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. 2021 Jul 19;2021(7):CD013039. doi: 10.1002/14651858.CD013039.pub2

Summary of findings 3. Sealing compared to no treatment for treating cavitated or dentine carious lesions.

Sealing compared to no treatment for treating cavitated or dentine carious lesions
Population: treating cavitated or dentine carious lesions, permanent dentition
Setting: secondary care/university
Intervention: sealing
Comparison: no treatment
Outcomes Anticipated absolute effects* (95% CI) Relative effect
(95% CI) № of participants
(studies) Certainty of the evidence
(GRADE) Comments
Risk with no treatment Risk with sealing
Failure of therapy 
Follow‐up 12 months 700 per 1000 104 per 1000
(0 to 863) OR 0.05
(0.00 to 2.71) 103
(2 RCTs) ⊕⊝⊝⊝
Very lowa The evidence is very uncertain about the effect of sealing compared to no treatment.
*The risk in the intervention group (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; OR: odds ratio; RCT: randomised controlled trial.
GRADE Working Group grades of evidenceHigh certainty: we are very confident that the true effect lies close to that of the estimate of the effect.
Moderate certainty: we are moderately confident in the effect estimate: the true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different.
Low certainty: our confidence in the effect estimate is limited: the true effect may be substantially different from the estimate of the effect.
Very low certainty: we have very little confidence in the effect estimate: the true effect is likely to be substantially different from the estimate of effect.

aDowngraded three levels for high risk of bias (blinding, incomplete outcome data and selective reporting), inconsistency (I2 = 89%) and imprecision (low number of events, small sample size and wide confidence intervals).