I bit down on a strange snack last night, which was basically dried ramyeon noodles, and broke a filling on my front tooth! This is a tooth that broke in a very similar accident involving a peanut several years ago, which actually chipped the tooth. My American dentist made a "filling", more like a repair, on the tooth which has lasted a few years. Come to think of it, I believe this broke once before in the USA and he re-repaired it one time.
So this morning, I arrived at my Korean dentist promptly at opening time 9:30am. I asked to have my tooth repaired and all my teeth cleaned. I discussed it with the dentist, and then they started cleaning. After the cleaning, the nurse said I had to come back next week for the repair, because Saturday was such a busy day. But the dentist saw me as I was about to walk out the door, and asked why was I leaving? He then spoke quickly to the nurse, and they turned me around and put me back in the chair. Total time - 1 hour, no appointment, about $140 final price.
P.S. He told me the repair would only last a couple of years, and I'll eventually need a crown on that tooth. I hope my bank account will be larger in two more years.