Philips Sonicare DiamondClean 9000 Series HX9911/84 Special edition sonic electric toothbrush

The Philips Sonicare DiamondClean 9000 Series HX9911/84 is a sonic electric toothbrush for adults that uses advanced Sonicare technology to help achieve whiter teeth in just 3 days*. It combines multiple brushing modes, adjustable intensities and a built-in Lithium‑Ion battery in a single handle with one brush head included. The toothbrush is designed to be gentle on gums and connects to a mobile app for coaching and brushing tracking.

Advantages

The DiamondClean 9000 offers four modes—Daily care, Deep clean, Gum care and Whitening—and three intensity levels to personalise your routine. Its sonic action provides effective plaque removal while being gentle on soft tissues. An integrated timer and app connectivity help you maintain recommended brushing time and technique.

Suitable for

Key specifications

How to use

Attach the brush head to the handle, select a mode and intensity, and place the brush at a 45° angle to the gum line. Guide the brush slowly across each tooth surface, allowing the sonic action to clean; do not scrub. Follow the integrated timer and app prompts to ensure two minutes of brushing and to cover all quadrants evenly. Charge the handle as needed using the supplied charger.

Recommendations

Use twice daily for optimal results and follow app guidance for personalised coaching. Replace the brush head every three months or sooner if bristles are frayed. Consult your dental professional for specific oral health concerns.