Streptococcus mutans count · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)
The antibacterial (S. mutans) effect of TiO2 nanoparticles was conflicting across two RCTs (ungraded).
1 finding from 1 review
Dentist satisfaction (masking effect) · Patients with dental fluorosis
Resin infiltration alone produced greater dentist-rated masking than in-office bleaching alone in one study (MD 3.97, 95% CI 3.33 to 4.61; ungraded).
1 finding from 1 review
MD 3.97 [3.33, 4.61]
1 study
GRADE not reported
Incidence of initial enamel caries / white spot lesions adjacent to bracket base (subject level, dichotomized) · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)
Adding a fluoride mouthrinse to daily fluoride toothpaste produced a small reduction in the incidence of initial caries/white spot lesions adjacent to brackets (pooled risk difference -0.07, 95% CI -0.14 to -0.01; 5 studies, 491 subjects), but the authors judged the overall evidence inconclusive (ungraded).
1 finding from 1 review
Side effects or other adverse events · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)
No adverse effects were reported in any of the seven included studies (ungraded).
1 finding from 1 review
Masking effect (esthetic improvement) · Patients with dental fluorosis
Bleaching before resin infiltration did not improve masking of fluorosis compared with infiltration alone (MD -0.30, 95% CI -0.98 to 0.39; moderate certainty).
1 finding from 1 review
MD -0.30 [-0.98, 0.39]
2 studies
Moderate
Enamel remineralization extent · Human enamel specimens around orthodontic brackets (in vitro)
In vitro, a nano-CaF2-containing orthodontic cement showed significant enamel remineralization versus control in a single study (ungraded).
1 finding from 1 review
Whitening (bleaching) efficacy · Demineralised / white-spot-lesion enamel (in vitro specimens)
Low-quality in vitro evidence indicates that adding fluoride or other remineralising agents does not impair the whitening/bleaching effect (ungraded).
1 finding from 1 review
Enamel mineral loss / remineralisation · Demineralised / white-spot-lesion enamel (in vitro specimens)
Low-quality in vitro evidence indicates that adding fluoride, calcium or CPP-ACP to bleaching agents can reduce enamel mineral loss (ungraded).
1 finding from 1 review