On April 2, 2025, Mahidol University Faculty of Dentistry organized activities and free dental treatments to commemorate the birthday anniversary of Her Royal Highness Princess Maha Chakri Sirindhorn. The event included a blessing ceremony to pay tribute to Her Royal Highness, along with free dental services such as fillings, extractions, wisdom tooth surgery, emergency root canal treatment, scaling, pediatric dental care, and dental X-rays. Each patient was eligible for one treatment.

In addition to the dental services, activities were held to promote oral health awareness, encouraging the public to maintain good oral hygiene and overall dental care.

The treatments were provided at the Dental Hospital, Mahidol University Faculty of Dentistry (Victory Monument, Bangkok), for 1,260 adults and 100 children, and at Maha Chakri Sirindhorn Dental Hospital, Nakhon Pathom Province, for 280 adults and 40 children.