Figure 3From: Design of a randomized controlled double-blind crossover clinical trial to assess the effects of saliva substitutes on bovine enamel and dentin in situ Arrangement of specimens in the prosthesis and various test fields of both hard tissues. a: - Lower removable full denture with inserted specimens (mesial two dentin specimens, distal two enamel specimens). b: - Arrangement of artificially demineralized enamel specimens (S: sound surface as reference; D: artificially demineralized surface as reference; E1: effect on the artificially demineralized surface after five weeks; E2: effect on the artificially demineralized surface after seven weeks). c: - Arrangement of sound enamel specimens (E1: effect on sound surface after five weeks; E2: effect after seven weeks). d: - Arrangement of sound dentin specimens (E1: effect on sound surfaces after five weeks; E2: effect after seven weeks)Back to article page