Oral-B Pro 3 Electric Toothbrush - Black

For optimal battery life, it's recommended to place the toothbrush on its charger when not in use. However, a full charge provides up to 14 days of regular use, so you can also charge it as needed, especially before travel.

Dentists recommend replacing your brush head every three months. Oral-B brush heads often have blue indicator bristles that fade halfway to white, signaling it's time for a replacement.

The handle is water-resistant and designed to be used in the bathroom. However, avoid submerging the charging base in water, and do not use the toothbrush while showering or bathing.

The `Daily Clean` mode is for thorough everyday plaque removal. `Whitening` mode helps to polish away surface stains for brighter teeth. `Sensitive` mode provides a gentler clean for users with sensitive gums or teeth.

Yes, the Oral-B Pro 3 3500 is compatible with a wide range of Oral-B round brush heads designed for oscillating-rotating electric toothbrushes. Ensure you use genuine Oral-B replacement heads for best results.

The pressure sensor protects your gums and teeth. If you brush too hard, a red light will illuminate on the handle, alerting you to reduce pressure. This prevents damage from over-brushing.

Ensure the toothbrush is fully charged. Place it on the charging base for at least 24 hours for the initial charge, or several hours for subsequent charges. Check that the charging base is plugged into a working outlet.

The red light indicates you're brushing too hard. Try to reduce pressure during brushing. If it doesn't activate, ensure the brush head is securely attached and that you are applying sufficient, but not excessive, pressure to your teeth.

Make sure you performed the initial 24-hour charge. Battery life can vary based on brushing frequency and mode usage. If the issue persists, ensure the charging contacts on both the handle and base are clean and dry.

Ensure you are replacing your brush head every three months as recommended. Also, verify you are using proper brushing technique, allowing the brush to do the work rather than scrubbing vigorously. Utilize the integrated timer to ensure you brush for the full two minutes, covering all quadrants of your mouth.

Ensure the brush head is pushed firmly onto the handle's metal shaft until it clicks into place. If using non-Oral-B branded brush heads, compatibility issues might arise. Always use genuine Oral-B replacement heads.