Fake teeth and crowned teeth are two different things. Fake teeth are dentures, removable.
Crowned teeth still have viable tooth and root inside that can cause pain and infection.
Every root cannaled tooth needs a crown because when they take the nerve out, the tooth becomes brittle and needs held together.
A tooth with just a crown can still need a root canal or pulled. But the comms of 230 and #29 still make almonds tingle.