Laser/light-activated bleaching vs Conventional (non-laser) bleaching with hydrogen or carbamide peroxide: Enamel microhardness / caries susceptibility
- Population
- Permanent teeth / enamel specimens (in vitro)
- Intervention
- Laser/light-activated bleaching
- Comparison
- Conventional (non-laser) bleaching with hydrogen or carbamide peroxide
- Outcome
- Enamel microhardness / caries susceptibility
Low-quality in vitro evidence found no support for adding lasers to in-office bleaching; laser-activated bleaching did not appear to affect enamel microhardness or caries risk versus conventional bleaching (ungraded).
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Laser/light-activated bleaching vs Conventional (non-laser) bleaching with hydrogen or carbamide peroxide Enamel microhardness / caries susceptibility · Permanent teeth enamel (in vitro specimens) · In vitro laboratory studies Low-quality in vitro evidence found no support for adding lasers to in-office bleaching; laser-activated bleaching did not appear to affect enamel microhardness or caries risk versus conventional bleaching (ungraded). Is Bleaching Effective in Managing Post-orthodontic White-spot Lesions? A Systematic Review. (2020) All outcomes | In two studies having high risk of bias, laser-activated bleaching did not seem to affect enamel microhardness or caries risk when compared to conventional bleaching with hydrogen or carbamide peroxide. | 2 studies | GRADE not reported |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Is Bleaching Effective in Managing Post-orthodontic White-spot Lesions? A Systematic Review. 2020 All outcomes | 2018-07-01 | 15 | Low / Critically Low |
Studies behind the findings
The primary studies the full-text reviews tie to this outcome. Reviews with headline outcomes only do not list them here.
- Evaluation of the Effect of Different Laser Activated Bleaching Methods on Enamel Susceptibility to Caries; An In Vitro Mode. · 2017 · included by 1 of these review
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.