Plaque index (PI) / oral hygiene · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)
Chlorhexidine mouthwash reduced Plaque Index versus placebo, but certainty is very low.
1 finding from 1 review
Plaque · Adults undergoing orthodontic treatment
Aligners may reduce plaque index compared with fixed appliances in adults at 6-12 weeks (MD -0.58, 95% CI -0.82 to -0.34; very low certainty).
1 finding from 1 review
Plaque · Adolescents/teenagers undergoing orthodontic treatment
A single study reported lower plaque index with aligners versus fixed appliances in adolescents at 18 months (MD -0.40, 95% CI -0.77 to -0.03; ungraded).
2 findings from 1 review
Plaque · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)
Herbal mouthwash reduced some plaque-related indices versus placebo, with low-certainty evidence.
1 finding from 1 review
Plaque · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)
CPC mouthwash may reduce plaque-related indexes versus blank control in the short term, but the evidence is very uncertain (very low certainty).
1 finding from 1 review
Plaque · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)
Long-term fluoride mouthwash showed mixed plaque-index effects, with very low-certainty evidence.
2 findings from 1 review
PI was similar to blank control [37]; API was slightly reduced compared to blank control and significant at 6 and 9 months [59].
2 studies
Very low
TI was significantly reduced compared to baseline [34]; PI was significantly reduced compared to baseline but similar to blank control [46].
2 studies
Very low
Plaque · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)
Herbal mouthwash reduced several plaque-related indices, but certainty is very low.
1 finding from 1 review
Plaque · Orthodontic patients undergoing comprehensive treatment (late mixed or permanent dentition, no active caries)
In randomized trials, clear aligners probably reduce plaque accumulation versus fixed appliances, though the subgroup estimate is imprecise and its CI crosses no effect (SMD -1.79, 95% CI -3.63 to 0.04; moderate certainty).
6 findings from 1 review
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Plaque · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)
Chlorhexidine mouthwash may reduce the Plaque Index versus blank control in the short term (WMD -0.70, 95% CI -1.12 to -0.27), but the evidence is very uncertain (very low certainty).
1 finding from 1 review
Plaque · Patients with anorexia nervosa aged >=12 years (mean age ~18.4; entirely female in reported data), general community-dwelling population
Anorexia nervosa patients tended to have higher plaque accumulation than healthy controls (significant in 2 of 3 studies), but results were not pooled or graded (ungraded).
1 finding from 1 review
Plaque index (PI) / oral hygiene · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
It is very uncertain whether 1400/250 ppm F (amine F/SnF2) toothpaste + mouthrinse, daily changes visible plaque index (mean change from baseline) compared with 1400/250 ppm F (NaF) toothpaste + mouthrinse, daily (very low certainty).
1 finding from 1 review