Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

91 questions · 99 findings · 13 reviews · Orthodontics

No studies found 17 · 17.2%GRADE not reported 29 · 29.3%Very low 33 · 33.3%Low 17 · 17.2%Moderate 3 · 3%High 0 · 0%

Fibre-reinforced composite fixed (bonded) retainer vs Multistrand / spiral wire fixed (bonded) retainer

Adverse effects on oral health: Gingival Index (lower arch) · People who had received fixed appliance orthodontic treatment

The review found no eligible studies for this question.

1 finding from 1 review

Full-time clear plastic (removable) retainer vs Any type of fixed (bonded) retainer

Adverse effects on oral health: caries (lower arch) · People who had received fixed appliance orthodontic treatment

It is very uncertain whether full-time clear plastic (removable) retainer changes adverse effects on oral health: caries (lower arch) compared with any type of fixed (bonded) retainer (very low certainty).

1 finding from 1 review

Orthodontic treatment with appliances inducing stable, permanent orthodontic tooth movement (splints worn 8 to 12 weeks and surgical interventions excluded) vs Control: no treatment, placebo, or reassurance

Adverse effects on oral health · Adults aged 18 years or older with clinically diagnosed TMD (exhibiting two or more of the listed signs and/or symptoms)

The review found no eligible studies for this question.

1 finding from 1 review

Fluoride varnish vs Placebo varnish, resin sealant, or standard care (oral hygiene instructions)

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

Fluoride varnish vs Placebo varnish, resin sealant, or standard care (oral hygiene instructions)

White spot lesion clinical score (mean values), subject level · Healthy adolescents and adults undergoing orthodontic treatment with fixed multi-bracket appliances

In a pooled analysis of two placebo-controlled trials, fluoride varnish also reduced white spot lesion clinical scores (pooled SMD -0.44, 95% CI -0.64 to -0.24); this secondary outcome was not separately GRADE-rated.

1 finding from 1 review

Anorexia nervosa (as exposure; diagnosed by DSM-III/III-R/IV/V) vs Healthy controls

Percentage of bleeding on probing (BOP) · Patients with anorexia nervosa aged >=12 years (mean age ~18.4; entirely female in reported data), general community-dwelling population

Anorexia nervosa is associated with significantly increased bleeding on probing versus healthy controls (MD 16.57%, 95% CI 12.89 to 20.25; low certainty).

1 finding from 1 review

Anorexia nervosa (as exposure; diagnosed by DSM-III/III-R/IV/V) vs Healthy controls

Salivary flow rate (stimulated) · Patients with anorexia nervosa aged >=12 years (mean age ~18.4; entirely female in reported data), general community-dwelling population

Stimulated salivary flow rate was significantly lower in anorexia nervosa patients than controls, but only unstimulated flow was meta-analyzed; this outcome is ungraded.

1 finding from 1 review

Anorexia nervosa (as exposure; diagnosed by DSM-III/III-R/IV/V) vs Healthy controls

Salivary pH · Patients with anorexia nervosa aged >=12 years (mean age ~18.4; entirely female in reported data), general community-dwelling population

Anorexia nervosa is associated with significantly lower salivary pH than healthy controls (MD -0.39, 95% CI -0.54 to -0.24; low certainty).

1 finding from 1 review

Anorexia nervosa (as exposure; diagnosed by DSM-III/III-R/IV/V) vs Healthy controls

Salivary alpha-amylase · Patients with anorexia nervosa aged >=12 years (mean age ~18.4; entirely female in reported data), general community-dwelling population

There is no significant difference in salivary alpha-amylase between anorexia nervosa patients and healthy controls (MD 6.32 U/l, 95% CI -6.14 to 18.79; low certainty).

1 finding from 1 review

Anorexia nervosa (as exposure; diagnosed by DSM-III/III-R/IV/V) vs Healthy controls

Salivary flow rate (unstimulated) · Patients with anorexia nervosa aged >=12 years (mean age ~18.4; entirely female in reported data), general community-dwelling population

Anorexia nervosa probably reduces unstimulated salivary flow rate versus healthy controls (MD -0.27 ml/min, 95% CI -0.31 to -0.24; moderate certainty).

1 finding from 1 review

Anorexia nervosa (as exposure; diagnosed by DSM-III/III-R/IV/V) vs Healthy controls

Gingival (marginal) recession · Patients with anorexia nervosa aged >=12 years (mean age ~18.4; entirely female in reported data), general community-dwelling population

Gingival (marginal) recession was significantly higher in anorexia nervosa patients than controls in both reporting studies, but was not pooled or graded (ungraded).

1 finding from 1 review

Anorexia nervosa (as exposure; diagnosed by DSM-III/III-R/IV/V) vs Healthy controls

Dental erosion · Patients with anorexia nervosa aged >=12 years (mean age ~18.4; entirely female in reported data), general community-dwelling population

Dental erosion was more prevalent in anorexia nervosa patients than controls (low erosive-wear severity), but was not pooled or graded (ungraded).

1 finding from 1 review

Anorexia nervosa (as exposure; diagnosed by DSM-III/III-R/IV/V) vs Healthy controls

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

Anorexia nervosa (as exposure; diagnosed by DSM-III/III-R/IV/V) vs Healthy controls

Caries experience · Patients with anorexia nervosa aged >=12 years (mean age ~18.4; entirely female in reported data), general community-dwelling population

Anorexia nervosa is associated with significantly higher caries experience (DMFT) than healthy controls (MD 2.00 teeth, 95% CI 0.87 to 3.13; low certainty).

1 finding from 1 review

Chlorhexidine mouthwash vs placebo

Cariogenic bacteria (Mutans streptococci) · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

Chlorhexidine mouthwash reduced Mutans streptococci versus placebo, but certainty is very low.

1 finding from 1 review

Chlorhexidine mouthwash vs Blank control

Cariogenic bacteria (Mutans streptococci) · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

Chlorhexidine mouthwash reduced Mutans streptococci versus blank control, but certainty is very low.

1 finding from 1 review

Herbal mouthwash vs placebo

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

Fluoride mouthwash vs Blank control

Cariogenic bacteria (Mutans streptococci) · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

Short-term fluoride mouthwash reduced Mutans streptococci, but certainty is very low.

2 findings from 1 review

Chlorhexidine mouthwash vs Placebo mouthwash

Probing pocket depth (PPD/PD) · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)

Chlorhexidine mouthwash may reduce pocket probing depth versus placebo in the short term (low certainty).

1 finding from 1 review

Chlorhexidine mouthwash vs Blank control

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