Fig. 13

Anti-infection root canal files. Reproduced with permission. Source: USPTO, www.uspto.gov: CNIPA, www.cnipa.gov.cn. a Root canal files with ultrasound function [113]. b–e Root canal files with flushing function [114–117]. f Root canal files with light anti-inflammatory function [118]. g Root canal files with laser anti-inflammatory function [119]. h Can bypass fractured root canal files [120]. i Can clamp fractured root canal files [121]