SynthesisLasers in medical science2025
Using violet light during in-office tooth bleaching to enhance the efficacy of carbamide peroxide without increasing bleaching sensitivity: a systematic review and meta-analysis.
Synthesis in Lasers in medical science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Comparative efficacy of violet light, bleaching gel, or their combination, in in-office bleaching: a systematic review and network meta-analysis.Brazilian oral research · 2026Pooled it
- Clinical myths in dental bleaching: an evidence-based structured narrative review.Brazilian oral research · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This systematic review and meta-analysis evaluated whether irradiating carbamide peroxide (CP) with violet light can enhance the effect of in-office tooth bleaching without increasing sensitivity. Searches were conducted in PubMed, Embase, Scopus, Web of Science, and Google Scholar databases. Randomized clinical trials (RCTs) that performed in-office tooth bleaching with CP irradiated with violet light or not were included in all languages and years of publication. The systematic steps followed the PRISMA protocol. The risk of bias was assessed by the RoB 2 tool. The GRADE was used to analyze the certainty of evidence. Meta-analysis was conducted with RevMan 5.4 software to evaluate tooth color change (CC) and bleaching sensitivity (BS). The CC was assessed by mean difference (MD) and the BS by risk difference (RD). Three RCTs were included in this systematic review. A statistically significant difference for CC favoring the application of violet light associated with the CP (MD, 3.35; 95% CI, 0.80, 5.89) was obtained, while no difference was found for BS (RD, 0.09; 95% CI, -0.03, 0.21). Violet light irradiation improved carbamide peroxide's in-office tooth bleaching effect without increasing sensitivity. However, the results should be interpreted with caution due to the moderate certainty of the evidence.
Indexed as
Identifiers
40346438What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.