What is a crown, and what are the different types of crowns?

What will be an ideal response?

A crown is a restoration that fits over the remaining part of a tooth, making it strong and giving it the shape and contour of a natural tooth. The different types of crowns follow:
Full crowns
Full veneer crowns
Partial crowns
Partial (three-quarter) veneer crowns
Porcelain-faced crowns
Seven-eighths crowns
Stainless steel crowns