A colourimetric evaluation of the effect of bacterial contamination on teeth stained with blood in vitro: Evaluation of the efficacy of two different bleaching regimes.
S WangP CathroG S HeithersayN BriggsJithendra T RatnayakeP ZilmPublished in: Australian dental journal (2018)
Blood-stained teeth were significantly darker and red compared with blood/bacteria-stained teeth. T bleaching regime was more effective than S.