Divya Shetty

Technology is shaping the future of healthcare provision, not least in Orthodontics.To overcome difficulties associated with conventional techniques, impressions with IOS (Intraoral Scanner) and CAD/CAM (Computer Aided Design and Manufacturing) technologies were developed for dental practice. The last decade has seen an increasing number of optical IOS devices, and these are based on different technologies, the choice of which may impact on clinical use. An understanding of the IOS technology is necessary for any practitioner to have a successful clinical strategy during the scanning of the prepared teeth.

Extractions in orthodontics remain a relatively controversial area. It is not possible to treat all malocclusions without taking out any teeth. The factors which affect the decision to extract include the patient's medical history, the attitude to treatment, oral hygiene, caries rates and the quality of teeth. Extractions of specific teeth are required in the various presentations of malocclusion. Any decision regarding the need for extraction of teeth during orthodontic therapy is not only dependent on the presence or absence of space in the dental arches. Other issues should be evaluated in order to achieve proper malocclusion correction, maintenance or improvement of facial aesthetics and result stability.