Question · asked by 1 review

Low polymerization shrinkage resin composite (silorane, ormocer, bulk-fill or other modified-monomer composite) vs Conventional methacrylate-based resin composite: Marginal discoloration

Population
People with permanent posterior teeth restored with class I or II direct restorations
Intervention
Low polymerization shrinkage resin composite (silorane, ormocer, bulk-fill or other modified-monomer composite)
Comparison
Conventional methacrylate-based resin composite
Outcome
Marginal discoloration

At 24 months, marginal discoloration did not differ significantly (7 groups; p = 0.77; ungraded).

What each review found

Include earlier review versions
No studies found 0 · 0%GRADE not reported 4 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%
FindingEffectStudiesGRADE certainty
Low polymerization shrinkage resin composite (silorane, ormocer, bulk-fill or other modified-monomer composite) vs Conventional methacrylate-based resin composite
Marginal discoloration · People with permanent posterior teeth restored with class I or II direct restorations · 24 months, Posterior class I/II restorations in permanent teeth; multicenter randomized controlled trials conducted across Europe, the Americas, and the Middle East
At 24 months, marginal discoloration did not differ significantly (7 groups; p = 0.77; ungraded).
Meta-analysis of the clinical behavior of posterior direct resin restorations: Low polymerization shrinkage… (2018) All outcomes
Odds ratio (OR) 1.08 [0.64, 1.84]6 studiesGRADE not reported
Low polymerization shrinkage resin composite (silorane, ormocer, bulk-fill or other modified-monomer composite) vs Conventional methacrylate-based resin composite
Marginal discoloration · People with permanent posterior teeth restored with class I or II direct restorations · 60 months, Posterior class I/II restorations in permanent teeth; multicenter randomized controlled trials conducted across Europe, the Americas, and the Middle East
At 60 months, marginal discoloration did not differ significantly (3 groups; ungraded).
Meta-analysis of the clinical behavior of posterior direct resin restorations: Low polymerization shrinkage… (2018) All outcomes
Two articles (three experimental groups) evaluated marginal discoloration after 60 months; the meta-analysis showed no difference in the overall effect.2 studiesGRADE not reported
Low polymerization shrinkage resin composite (silorane, ormocer, bulk-fill or other modified-monomer composite) vs Conventional methacrylate-based resin composite
Marginal discoloration · People with permanent posterior teeth restored with class I or II direct restorations · 12 months, Posterior class I/II restorations in permanent teeth; multicenter randomized controlled trials conducted across Europe, the Americas, and the Middle East
Marginal discoloration at 12 months did not differ significantly between low polymerization shrinkage and methacrylate composites (OR 1.53, 95% CI 0.98 to 2.41; Moderate certainty).
Meta-analysis of the clinical behavior of posterior direct resin restorations: Low polymerization shrinkage… (2018) All outcomes
OR 1.53 [0.98, 2.41]13 studies · 2082 participantsGRADE not reported
Low polymerization shrinkage resin composite (silorane, ormocer, bulk-fill or other modified-monomer composite) vs Conventional methacrylate-based resin composite
Marginal discoloration · People with permanent posterior teeth restored with class I or II direct restorations · 18 months, Posterior class I/II restorations in permanent teeth; multicenter randomized controlled trials conducted across Europe, the Americas, and the Middle East
At 18 months, marginal discoloration did not differ significantly between the composites (2 studies; ungraded).
Meta-analysis of the clinical behavior of posterior direct resin restorations: Low polymerization shrinkage… (2018) All outcomes
Only two articles, both testing silorane resins, evaluated marginal discoloration after 18 months; one favored the experimental group and one the control group, with the meta-analysis showing no difference in the…2 studiesGRADE not reported

Findings are shown side by side, never pooled across reviews.

The reviews

ReviewSearched up toIncluded studiesAMSTAR 2
Meta-analysis of the clinical behavior of posterior direct resin restorations: Low polymerization shrinkage resin in comparison to…
2018 All outcomes
Not specified23Critically Low / Critically Low
How reviews are matched to this question

Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.