16% Hydrogen Peroxide Whitening Gel — Professional Guide
Gentle, predictable shade lift for light stains and sensitivity‑prone clients. Includes indications, chairside protocol, mitigation plan, and how to upgrade when needed.
Clinically reviewed by David Hanna, RDH — Registered Dental Hygienist
Clinical Indications & Contraindications
Indications
Light extrinsic staining (coffee, tea, wine) with sensitivity concerns
First‑time whitening or patients anxious about intensity
Polish/refresh for previously whitened patients
Contraindications & Cautions
Active pathology (caries/periodontal issues) — treat before whitening
Large restorations in the esthetic zone; discuss shade match expectations
Mechanism of Action
16% HP provides controlled diffusion through enamel and dentin with a lower sensitivity profile, making it a quality entry point to chairside whitening.
Step‑by‑Step Protocol (16% HP)
1) Preparation
Baseline shade & photos; prophy as needed
Retractors; dry field
2) Isolation
Cotton rolls; barrier if gel proximity to gingiva
3) Application
1–2 mm even layer; fresh ribbon per cycle
LED optional
4) Timing
2 cycles × 15–20 minutes; agitate mid‑cycle
5) Finish
Rinse thoroughly; consider desensitizer
6) Aftercare
24–48 hr white diet; suggest CP pen and purple toothpaste
Sensitivity Risk & Mitigation
Risk Factors
Exposed dentin; aggressive brushing
History of sensitivity to prior whitening
Mitigation
Shorter cycles (12–15 min) for nervous clients
Desensitizer; cool/neutral drinks; analgesic per clinic policy
Case Scenarios
Light stains
2 × 15–20 min. If lift plateaus, schedule recall with 25% HP.
Post‑whitening refresh
Single appointment, 2 cycles; maintain with CP pen.
Troubleshooting & Common Pitfalls
Uneven lift: Improve dryness and gel uniformity; agitate mid‑cycle.