Early Life and Education
- Charles H. Tweed was born in New York City in 1895.
- He attended Phoenix public schools.
- Tweed studied pre-dental at Stanford University.
- He received a D.D.S degree from the University of California in 1919.

Contributions to Orthodontics
- Tweed's philosophy differed from his mentor Edward Angle.
- He believed in extracting teeth for better profile and prevention of relapse.
- Tweed presented his findings at the AAO annual meeting in 1940.
- He published articles in the Angle Orthodontist journal.
- Tweed wrote the textbook 'Clinical Orthodontics' in 1966.

Research and Publications
- Tweed conducted extensive research throughout his career.
- He published numerous articles in dental journals.
- His research focused on the effectiveness of different orthodontic treatments.
- Tweed's publications helped establish evidence-based practices in orthodontics.
- His work continues to be referenced by orthodontists today.

Professional Achievements
- Tweed served as the president of several dental organizations.
- He received numerous awards for his contributions to orthodontics.
- Tweed was a sought-after speaker at dental conferences worldwide.
- His expertise and reputation earned him a large and loyal patient base.

Legacy and Influence
- Tweed's legacy lives on in the field of orthodontics.
- His techniques and teachings continue to be taught in dental schools.
- Many orthodontists still use Tweed's methods in their practice.
- Tweed's influence can be seen in the work of subsequent orthodontic researchers.
- His contributions have had a lasting impact on the field of orthodontics.