Which flat working instrument used for extractions has large cutting grooves?

The instrument used for extractions that features large cutting grooves is the chisel. This dental tool is designed for removing hard tissue and is characterized by its flat, beveled cutting edge, which allows it to efficiently slice through tissue. The large cutting grooves on a chisel enhance its ability to engage and cut through bone or tooth structures during surgical procedures.

Chisels are particularly effective in certain extraction situations where precise control and significant cutting power are necessary, such as during the surgical removal of teeth or bone. This capability sets it apart from other instruments commonly used in dental extractions, which may focus on grasping or manipulating rather than cutting tissue. Other options, such as extraction forceps, scissors, and surgical curettes, serve different purposes in dental procedures and do not possess the same specific design features conducive to cutting through hard tissue like a chisel does.