Final answer:
Ida Gray Nelson Rollins, an African American woman, was the first to graduate from a recognized dental college, obtaining her degree in 1890 from the Ohio College of Dentistry.
Step-by-step explanation:
The first woman to graduate from a recognized dental college was Ida Gray Nelson Rollins. She became the first African American female doctor of dentistry after graduating from the Ohio College of Dentistry in 1890. Rollins established her dental practice in cities such as Cincinnati and Chicago, breaking through significant racial and gender barriers of the time.