Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,745 questions · 4,389 findings · 203 reviews · Oral Health

No studies found 39 · 0.9%GRADE not reported 3,844 · 87.6%Very low 198 · 4.5%Low 137 · 3.1%Moderate 134 · 3.1%High 37 · 0.8%

Hydroxyapatite (e.g., nano-HAp) vs No biomimetic remineralization (control)

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 vs Control showed no significant difference in 24 h bond strength (MD -2.916, 95% CI -5.854 to 0.023; Moderate certainty).

2 findings from 1 review

Quantitative light-induced fluorescence (QLF) vs Reference standard

detection of occlusal caries · human primary or permanent teeth with dental caries lesions

QLF had pooled sensitivity of 0.86 and specificity of 0.80 for occlusal caries (permanent dentition, in vivo).

2 findings from 1 review

Electronic cigarette use vs Non-smokers (non-users)

Plaque index (PI) / oral hygiene · Adult e-cigarette (ENDS) users (general oral health; predominantly natural dentition)

E-cigarette users tend to have a higher plaque index (more biofilm accumulation) than non-smokers (narrative synthesis of systematic reviews; ungraded).

1 finding from 1 review

Health expenditure per capita vs Higher vs lower per-capita health expenditure categories

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

OHRQoL did not differ significantly across per-capita health-expenditure categories; no pooled estimate was reported in the text (ungraded).

1 finding from 1 review

HEMA/EGDMA-based desensitizer vs Calcium phosphate agent (e.g., CPP-ACP, Ca/P-PILP, niobophosphate)

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 Calcium Phosphate showed no significant difference in 24 h bond strength (MD 0.360, 95% CI -5.589 to 6.309; Moderate certainty).

1 finding from 1 review

School-based supervised toothbrushing (STB) vs no intervention

Caries increment on tooth surfaces (dmfs/DMFS) (prevented fraction) · Children in school or kindergarten settings (aged 3-14 years)

School-based supervised toothbrushing produces a small but statistically significant reduction in tooth-surface caries (DMFS/dmfs SMD -0.22, 95% CI -0.42 to -0.01; ungraded).

1 finding from 1 review

Electronic cigarette use vs Non-smokers

Interleukin-1 beta (IL-1β) · Humans who use e-cigarettes (mostly adults, often with periodontal disease) assessed for oral proinflammatory markers

Meta-analysis suggests no significant effect of e-cigarette use on the salivary level of Interleukin-1 beta (IL-1β) (11 studies), though heterogeneity was high (I2=97%) and the pooled estimate appears only in Figure 3B (unavailable); GCF data were limited (2 study(ies)) (ungraded).

1 finding from 1 review

Hydroxyapatite (e.g., nano-HAp) 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 Etch-and-Rinse adhesive + chemical ACAD protocol network, HAp vs Fluorine showed no significant difference in 24 h bond strength (MD 4.960, 95% CI -1.806 to 11.727; Low certainty).

2 findings from 1 review

Health expenditure per capita vs Not applicable

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

No statistically significant difference in OHRQoL was reported by health expenditure per capita.

1 finding from 1 review