweet things. Does this mean I definitely have a cavity, and will it require a big treatment like a root canal?

Yes, cavities are the most common cause of toothaches. Please don't worry, a quick visit to a local dentist will help resolve the pain easily.

Of course, a cavity will eventually cause a toothache once the decay goes deep enough. Don't keep taking painkillers at home. Get it filled by a professional dentist before the infection spreads.