Do teeth with porcelain crowns still need deep tooth cleaning?

Yes: A porcelain crown covers the exposed are of the tooth. A deep tooth cleaning goes beyond the crown and below the gum onto root surface.

Yep: Porcelain crowns need to be treated like your natural teeth.

Absolutely!: Teeth with crown not only need periodontal check up but regular visits to the dentist can monitor any leakage from it's margins so you can keep your teeth for the rest of your life :).

Yes: A tooth with a crown can become decayed, get gingivitis, periodontitis, or any other dental problem that an uncrowned tooth can develop. You should care for a crowned tooth the same as your other teeth with your homecare as well as regular visits to your dentist and hygienist. With proper care, it can last a long time and do as well as the rest of your teeth.