Introduction
This manual provides essential information for the proper use and maintenance of your Philips Sonicare C3 Premium Plaque Defense electric toothbrush replacement heads. These brush heads are designed to work with compatible Philips Sonicare handles to deliver effective plaque removal.
Product Features
- Compatibility: Designed for use with all Philips Sonicare handles, including DiamondClean and ProtectiveClean models.
- Plaque Removal: Engineered to remove up to 10 times more plaque compared to a manual toothbrush.
- Targeted Cleaning: Features a power tip specifically designed to reach and clean plaque in difficult areas.
- Adaptive Cleaning Technology: Soft, flexible rubber sides adapt to the unique contours of your teeth, enhancing surface contact for thorough cleaning.

Image: The flexible bristles of the Philips Sonicare C3 Premium Plaque Defense brush head conform to the shape of teeth and gums for comprehensive cleaning.
Setup
To attach the Philips Sonicare C3 Premium Plaque Defense brush head to your compatible Philips Sonicare handle:
- Align the brush head with the metal shaft on the handle.
- Press the brush head firmly onto the handle until it clicks securely into place. Ensure there is no gap between the brush head and the handle.

Image: A detailed view of the Philips Sonicare C3 Premium Plaque Defense brush head, highlighting its bristle design and attachment mechanism.
Operating Instructions
Once the brush head is securely attached, operate your Philips Sonicare toothbrush according to the instructions provided in your specific handle's user manual. The C3 Premium Plaque Defense brush head is designed for optimal performance with Sonicare's sonic technology.
- Wet the bristles and apply a small amount of toothpaste.
- Place the brush head against your teeth at a slight angle towards the gumline.
- Turn on the toothbrush.
- Gently move the brush head slowly across each tooth surface, allowing the sonic vibrations to do the cleaning. Do not scrub.
- Brush all four quadrants of your mouth for the recommended duration (typically 2 minutes).

Image: An illustration demonstrating how the Philips Sonicare brush head effectively cleans the tooth surface and along the gumline.
Maintenance
For optimal oral hygiene and performance, it is crucial to replace your Philips Sonicare C3 Premium Plaque Defense brush head regularly.
- Replace the brush head every 3 months.
- Replace sooner if the bristles become frayed, worn, or discolored. The blue indicator bristles fade to white when replacement is needed.
- After each use, rinse the brush head thoroughly under running water to remove any toothpaste residue.

Image: An icon representing the reminder to replace the toothbrush head for continued effectiveness.
Safety Information
Please observe the following safety guidelines:
- Keep this product out of reach of children.
- Do not use this product if you have a latex allergy, as some components may contain latex.
- Always follow the instructions for use provided in this manual and your Philips Sonicare handle's user manual.
Specifications
| Item Model Number | HX9042/33 |
| Manufacturer | Philips Sonicare |
| Product Dimensions | 1.1 x 9.7 x 6.5 inches |
| Product Weight | 0.49 ounces |
| Material | Rubber |
| Age Range | Adult |
Warranty and Support
For information regarding product warranty, returns, or technical support, please refer to the documentation included with your Philips Sonicare toothbrush handle or visit the official Philips Sonicare website. Philips provides customer support for their products.
Legal Disclaimer
Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition. This product is intended for oral hygiene purposes only.