u/Dear-Choice2097

So I have had a bit of sensitivity in my bottom first left molar and the top second along molar albeit the top one isn’t as bad, all of a sudden they’ve both flared up and been quite sensitive in the last few days during exam season (quite stressful maybe?) I’m going to the dentist to have a look ( should’ve gone a while ago but embarrassed). The teeth look normal from the outside but clearly some problems inside, to what extent can I know if I’m gonna need a root canal or filling. Thanks (of course the dentists will tell me but just trying to estimate cost prior)