Mini/micro screw implantation for orthodontic anchorage

1 Guidance

1.1 There is limited evidence that mini/micro screw implantation provides adequate orthodontic anchorage and there are no major safety concerns. Therefore, clinicians wishing to use this procedure should do so with normal arrangements for clinical governance.

1.2 During the consent process clinicians should ensure that patients understand that there is a failure rate associated with the use of mini/micro screws and that the success of dental alignment cannot be guaranteed. They should provide patients with clear, written information. In addition, use of the Institute's information for patients ('Understanding NICE guidance') is recommended.

1.3 Evidence about optimal screw size and site of implantation (upper/lower jaw or buccal/lingual side of the bone) is limited. Therefore, further audit and research to clarify these issues would be useful (see section 3.1).