Dentist wont numb me for cavity?

so this is my first ever cavity and I'm horrified my dentist said that they aren't going to numb it because its just small enough. which i don't mind I'm even more scared of needles, i just need to know how bad its gonna to hurt, i don't want my dentists sugar coated response. so the internet it is. show more so this is my first ever cavity and I'm horrified my dentist said that they aren't going to numb it because its just small enough. which i don't mind I'm even more scared of needles, i just need to know how bad its gonna to hurt, i don't want my dentists sugar coated response. so the internet it is.
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