Porcelain Veneers Vs Dental Crowns?

There are several things to consider when deciding how to restore a tooth. If the tooth in question has never been treated for anything previously, the choices are more varied. However, if a tooth already has a crown, it will always need a crown.
Veneers are more conservative than a full coverage crown. Most of the time, a veneer covers just the front and sides of a tooth, leaving the back part (tongue side) alone. A veneer can be considered more conservative than a crown when appropriate.
Quite often a veneer and a crown are made out of the same material, so they can appear very similar. Sometimes a restoration needs added strength to withstand chewing or normal wear and tear, which may require a base layer of material that is extra strong (a framework). Sometimes this creates a compromise in looks, so a trained dental professional may need to help make the decision about what is best for your situation, so that your specific goals can be met.

Veneers are best, less invasive, more predicable and long lasting as compared to the dental crowns or anything else.