Fig. 4From: Comparison of tensile bond strength of ball attachments made of different materials to root canal dentin after chewing simulationa A photo showing the overdenture abutment ditched along the labial and lingual surfaces of the root and attached to the analysing rod of the surveyor. b photo of the overdenture abutment mounted in the acrylic mould. c A photo showing the sample mounted in the universal testing machine during the pullout testBack to article page