In the non-SS group, no significant differences were observed in the OHIP-14 score, salivary flow rate, and salivary EGF output at baseline (9.1 ± 6.8, 16.8 ± 6.7 mL/10 min, and 13,623.1 ± 9546.2 pg/10 min, respectively) and at re-evaluation (10.7 ± 9.4, 16.7 ± 6.0 mL/10 min, and 11,904.9 ± 6995.4 pg/10 min, respectively) (p = 0.169, p = 0.628, and p = 0.184, respectively) (Table 4 (b)). This evidence concerns the gene EGF and synovial sarcoma.