Types of Crown

Type	Advantages	Disadvantages
Metal	Strongest type of esthetic crown. Doesn't fracture or chip as easily as alternative esthetic type crown. Usually most economical esthetic crowns.	Metal may be visible if tissue shrinks. Metal may be visible if tissue is thin. Metal may affect color of porcelain. Possible bluish tint of gum if gum tissue is thin and metal shows through.
Metal Crown with Porcelain Butt Joint	Esthetic No metal shows from front Strong	Metal usually visible from inside view only. Underlying metal may affect color of porcelain. Porcelain margin more susceptible to chipping than metal. More costly to make.
Porcelain or Cast Glass	Most esthetic throughout crown life. No metal shows.	Not as strong as ceramco metal crown. Margin may be more susceptible to chipping. More costly to make.
Full Metal	Strong crown. Very Economical.	Esthetically dissatisfactory