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Fig. 3 | BMC Oral Health

Fig. 3

From: A comparative study of the microtensile bond strength and microstructural differences between sclerotic and Normal dentine after surface pretreatment

Fig. 3

SEM micrographs of normal dentine surfaces (magnification, 2000× and 5000×). A × 2000, a × 5000: Control group and normal dentine without any treatments (a smear layer and a few cracks were observed (arrows)); B × 2000, b × 5000: dentine after 35% phosphoric acid treatment (dentine tubules were exposed after the treatment (arrows)); C × 2000, c × 5000: dentine after 5% NaClO treatment (the surface did not exhibit any obvious changes); D × 2000, d × 5000: dentine after 15% EDTA treatment (demineralized holes were observed (arrows)); E × 2000, e × 5000: dentine after 15% EDTA+ 5% NaClO treatment (an increased surface roughness was observed); F × 2000, f × 5000: dentine after 15% EDTA+ 10% NaClO treatment (an increased surface roughness was observed); G × 2000, g × 5000: dentine after 35% phosphoric acid+ 5% NaClO treatment (larger-diameter dentinal tubules and deeper holes were observed); H × 2000, h × 5000: dentine after 35% phosphoric acid+ 10% NaClO treatment (linked network structure was observed)

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BMC Oral Health

ISSN: 1472-6831

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