3.2.4. TOS and OSI

We observed significantly increased values of TOS and OSI in NWS (↑81%, *p* = 0.00001; ↑191%, *p* = 0.000001, respectively), SWS (↑201%, *p* = 0.00001; ↑588%, *p* = 0.000001, respectively) and plasma (↑76%, *p* = 0.00001; ↑158%, *p* = 0.000001, respectively) of HT patients compared to the control group (Figure 2).

**Figure 2.** Redox status in NWS, SWS and plasma of the patients and control group. Data are shown as median (minimum–maximum). OSI—oxidative stress index; NWS—non-stimulated whole saliva; SWS—stimulated whole saliva; TAC—total antioxidant capacity; TOS— total oxidant status. \*\*\*\* *p* < 0.0001.
