of the Maxillae: Angle's System. His increasing interest in dental occlusion and in the treatment necessary to obtain normal occlusion led directly to his development of orthodontics as a specialty, with himself as the "father of modern orthodontics". The development of Angle's classification of malocclusion in the 1890s was an important step in the development of orthodontics because it not only subdivided major types of malocclusion but also included the first clear and simple definition of normal occlusion in the natural dentition. In the 1890s, Edward H. Angles proposed a classification system for malocclusion, which revolutionized the field of orthodontics. He suggested that as long as the top and bottom molars were arranged in a smoothly curving line of occlusion and connected so that the mesiobuccal cusp of the upper molar occluded in the buccal groove of the lower molar, then normal occlusion would result. Concurrently, this comprehensive system provided clarity and simplicity to defining healthy dentition alignment with its categorization of major types of malocclusion. Angle was concerned with the aesthetics of orthodontics as well as functionality and so he collaborated with the artist and art educator Edmund H. Wuerpel in applying aesthetics to his field. The artist and dentist collaborated for many years and Wuerpel lectured frequently at Angle's request, in St. Louis as well as in Pasadena. The Angle Orthodontist, founded in 1930, is the official publication of the Edward H. Angle Society of Orthodontists, society established in 1922, and is published bimonthly in January, March, May, July, September and November by The EH Angle Education and Research Foundation Inc. In 1901, he also founded the Society of Orthodontists which later became American Society of Orthodontists. Having a full set of teeth on both arches was highly sought after in orthodontic treatment due to the need for exact relationships between them. Extraction as an orthodontic procedure was heavily opposed by Angle and those who followed him. As occlusion became the key priority, facial proportions and esthetics were neglected. To achieve ideal occlusals without using external forces, Angle postulated that having perfect occlusion was the best way to gain optimum facial aesthetics. Edward Angle has 46 patents to his name. Classification of Malocclusions In the 1890s, Edward H. Angles proposed a classification system for malocclusion, which revolutionized the field of orthodontics. He suggested that as long as the top and bottom molars were arranged in a smoothly curving