Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

232 questions · 289 findings · 30 reviews · Oral Health

No studies found 26 · 9%GRADE not reported 199 · 68.9%Very low 33 · 11.4%Low 17 · 5.9%Moderate 12 · 4.2%High 2 · 0.7%

Dental caries (ECC/severe ECC) as exposure/grouping vs Caries-free controls

Relative abundance of S. mutans in saliva · Individuals assessed for dental caries, predominantly children with early childhood caries (ECC) or severe ECC (age about 1 to 4 years)

A few small studies report Streptococcus mutans relative abundance in caries versus caries-free children without pooling; the evidence is ungraded and not meta-analyzed.

1 finding from 1 review

Dental caries (ECC/severe ECC) as exposure/grouping vs Caries-free controls

Relative abundance of Veillonella spp. · Individuals assessed for dental caries, predominantly children with early childhood caries (ECC) or severe ECC (age about 1 to 4 years)

Evidence on whether Veillonella spp. relative abundance is higher or lower in children with dental caries than caries-free controls is inconsistent across 7 small observational studies; no pooled estimate was produced and the evidence is ungraded.

1 finding from 1 review

Food and nonalcoholic beverage marketing (exposure) vs No, less, or less powerful food marketing

Food intake · Children and adolescents (general population, aged under 20 years)

Food marketing was associated with a significant increase in children's food intake (pooled SMD, 0.25; combined RCT and nonrandomized evidence).

3 findings from 1 review

Food and nonalcoholic beverage marketing (exposure) vs No, less, or less powerful food marketing

Food preference · Children and adolescents (general population, aged under 20 years)

Food marketing was associated with increased food preference (pooled SMD, 0.30; combined evidence).

3 findings from 1 review

Food and nonalcoholic beverage marketing (exposure) vs No, less, or less powerful food marketing

Dental caries · Children and adolescents (general population, aged under 20 years)

Evidence on food marketing and dental caries is very uncertain (very low certainty); 1 of 2 studies found an association.

1 finding from 1 review

Food and nonalcoholic beverage marketing (exposure) vs No, less, or less powerful food marketing

Purchase requests · Children and adolescents (general population, aged under 20 years)

Nonrandomized evidence on purchase requests is very uncertain (very low certainty).

2 findings from 1 review

Food and nonalcoholic beverage marketing (exposure) vs No, less, or less powerful food marketing

Food choice · Children and adolescents (general population, aged under 20 years)

Food marketing probably increases children's choice of the marketed food (OR, 1.97; moderate certainty, RCTs).

3 findings from 1 review

Food and nonalcoholic beverage marketing (exposure) vs No, less, or less powerful food marketing

Food purchasing · Children and adolescents (general population, aged under 20 years)

Food marketing showed no clear association with food purchasing by or for children (very low certainty).

1 finding from 1 review

Food and nonalcoholic beverage marketing (exposure) vs No, less, or less powerful food marketing

Body weight / BMI · Children and adolescents (general population, aged under 20 years)

Evidence on food marketing and body weight is very uncertain (very low certainty); a single study found no association.

1 finding from 1 review

Food and nonalcoholic beverage marketing (exposure) vs No, less, or less powerful food marketing

Diet-related noncommunicable diseases · Children and adolescents (general population, aged under 20 years)

No eligible studies were found.

1 finding from 1 review

Cleft lip and/or palate (CL/P) vs Healthy controls without cleft

Gingival index (GI) · Individuals assessed for periodontal health (mainly children and adolescents, age >2 years)

Persons with orofacial cleft have a higher gingival index than healthy controls (MD 0.15, 95% CI 0.11 to 0.19; low certainty).

1 finding from 1 review

Cleft lip and/or palate (CL/P) vs Healthy controls without cleft

Clinical attachment level (CAL) · Individuals assessed for periodontal health (mainly children and adolescents, age >2 years)

Clinical attachment level loss is greater in persons with orofacial cleft than in healthy controls (p<0.00001), but no pooled effect size was reported (ungraded).

1 finding from 1 review

Cleft lip and/or palate (CL/P) vs Healthy controls without cleft

Bleeding Index (BI) · Individuals assessed for periodontal health (mainly children and adolescents, age >2 years)

Bleeding index is significantly higher in persons with orofacial cleft than in healthy controls (p<0.0001), but no pooled effect size was reported (ungraded).

1 finding from 1 review

Cleft lip and/or palate (CL/P) vs Healthy controls without cleft

Oral microbiota composition · Individuals assessed for oral microbiota (mainly children and adolescents)

Oral microbiota composition differs between persons with orofacial cleft and healthy controls, synthesized qualitatively across 8 studies but not meta-analyzed (ungraded).

1 finding from 1 review

Cleft lip and/or palate (CL/P) vs Healthy controls without cleft

Probing pocket depth · Individuals assessed for periodontal health (mainly children and adolescents, age >2 years)

Persons with orofacial cleft have a greater probing pocket depth than healthy controls (MD 0.88, 95% CI 0.82 to 0.95; low certainty).

1 finding from 1 review

Cleft lip and/or palate (CL/P) vs Healthy controls without cleft

Plaque · Individuals assessed for periodontal health (mainly children and adolescents, age >2 years)

Persons with orofacial cleft have a higher plaque index than healthy controls (MD 0.29, 95% CI 0.24 to 0.34; low certainty).

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