Margin Ring and Method of Making Dental Crown Using the Margin Ring

摘要

The present invention provides a margin ring that can conforms to a dental abutment, and a method of using the margin ring to make a crown. The invention exhibits technical advantages such as a clearer impression; simplified operation such as elimination the step of packing a retraction cord; improved control over the fabrication of a crown; cost-effectiveness in terms of doctor chair time and lab cost; less usage of accessories; and fewer patient visits, among others.