Table 1.
Demographics, oral malodour levels, and baseline oral health conditions of subjects
| Parameter | Normal mental status (n = 289) | Neurotic mental status (n = 79) | ||
|---|---|---|---|---|
| Subjects without oral malodour (n = 64) | Subjects with oral malodour (n = 225) | Subjects without oral malodour (n = 21) | Subjects with oral malodour (n = 58) | |
| Age (years) (average ± SD) | 43.3 ± 15.6 | 47.0 ± 14.4 | 40.1 ± 11.5 | 43.3 ± 14.7 |
| Females (%) | 57.8 (37/64) | 63.1 (142/225) | 81.0 (17/21) | 44.8 (26/58) |
| Males (%) | 42.2 (27/64) | 36.9 (83/225) | 19.0 (4/21) | 55.2 (32/58) |
| Oral malodour levels | ||||
| H2S (ppm) | 0.07 ± 0.05 | 0.50 ± 0.35 | 0.07 ± 0.04 | 0.56 ± 0.42 |
| CH3SH (ppm) | 0.03 ± 0.03 | 0.36 ± 0.28 | 0.04 ± 0.03 | 0.35 ± 0.32 |
| CH3SCH3 (ppm) | 0.01 ± 0.02 | 0.10 ± 0.08 | 0.01 ± 0.02 | 0.10 ± 0.10 |
| Total VSCs (ppm) | 0.11 ± 0.08 | 0.96 ± 0.66 | 0.12 ± 0.07 | 1.01 ± 0.78 |
| Baseline of oral health condition | ||||
| Number of teeth | 26.3 ± 5.03 | 26.7 ± 3.46 | 26.3 ± 4.87 | 25.9 ± 6.37 |
| Number of caries | 0.68 ± 2.33 | 0.50 ± 1.41 | 0.38 ± 0.74 | 0.43 ± 0.86 |
| Number of fillings | 12.7 ± 5.60 | 12.8 ± 5.77 | 14.6 ± 5.33 | 12.1 ± 6.10 |
| Stimulated salivary flow (ml per 5 minutes) | 5.88 ± 2.74 | 6.67 ± 3.34 | 5.09 ± 2.64 | 7.11 ± 3.70 |