Hayes Nance
Hayes Nance (August 14, 1893 - April 3, 1964) was an American orthodontist known for his contributions to topics related to mixed dentition. Nance is known for developing serial extraction in United States, as well as pioneering the development of the Nance Appliance. Life. Nance was born in 1893 in Jackson, Tennessee, the youngest of five children. After his mother died in 1908, Nance attended the Webb School of Knoxville, Tennessee. During his childhood, he was involved in an accident while working in a copper mine in Miami, Florida. While working, Hayes suffered a fall which led to several  fractures including a spinal injury. He married Julia Manning. He attended Northwestern University Dental School in 1919 and practiced for a short time in Arizona. He then eventually moved to Denver and opened his own practice. He retired in 1948. He married Florence Hays in 1956. He died in 1964 at his home in Pasadena, California due to a heart attack. Florence died in 1955 also due to a heart attack. Orthodontics. Nance wrote a paper in 1947 titled "Limitations of Orthodontic Treatment" that was the culmination of his 17 years of orthodontia. Nance described the concept of "leeway space