Basic types of esthetic crowns

type	advantages	disadvantages
Ceramo - metal	Strongest type of esthetic crown Doesn't fracture or chip as easily as alternative esthetic type of crown Usually most economical esthetic crowns	Metal may be visible if tissue srinks Metal may be visible if tissue is thin Metal may affect color of porcelain Possible bluish tint of gum
Ceramo - 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
All - porcelain or cast glass	Most esthetic throughout crown life No metal shows	Not as strong as ceramo - metal Margin may be more susceptible to chipping More costly to make