Career and Achievements - Renfroe taught at the University of Illinois at Chicago College of Dentistry from 1933 through the 1980s. - He was acknowledged as one of the best hands-on clinical orthodontics instructors in the world. - Renfroe wrote a seminal article on preventive and interceptive orthodontics in 1957. - He is considered one of the fathers of orthodontics in Brazil. - Renfroe became certified as an orthodontic specialist in 1948. - Renfroe's textbook, 'Technique Training in Orthodontics,' was published in 1960. - He received recognition for his innovative techniques. - Renfroe was respected for his expertise and professionalism.

Military Service and Leadership - Renfroe served as the chief dental officer in Fort Huachuca, Arizona during World War II. - He retired as a colonel in the U.S. Army Reserves in 1968. - Renfroe was awarded the rank of general in 1984. - He joined the Illinois National Guard in 1932. - Renfroe was the president of the Chicago Association of Orthodontics.

Breaking Barriers for African Americans - Renfroe was the first African American to lead a department at the University of Illinois at Chicago College of Dentistry. - He opened the first African American orthodontist office in Chicago's downtown Loop area. - Renfroe was the first African American in Illinois to be licensed as a commercial aviator. - He ended the practice of racial segregation in dental care at the university. - Renfroe was honored with the Distinguished Alumnus Award by the UIC Dental Alumni Association.

International Impact - Renfroe traveled abroad to lecture on orthodontics and taught in nine countries. - He is considered one of the fathers of orthodontics in Brazil. - Renfroe learned Portuguese to teach his courses in Brazil. - He lectured frequently in Argentina and taught a technical course there. - Renfroe made 30 trips to Barbados, where a dental facility is named after him.

Scholarly Works and Honors - Renfroe published articles on orthodontics in various journals. - He co-authored an article on preventive and interceptive orthodontics in 1957. - Renfroe was named a fellow of the American College of Dentistry in 1963. - He received the Chicago Senior Citizens Hall of Fame induction in 1990. - Dr. Earl Renfroe Sr. left a lasting impact on the field of orthodontics. - His innovative techniques continue to influence the practice. - Renfroe's dedication to community service inspired others. - He is remembered for his professionalism and expertise. - Dr. Renfroe's contributions continue to be recognised in the dental community.