After root canal with filling?!?!

After root canal with filling?!?

After a root canal, i had a filling. How do u notice if a filling fell off? Do i necesarily need a crown?! Can i brush on a root canaled tooth? My cheeks is somewhat swollen and inside feels stiff. Is that normal? How can i relieve that? It is quite uncomfortable especially when i have to laugh my cheek aches.
Next treatment i need to clean my teeth and then another filling. My dentist recommended further decisions after that next treatment whether crowning or not. Please give me the headups.

first off, it depends on the reason you had to have the root canal in the first place.
if the tooth had a big cavity in it, and it was too close the the nerve of the tooth, you may have some residual soreness.
if the nerve of the tooth was dead before they did the root canal, you can still have some soreness (only 2 or 3 days) due to all the pushing and the type of instruments that are used during a root canal.
yes, you can brush a tooth that has had a root canal. as far as the filling in it now, if it's white then it's a temporary filling and you will need to go back and have a final filling put in. if it's a silver color, then you already have that filling.
cheeks are sore because of being stretched out...also, you may have had some degree of infection at the tip of the tooth and it takes a day or two for that to clear up post root canal.

it is not necessary to have a crown put on a tooth with a root canal, but the likelyhood of you breaking your tooth off and needing an extraction is higher without it.

you can always refuse dental treatment...but please listen to your dentist