Fig. 2From: Clinical correlation of salivary alpha-amylase levels with pain intensity in patients undergoing emergency endodontic treatment(A-E) -Illustrating the entire protocol of assessment of Salivary Alpha-Amylase. (A) – Collection of reagents; (B) – Addition of reagent to salivary sample; (C) Color change of salivary sample is evident after the addition of reagent; (D & E) – Assessment of color change in the spectrophotometerBack to article page