Final answer:
Cowhorn forceps are used for extracting mandibular first and second molars, which are shaped to provide leverage appropriate for these teeth with multiple roots.
Step-by-step explanation:
The cowhorn forceps are specifically designed for extracting teeth that have multiple roots and that are ideally shaped for leverage. In the dental nomenclature, these teeth are typically the mandibular (lower jaw) first and second molars. These molars have several pointed cusps that are used to crush food so it's ready for swallowing. The cowhorn forceps are named for their distinctive shape, which allows them to grip around the curved part of the molar's root, making them ideal for molar extractions.