Survival of retainers (failure, lower arch) · People who had received fixed appliance orthodontic treatment
It is very uncertain whether part-time clear plastic (removable) retainer changes survival of retainers (failure, lower arch) compared with any type of fixed (bonded) retainer (very low certainty).
1 finding from 1 review
Discomfort/pain · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
It is very uncertain whether low level laser therapy (LLLT) changes patient perception of pain and discomfort (VAS 0 to 100 mm) compared with conventional orthodontic appliance treatment (very low certainty).
1 finding from 1 review
Stability: Little's Irregularity Index (lower arch) · People who had received fixed appliance orthodontic treatment
It is very uncertain whether hawley removable retainer changes stability: Little's Irregularity Index (lower arch) compared with clear plastic removable retainer (very low certainty).
1 finding from 1 review
Duration of orthodontic treatment during alignment stage · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
It is very uncertain whether low level laser therapy (LLLT) changes duration of orthodontic treatment during alignment stage compared with conventional orthodontic appliance treatment (very low certainty).
1 finding from 1 review
Stability: Little's Irregularity Index (lower arch) · People who had received fixed appliance orthodontic treatment
Upper clear plastic retainer + lower fixed canine-to-canine retainer led to lower stability: Little's Irregularity Index (lower arch) compared with positioner; GRADE not reported.
1 finding from 1 review
Survival of retainers (failure/how many failed) · People who had received fixed appliance orthodontic treatment
The review found no eligible studies for this question.
1 finding from 1 review
Not measured
0 studies
No studies found
Gingival inflammation-related index · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)
Short-term fluoride mouthwash has uncertain effects on gingival inflammation-related indexes versus blank control (very low certainty).
1 finding from 1 review
Adverse effects on oral health · People who had received fixed appliance orthodontic treatment
The review found no eligible studies for this question.
1 finding from 1 review
Not measured
0 studies
No studies found
Harms (orthodontically-induced inflammatory root resorption) · Adolescents and adults with malocclusion undergoing orthodontic treatment with fixed or removable appliances
Light vibrational forces (LVF) showed no clear difference in harms and side effects: orthodontically-induced inflammatory root… compared with conventional orthodontic appliance treatment (placebo or no adjunct) (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
Adverse effects on oral health: bleeding on probing (lower arch) · People who had received fixed appliance orthodontic treatment
The review found no eligible studies for this question.
1 finding from 1 review
Survival of retainers (failure/how many failed) · People who had received fixed appliance orthodontic treatment
It is very uncertain whether hawley removable retainer changes survival of retainers (failure, upper and lower arches) compared with clear plastic removable retainer (very low certainty).
1 finding from 1 review
Patient satisfaction: comfort (VAS, upper and lower arches) · People who had received fixed appliance orthodontic treatment
The review found no eligible studies for this question.
1 finding from 1 review
Patient-reported need for analgesics · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
The review found no eligible studies for this question.
1 finding from 1 review
Total number of orthodontic appliance adjustment appointments during treatment · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
The review found no eligible studies for this question.
1 finding from 1 review
Cariogenic bacteria (Lactobacilli colony count) · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)
Long-term (>=12 months) fluoride mouthwash may make little or no difference to Lactobacilli colony counts versus blank control (very low certainty).
1 finding from 1 review
Stability: Little's Irregularity Index (upper arch) · People who had received fixed appliance orthodontic treatment
Upper fixed (bonded) retainer led to lower stability: Little's Irregularity Index (upper arch) compared with no retention; GRADE not reported.
1 finding from 1 review
Prevalence of white spot lesions (WSL) at debonding, subject level · Healthy adolescents and adults undergoing orthodontic treatment with fixed multi-bracket appliances
Fluoride varnish applied regularly during fixed orthodontic treatment may reduce the prevalence of white spot lesions at debonding (pooled RR 0.64, 95% CI 0.42 to 0.98), but the certainty of evidence is very low.
1 finding from 1 review
Overall treatment time wearing orthodontic appliances · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
The review found no eligible studies for this question.
1 finding from 1 review
Severity of white spot lesions (surface area and depth) · Orthodontic patients undergoing comprehensive treatment (late mixed or permanent dentition, no active caries)
White spot lesion severity was assessed narratively in a small number of studies and not meta-analyzed; evidence is limited (ungraded).
1 finding from 1 review