Namaste! The expiry date "on or after Dec 26" for the Oral-B Vitality 100 electric toothbrush means the product is guaranteed to be fully functional until that date. After this, it may still work but its quality or performance might not meet the manufacturer's standards.

🩺 Using After Expiry Date

• The toothbrush likely remains usable but battery life or mechanical parts might degrade.
• Safety and effectiveness might decline beyond this date, so use caution.
• It’s mainly a quality assurance cutoff rather than a strict "stop use" date.

🏥 Recommendation

If you notice reduced performance or any issues after this date, consider replacing the toothbrush. For specific concerns, consult a dental specialist.

If you want, I can explain more about electric toothbrush maintenance and battery care.