Table I.
Comparison of baseline characteristics across the 3 treatment arms*
| Treatment group | ||||
|---|---|---|---|---|
| MI Paste Plus (n = 34) | PreviDent fluoride varnish (n = 40) | Home care (n = 41) | All (n = 115) | |
| Age (y) | 14.6 (1.4) | 14.4 (1.5) | 14.3 (1.5) | 14.4 (1.5) |
| Female | 15 (44%) | 23 (58%) | 21 (51%) | 59 (51%) |
| Race/ethnicity | ||||
| Non-Hispanic white | 19 (56%) | 23 (58%) | 25 (61%) | 67 (58%) |
| Other or multiple race | 6 (18%) | 3 (8%) | 4 (10%) | 13 (11%) |
| Unreported | 9 (26%) | 14 (35%) | 12 (29%) | 35 (30%) |
| Number of teeth affected by WSL (1–4) | 3.3 (1.0) | 3.2 (0.9) | 3.2 (1.1) | 3.2 (1.0) |
| Initial surface area affected by WSL (%) | 11.8 (8.6) | 11.2 (6.2) | 11.5 (9.6) | 11.5 (8.2) |
| Oral hygiene level (based on latest toothbrushing and flossing habits) (%) | ||||
| Good | 3 (9%) | 2 (5%) | 5 (12%) | 10 (9%) |
| Fair | 15 (44%) | 18 (45%) | 14 (34%) | 47 (41%) |
| Poor | 16 (47%) | 20 (50%) | 22 (54%) | 58 (50%) |
| Weeks from orthodontic appliance removal to enrollment | ||||
| Mean (SD) | 1.03 (1.8) | 0.93 (1.7) | 1.5 (2.3) | 1.2 (2.0) |
| ≤1 week (%) | 24 (71%) | 31 (78%) | 27 (66%) | 82 (71%) |
| Weeks from baseline to follow-up photograph | 9.5 (4.6) | 9.6 (3.0) | 11.0 (6.8) | 10.1 (5.1) |
*
For the continuous variables, the values reported are means (and standard deviations). For categorical variables, count (%).