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Related to jacket crown: Porcelain Jacket Crown
a hollow crown of acrylic resin, fused porcelain or cast gold, combinations of gold and acrylic or gold and porcelain; it fits over the prepared stump of the natural crown.
jack·et crown(jakĕt krown)
Hollow crown of acrylic resin, fused porcelain, cast gold, or combinations thereof; it fits over prepared stump of natural crown.