highly significantp < 0.0001
This difference in the observation was highly significant between enamel defects at low and high fluoride concentrations (χ2 = 37, df = 1, p < 0.0001).
This difference in the observation was highly significant between enamel defects at low and high fluoride concentrations (χ2 = 37, df = 1, p < 0.0001).