Fig. 1From: Analysing the potential of hydrophilic adhesive systems to optimise orthodontic bracket rebondingProcessing of the specimens. a Orthodontic attachments were bonded to lower bovine incisors and embedded in polyurethane in custom-made polytetrafluorethylene devices. b After polymerisation devices were unscrewed and the squared specimens were referred to the universal testing machine ZwickBack to article page