This document specifies requirements and test methods for orthodontic anchor screws used in orthodontic treatment, in combination with orthodontic appliances. Orthodontic anchor screws are used to provide temporary intraoral skeletal anchorage during orthodontic therapy and are removed at the end of the orthodontic treatment. Similar to endosseous dental implants, they are, therefore inserted into the maxillo-facial bone structures. This document gives details of methods to compare physical and mechanical properties of orthodontic anchor screws together with test methods and packaging and labelling information.