Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,297 questions · 3,638 findings · 215 reviews · Oral Health

No studies found 98 · 2.7%GRADE not reported 2,946 · 81%Very low 263 · 7.2%Low 158 · 4.3%Moderate 137 · 3.8%High 36 · 1%

Pulp-status assessment method

Pulp necrosis · Vital teeth

The pooled incidence with radiographic assessment was 4.95%.

2 findings from 1 review

Pilocarpine vs placebo

Xerostomia (dry mouth relief) · Patients with radiation-induced salivary gland dysfunction
1 finding from 1 review

Pilocarpine vs placebo

Other oral symptoms (oral discomfort, dysphonia) · Patients with radiation-induced salivary gland dysfunction
1 finding from 1 review

Pilocarpine vs placebo

Adverse effects (side effects; treatment withdrawals) · Patients with radiation-induced salivary gland dysfunction
1 finding from 1 review

Pilocarpine vs Artificial saliva

Dry mouth (xerostomia) · Patients with radiation-induced salivary gland dysfunction
1 finding from 1 review

Pilocarpine vs Artificial saliva

Adverse effects (side effects; treatment withdrawals) · Patients with radiation-induced salivary gland dysfunction
1 finding from 1 review

All exposure-OHRQoL estimates pooled for publication-bias correction (meta-trim sensitivity); specific exposure set not defined in source vs Not specified

Poor oral health-related quality of life (OHRQoL) · Children aged 3-12 years

A trim-and-fill sensitivity analysis pooling every exposure estimate gave an overall OR of 0.17 (95% CI 0.13-0.21) after correcting for significant publication bias (Fig. 13); this combined estimate spans heterogeneous exposures and is a publication-bias sensitivity result (ungraded).

1 finding from 1 review

E-cigarette aerosol / e-liquid exposure (flavored and unflavored; nicotine and non-nicotine) vs Unexposed controls / unflavored e-liquid / conventional cigarette smoke

Enamel/dental hard-tissue changes and e-liquid cariogenic properties (demineralization, colour change, pH, sugar content, metals) · Oral bacteria (streptococci), dental hard tissue (enamel/dentin) and e-liquids studied in vitro/ex vivo (with a few clinical microbiome…

In vitro evidence suggests e-liquids are often acidic and sugar-containing and can alter enamel/dentin colour and properties, supporting a plausible cariogenic effect, but findings are heterogeneous and not pooled (ungraded, narrative).

1 finding from 1 review

Oral cancer patients (cases) vs Healthy controls

Periodontal parameters (all measures pooled) in OC cases vs controls · Adults in case-control studies (oral cancer patients vs healthy controls)

Pooling all periodontal measures, oral cancer patients had worse periodontal status than controls (SMD 0.95, 95% CI 0.41-1.49; very high heterogeneity, I2=96.8%); ungraded. Note this pools clinically different measures.

1 finding from 1 review

rs10974056 effect allele A (intron variant in GLIS3, chr9:3,889,264) vs Non-effect allele C

Dental caries · Adults from Japanese and European cohorts (present-study Japanese direct-to-consumer cohort + GLIDE consortium and UK Biobank European…

Meta-analysis identified a novel genome-wide-significant locus for dental caries at rs10974056 in GLIS3 (P=3.93E-08); ungraded.

1 finding from 1 review

rs4801882 effect allele G (intron variant in SIGLEC5, chr19:52,127,053) vs Non-effect allele A

Dental caries · Adults from Japanese and European cohorts (present-study Japanese direct-to-consumer cohort + GLIDE consortium and UK Biobank European…

Meta-analysis identified a novel genome-wide-significant locus for dental caries at rs4801882 in SIGLEC5 (P=1.71E-08); ungraded.

1 finding from 1 review

Malocclusion vs No malocclusion

Impaired OHRQoL measured with CPQ 11-14 (quantitative synthesis / meta-analysis) · Adolescents (10-19 years)

Malocclusion (DAI) probably increases the prevalence of impaired OHRQoL (CPQ 11-14) by about 15% in adolescents (RR/PR 1.15, 95% CI 1.12-1.18; moderate certainty).

1 finding from 1 review

P11-4 + fluoride varnish vs CPP-ACP

Remineralization / reduction in lesion severity (change in QLF, laser fluorescence, or lesion area) · People or specimens with white spot lesions or early caries lesions

The NMA estimated an SMD of -0.78 for P11-4 + fluoride varnish versus CPP-ACP (95% CI -1.33 to -0.28).

1 finding from 1 review

Learning disability (CLD) vs No learning disability (CNLD)

Unmet dental treatment need · Children aged 1-18 years

Narrative reports from 6 studies suggested greater unmet dental treatment need in children with learning disabilities (5 of 6 studies), but no quantitative data were available (certainty not graded).

1 finding from 1 review

Older adults (population mean age >33.4 years) vs Younger adults (population mean age <=33.4 years)

Caries experience (mean DMFT) · Adults aged 19-60 years

Studies of older adults (mean age >33.4 years) had higher pooled DMFT than younger adults, but the age to DMFT meta-regression was not statistically significant; ungraded observational evidence.

5 findings from 1 review
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Populations with low socioeconomic status (>=22.4% of the population with low SES) vs Populations with higher socioeconomic status (<22.4% of the population with low SES)

Caries experience (mean DMFT) · Adults aged 19-60 years

Populations with a higher proportion of people with low socioeconomic status had higher caries experience (pooled DMFT 15.99 vs 5.50), and meta-regression associated low SES with higher DMFT (about 10.35 more DMFT per unit; p=0.050); ungraded observational evidence.

5 findings from 1 review
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