<p>Immunofluorescence-stained pulp tissues were prepared 3 days after treatment. A. H&E-stained pulp tissues from dogs with mild pulpitis 3 days after treatment with MMP-3, MMP-3 plus NNGH, NNGH alone or saline as indicated, with the indicated area magnified in B. The arrows indicate the imaginary amputated site. Scale bar, 200 µm. B. Pulpitis tissues stained with biotinylated HABP (HA), anti-SHAP (SHAP) and anti-versican as indicated. Scale bar, 20 µm.</p
