Most patients with sensitive teeth can whiten successfully — the trick is choosing the right system, using a tailored sensitivity protocol, and addressing underlying causes first. The two systems with the lowest reported sensitivity are Enlighten Evolution (20–30% mild) and Boutique take-home (35–45% mild). High-strength in-clinic Zoom is the most aggressive and not the right starting point for sensitive patients.
Tooth sensitivity during whitening is caused by hydrogen peroxide passing through enamel and reaching the dentine, where the fluid-filled tubules transmit pressure changes to the nerve. It is not caused by enamel damage — modern peroxide gels at legal concentrations don’t damage enamel.
According to a 2023 systematic review in the Journal of the American Dental Association, the strongest predictors of whitening sensitivity are:
Manage these factors and most “sensitive” patients whiten comfortably.
| System | Peroxide strength | Sensitivity reported | Suitable for sensitive teeth? |
|---|---|---|---|
| Boutique take-home (10% carbamide) | ~3.6% hydrogen peroxide equivalent | 35–45% mild | Yes |
| Enlighten Evolution | 6% hydrogen peroxide | 20–30% mild | Best for sensitive teeth |
| Philips Zoom in-clinic | 25% hydrogen peroxide (in-clinic only) | 60–75% moderate-strong | Not first choice |
Enlighten is the system most widely recommended for sensitive patients — its lower-percentage gel and longer total treatment window allow remineralisation between applications. For comparison details, see Enlighten vs Boutique vs Philips Zoom.
For patients with known or suspected sensitivity, we follow this 4-step protocol:
Pre-treatment (2 weeks before whitening starts):
– Use Sensodyne Pronamel or Colgate Sensitive Pro-Relief twice daily
– Apply GC Tooth Mousse (CPP-ACP) nightly using your custom trays
– Avoid acidic drinks (citrus juice, fizzy drinks) and brushing immediately after them
During treatment:
– Use lower-concentration gel (10% carbamide for take-home)
– Alternate-night wear (Mon/Wed/Fri instead of nightly) for the first week
– Apply Tooth Mousse for 5 minutes after each gel session
– Pause for 24 hours if sensitivity persists
In-clinic touch-points:
– Fluoride varnish application before and after any in-clinic phase
– Desensitising gel applied to gum margins prior to in-office whitening
– Avoid Philips Zoom unless otherwise indicated
Post-treatment maintenance:
– Continue Tooth Mousse 2–3× per week for 4 weeks
– Sensitive toothpaste indefinitely
According to clinical case data, this protocol reduces moderate–severe sensitivity by approximately 70% compared to standard whitening without desensitising support.
Whitening sensitivity sometimes flags a problem that should be treated regardless. Address these before whitening:
A normal whitening course with the sensitivity protocol typically goes:
Severe sensitivity is rare on the gentle protocol but if it occurs, pause for 48 hours and apply Tooth Mousse generously. According to clinical experience, fewer than 5% of sensitive patients on the Pure Smiles protocol abandon treatment.
For pricing, see professional teeth whitening cost London. Book a sensitive whitening consultation in Fulham for a personalised plan.
Yes — most sensitive patients whiten successfully with a gentler system and the right sensitivity protocol.
Enlighten Evolution (lowest sensitivity rates) followed by Boutique take-home. High-strength Zoom in-clinic is not the first choice.
Usually 24–48 hours after treatment ends. Mild sensitivity during treatment is manageable with desensitising gel and pauses.
Pre-treatment fluoride varnish, Tooth Mousse, lower-percentage gel, alternate-night wear, and addressing underlying causes.
Address the recession first. Exposed root surfaces are more sensitive and don’t whiten like enamel.
