Control (n = 5)

ProFresh^® (n = 87)

Pre

Post

Pre

Post

Intraoral gas (ppb)

H₂S

106.4 ± 26.8

100.6 ± 33.3

225.8 ± 28.1

41.1 ± 8.8^**

CH₃SH

23.6 ± 7.5

25.0 ± 6.1

72.2 ± 11.1

7.1 ± 1.6

(CH₃)₂SH

20.8 ± 3.8

19.2 ±4.9

25.5 ± 3.2

6.2 ± 0.9

Exhaled gas (ppb)

H₂S

103.2 ± 23.5

101.0 ± 34.6

212.0 ± 50.4

34.6 ± 16.6^**

CH₃SH

23.6 ± 1.7

24.2 ± 4.4

48.6 ± 28.1

6.6 ± 3.0^*

(CH₃)₂SH

24.6 ± 1.4

19.0 ± 4.2

14.4 ± 4.2

7.1 ± 1.6