Crowns vs Veneers

Dental crowns, like veneers, cover imperfections in your smile. Crowns are often used in cases where teeth are more damaged and/or discolored while veneers are for more aesthetic reasons. 
The main difference between the two is the amount of tooth each covers. Crowns cover the whole tooth in its entirety while veneers cover only the front surface of the tooth.
A crowns thickness is also much greater than that of a veneer and in turn needs more trimming thus making the process irreversible. 

Care

A dental crown is much like a natural tooth, and requires the same maintenance.
Brush / Floss twice a dayFollow preventative care tipsAvoid very hard / sticky foods
Please note: Temporary dental crowns require more maintenance and care compared to permanent dental crowns. 

Benefits

You may be considering dental crowns if you have a tooth that is weak, discolored, or worn. Dental crowns can also aid in other dental procedures, such as bridges, fillings, implants, or cosmetic modifications.
Dental Crowns:
-Support a damaged tooth-Hold together a cracked tooth-Anchor a dental bridge-Add length or width to worn, damaged teeth-Mask discolorations-Cover a dental implant