Parameters Groups group (I) X±SD Median group (II) X±SD median group (III) X±SD median P value Diagonal diameters of duct 20.19 ± 6.05 20.43 33.01± 6.02* 31.86 21.36 ± 2.6≠ 21.91 <0.001 Area % of collagen 7.08 ± 3.05 6.14 22.78 ± 5.72* 22.46 8.92 ±4.11≠ 9.06 <0.001 Optical density of PAS 0.52 ± 0.047 0.54 0.76 ± 0.025* 0.76 0.56±0.049≠ 0.56 <0.001 *significant with control ≠significant with group II

Table 1: Showing the changes in diagonal diameters of parotid duct, area % of collagen fibers and optical density of PAS reaction in all studied groups.