1. Introduction
This manual provides essential information for the safe and effective use of your Panasonic EW-DP38-W Doltz Sonic Vibration Toothbrush. Please read these instructions thoroughly before first use and retain them for future reference. This advanced electric toothbrush utilizes W sonic vibrations and an interdental fit brush to deliver superior oral hygiene.

The Panasonic EW-DP38-W Doltz Sonic Vibration Toothbrush, shown alongside its product packaging, highlighting its sleek white design and the included interdental fit brush.
2. Package Contents
Verify that all the following items are included in your package:
- Panasonic EW-DP38-W Doltz Sonic Vibration Toothbrush (Main Unit)
- Interdental Fit Brush
- Charging Stand (USB Plug Type-A)
3. Setup
3.1 Charging the Toothbrush
- Connect the USB plug of the charging stand to a compatible USB power adapter (not included) or a USB port.
- Place the toothbrush main unit onto the charging stand. Ensure it is seated correctly.
- The charging indicator light on the toothbrush will illuminate to confirm charging. Allow the toothbrush to charge fully before first use.
3.2 Attaching the Brush Head
- Align the brush head with the shaft of the toothbrush main unit.
- Push the brush head down firmly until it clicks into place. Ensure it is securely attached before use.

An illustration detailing the internal mechanism of the Panasonic Doltz toothbrush and a close-up of the interdental fit brush, designed for effective cleaning between teeth.
4. Operating Instructions
4.1 Powering On/Off and Mode Selection
- To power on, press the power button once.
- To change brushing modes, press the mode button repeatedly until your desired mode is selected. The available modes are: W Clean Mode, W Gum Mode, Clean Mode, Soft Mode, and Sensitive Mode.
- To power off, press and hold the power button for a few seconds, or the toothbrush will automatically turn off after the recommended brushing time.
4.2 Brushing Technique
Apply a small amount of toothpaste to the brush head. Place the brush head against your teeth at a slight angle towards the gum line. Move the brush slowly from tooth to tooth, allowing the W sonic vibrations to clean effectively. Do not scrub vigorously. The toothbrush features a pressure sensor that will notify you with a sound if excessive pressure is applied, helping to protect your gums and teeth.

This diagram explains the W sonic vibration technology, demonstrating how horizontal and tapping vibrations work together to remove plaque effectively from tooth surfaces and interdental spaces.
4.3 Doltz Application (Optional)
For enhanced oral care, the Doltz application can be used to track brushing data and provide real-time support. While the EW-DP38-W model does not feature Bluetooth connectivity, the app can still offer general guidance on brushing techniques and brush head selection.

The Doltz application interface, which provides real-time brushing support, records brushing data, and assists in selecting and replacing brush heads for optimal oral care.
5. Maintenance
5.1 Cleaning the Toothbrush
- After each use, rinse the brush head thoroughly under running water.
- Wipe the main unit with a damp cloth. Do not immerse the main unit in water.
- Ensure the charging stand is kept clean and dry.
5.2 Brush Head Replacement
For optimal cleaning performance and hygiene, it is recommended to replace the brush head approximately every three months, or sooner if the bristles appear splayed or worn.

An illustration indicating the recommended brush head replacement schedule, advising replacement every three months or when bristles show signs of wear, such as splaying.

A close-up view of the interdental fit brush head, showcasing its mountain-cut bristles for reaching between teeth and hybrid bristles for efficient plaque removal from tooth surfaces and gum lines.
6. Troubleshooting
- Toothbrush does not turn on: Ensure the toothbrush is fully charged. If the issue persists, try charging it again or contact customer support.
- Vibrations feel weak: Ensure the brush head is securely attached. If the battery is low, charge the toothbrush.
- Charging indicator not working: Check if the charging stand is properly connected to a power source. Ensure the toothbrush is correctly placed on the stand.
- Excessive pressure warning: The toothbrush features a pressure sensor. If you hear a warning sound, reduce the pressure applied to your teeth and gums.
7. Specifications
| Brand | Panasonic |
| Model Number | EW-DP38-W |
| Vibration Method | W Sonic Vibration |
| Vibration Frequency (Horizontal) | Approx. 31,000 brush strokes/minute |
| Vibration Frequency (Tapping) | Approx. 20,000 brush strokes/minute |
| Modes | W Clean, W Gum, Clean, Soft, Sensitive |
| Special Features | Pressure Sensor, Comfortable Grip, Rechargeable |
| Included Components | Interdental Fit Brush, Charging Stand (USB Type-A) |
| Product Dimensions (H x W x D) | Approx. 23.3 x 2.4 x 2.6 cm (9.2 x 0.9 x 1.0 inches) |
| Product Weight | Approx. 95 g (including brush) |
| Color | White |
| Bristle Material | Nylon |
| Handle Material | Plastic |
| Country of Origin (Main Unit) | Japan |
| Country of Origin (Charger) | China |
| Country of Origin (Brush) | Thailand |
8. Warranty and Support
Your Panasonic EW-DP38-W Doltz Sonic Vibration Toothbrush is covered by a manufacturer's warranty. Please refer to the warranty card included with your product for specific terms and conditions. For technical support, replacement parts, or further assistance, please visit the official Panasonic website or contact their customer service department.
You can find more information and support on the Panasonic Store on Amazon.





