Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,066 questions · 3,346 findings · 178 reviews · Dental caries

No studies found 48 · 1.4%GRADE not reported 2,789 · 83.4%Very low 208 · 6.2%Low 129 · 3.9%Moderate 136 · 4.1%High 36 · 1.1%

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

Cariogenic and commensal oral bacteria (S. mutans and commensal streptococci growth, adhesion, biofilm) · Oral bacteria (streptococci), dental hard tissue (enamel/dentin) and e-liquids studied in vitro/ex vivo (with a few clinical microbiome…

Most in vitro studies indicate e-cigarette aerosol/e-liquid (especially flavored/high-concentration) disrupts normal oral flora and favors cariogenic S. mutans growth and biofilm, plausibly increasing caries risk; not pooled (ungraded, narrative).

1 finding from 1 review

Silver diamine fluoride (SDF) vs placebo

Treatment success (caries lesion arrest or restoration survival) · Children (aged 3-11 y) with cavitated caries lesions in primary teeth

At 6 months, SDF had significantly higher treatment success than placebo (OR 33.62).

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

HEMA/EGDMA-based desensitizer vs Fluoride agent (e.g., NaF/SDF/KF/CaF2)

Immediate (24 h) resin-dentin bond strength (MPa) · Artificial caries-affected dentin (ACAD) in extracted permanent human teeth (in vitro)

In the Self-Etch adhesive + chemical ACAD protocol network, HEMA vs Fluorine showed no significant difference in 24 h bond strength (MD 2.500, 95% CI -2.603 to 7.603; Low certainty).

1 finding from 1 review

AI algorithms (predominantly CNN/deep learning) as index test vs Dental expert / visual-tactile clinical assessment (reference standard)

Negative likelihood ratio · Patients undergoing dental caries detection on dental images (teeth/surfaces across imaging modalities)

A negative AI test lowers caries probability substantially (LR- 0.17; negative post-test probability 6%); ungraded.

1 finding from 1 review

Replacement of the defective restoration vs Repair of the defective restoration

Composite: Preference for replacement over repair - Scenario 6: superficial discoloration · Dentists managing a defective direct resin composite restoration (posterior occlusal Class I; standardized vignette of a 30-year-old,…

For a defective composite restoration with superficial discoloration, surveyed dentists most often preferred repair over replacement (pooled RR 0.28; p < 0.001); ungraded.

1 finding from 1 review

Country-level dental caries prevalence (Global Burden of Disease) vs Low vs high dental caries prevalence

Oral health-related quality of life · people aged 60 years and older living in the community

Lower country-level dental caries prevalence was associated with better OHRQoL (low-prevalence pooled mean 81.5, 95% CI 76.5 to 86.6, higher than high-prevalence countries); statistically significant (ungraded).

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

HAART (highly active antiretroviral therapy, >=3 drugs) vs HIV-positive not receiving HAART (standard ART or HAART-naive)

Caries in primary teeth: dmft (3 years) · Children and adolescents (<18 years) living with HIV (CLWH)

Among HIV+ children, HAART versus no HAART showed no significant difference in the dmft index in case-control studies (MD 0.66, 95% CI -0.26 to 1.58; ungraded).

1 finding from 1 review

Living with HIV and undergoing antiretroviral therapy (ART/HAART) vs HIV-negative individuals

Dental caries (by severity) · Children and adolescents (<18 years) living with HIV (CLWH)

In cross-sectional studies, HIV+ children on ART had a significantly higher DMFS index than HIV-negative peers (MD 2.00, 95% CI 1.54 to 2.46; not separately GRADE-rated).

2 findings 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

Flavonoids (e.g., quercetin, proanthocyanidin) vs Calcium-based agent

Immediate (24 h) resin-dentin bond strength (MPa) · Artificial caries-affected dentin (ACAD) in extracted permanent human teeth (in vitro)

In the Self-Etch adhesive + chemical ACAD protocol network, Flavonoids vs Calcium showed no significant difference in 24 h bond strength (MD 5.728, 95% CI -2.442 to 13.897; Moderate certainty).

1 finding from 1 review

Hydroxyapatite (e.g., nano-HAp) vs Flavonoids (e.g., quercetin, proanthocyanidin)

Immediate (24 h) resin-dentin bond strength (MPa) · Artificial caries-affected dentin (ACAD) in extracted permanent human teeth (in vitro)

In the Self-Etch adhesive + chemical ACAD protocol network, HAp showed 7.520 MPa lower 24 h bond strength than Flavonoids (MD -7.520, 95% CI -14.758 to -0.281; Moderate certainty).

1 finding from 1 review