Nonextraction Treatment of Bimaxillary Anterior Crowding With Bioefficient Skeletal Anchorage

Abstract Premolar extraction treatment with a multibracketed system and reinforced anchorage has been a common modality for correcting incisor crowding, Class II or Class III malocclusion in adult patients. The alternative distalization approach of the posterior teeth was difficult and perhaps unachievable after full eruption of the second molars. However, following development of the temporary anchorage devices (TADs), the clinical strategies for malocclusions have drastically changed in adult orthodontics. The Skeletal Anchorage System (SAS), which uses titanium miniplates, is one of the techniques used in TADs. The miniplates are always positioned away from the dentition, so that it never disturbs the distalization of the molars. This chapter addresses how the nonextraction treatment using SAS biomechanics should be performed for correction of bimaxillary anterior crowding in adults.