Dentin hypersensitivity
LLLT for dentin hypersensitivity systematic review and meta-analysis
Shan Z, Ji J, McGrath C, et al. Clinical Oral Investigations. 2021.
A dentin hypersensitivity review found LLLT favorable versus placebo for immediate, interim, and persistent efficacy, though heterogeneity was high.
Evidence grade
moderate
Effect direction
positive
Panel relevance
not-panel-replicable
Key findings
- Thirty-five articles informed the review; 20 RCTs entered quantitative meta-analysis.
- LLLT showed favorable immediate, interim, and persistent outcomes versus placebo.
- LLLT was not broadly superior to other desensitizing strategies except some fluoride comparisons.
Protocol details
| Wavelengths | Not reported nm |
|---|---|
| Irradiance | Not reported mW/cm2 |
| Fluence | Not reported J/cm2 |
| Session time | Not reported minutes |
| Frequency | Dental protocol-specific |
| Duration | Immediate, interim, and persistent follow-up windows |
| Treatment area | Sensitive teeth/dentin surfaces |
| Device type | Dental low-level light therapy |
Caveats
- Substantial heterogeneity limits protocol certainty.
- This is a dental laser/light protocol, not panel-replicable.