Edward Angle

The classification system for malocclusion introduced in the 1890s provided the foundational structure for modern orthodontics. By defining the precise relationship between upper and lower molars, Edward Angle moved the discipline beyond simple tooth regulation, establishing a standardized clinical framework that prioritized the alignment of dental arches and facial aesthetics.

Early Development and Education

Born in 1855 in Herricks, New York, Edward Hartley Angle spent his childhood working with machinery before pursuing a career in dentistry. He gained initial experience working under a local dentist from 1874 to 1876. He graduated from the Pennsylvania College of Dental Surgery in 1878 and began practicing in Towanda, Pennsylvania. In 1881, health complications related to respiratory issues led him to temporarily relocate to Minnesota and later Montana, where he attempted sheep ranching before settling in Minneapolis in 1882.

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Academic Career and Specialization

Angle joined the University of Minnesota faculty in 1886, teaching comparative anatomy and orthodontia while maintaining a private dental practice. During this period, his academic focus shifted from prosthodontics toward the specialized study of tooth position. He held several prominent faculty roles, serving at the Northwestern University Dental School from 1892 to 1898, the Marion Sims College of Medicine, and the Washington University Medical Department. In 1897, he earned a medical degree from Marion Sims College.

Standardizing the Discipline

In 1899, Angle founded the Angle School of Orthodontia in St. Louis, Missouri, a move that formally established orthodontics as a distinct medical specialty. Between 1905 and 1928, he opened additional institutions in New London, Connecticut, and Pasadena, California. His method relied on the classification of malocclusions and the development of specific orthodontic appliances. He famously opposed the practice of tooth extraction, maintaining that a full set of teeth was essential for achieving correct dental occlusion.

Professional Legacy

Angle authored seven editions of his textbook, beginning with a 14-page paper published in 1887. His most noted works included "The Angle System of Regulation and Retention of Teeth" and "Treatment of Malocclusion of the Teeth and Fractures of the Maxillae." He founded the Society of Orthodontists in 1901 and later the Edward H. Angle Society of Orthodontists in 1922. The publication "The Angle Orthodontist" was established in 1930, the year of his death in Pasadena.

Fast facts

Born: 1855, Herricks, New York
Died: 1930, Pasadena, California
Medical degree: 1897, Marion Sims College
First teaching position: 1886, University of Minnesota
Orthodontic school foundation year: 1900, St. Louis
Primary specialty: Orthodontics
Citizenship: United States

Questions readers ask

What is the Angle classification system?

It is a diagnostic system that defines normal occlusion by the position of the mesiobuccal cusp of the upper molar within the buccal groove of the lower molar.