I have had one taken out last month, and I need the other one taken out within a year. I'd never had any dental work done before and was really really worried, especially as they were impacted so growing horizontally basically. It was fine, it wasn't pleasant obviously, but it was over within about 15 minutes, and I only needed to take pain killers for the rest of that day. If you want to ask anything feel free I really would recommend getting them taken out though, from my experience it's nothing to worry yourself over.
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