World Oral Health Day is observed every year on March 20 to highlight how healthy teeth, gums, and mouth are essential for overall health, confidence, and quality of life. The day is led globally by the FDI World Dental Federation and brings together dentists, hygienists, public health experts, schools, and communities to promote better oral hygiene for all ages.
Oral health is about more than just a nice smile. The mouth is the gateway to the body. Untreated tooth decay, gum disease, and oral infections can cause pain, difficulty eating, problems with speech, poor school and work performance, and social embarrassment. Poor oral health is also linked to serious conditions such as diabetes, heart disease, stroke, and complications in pregnancy. Yet most oral diseases are largely preventable with simple daily habits and regular professional care.
History and key facts
World Oral Health Day has its roots in global dental advocacy but has been officially celebrated on March 20 since 2013 under the leadership of the FDI World Dental Federation. The date 20/3 was chosen to symbolise that older adults should have at least 20 natural teeth at the end of their life, and that children should have all 20 primary teeth, reflecting a life-course approach to oral health.
Since 2013
- observed annually on March 20 with a new global theme each year
- focusing on prevention
- awareness
- and access to care.
Global burden
- oral diseases affect an estimated 3.5 billion people worldwide
- making them among the most common noncommunicable diseases.
Most common problems
- dental caries (tooth decay)
- gum disease
- tooth loss
- oral cancer
- oral infections
- and trauma to the teeth and jaw.
Major risk factors
- high sugar intake in food and drinks
- poor brushing and flossing habits
- use of tobacco and betel nut
- harmful alcohol use
- and lack of regular dental check-ups.
Prevention is possible
- brushing twice daily with fluoride toothpaste
- cleaning between teeth
- limiting sugary snacks and drinks
- avoiding tobacco and betel quid
- and regular visits to a dentist can prevent many oral problems.
Why it matters
World Oral Health Day matters because oral diseases are common, painful, and costly to treat, but they are often overlooked in health planning. Tooth decay and gum disease rarely cause sudden emergencies at first. They grow slowly and quietly, which means people delay visiting the dentist until pain becomes severe. By this time, treatment is more complex and expensive, and teeth may need extraction instead of simple fillings.
The day encourages people to move from a “treat when it hurts” mindset to a “prevent and check regularly” approach. It promotes key messages such as brushing teeth twice daily with fluoride toothpaste, using a soft toothbrush and proper technique, flossing or using interdental cleaners, limiting sugary foods and drinks (especially between meals), drinking safe water, and visiting a dentist at least once a year even when there is no pain. It also calls on governments and health systems to integrate oral health into primary care, ensure fluoridated products are available, and improve access to essential dental services.
In Bangladesh
In Bangladesh, oral health problems are widespread but often neglected. Many people live with untreated tooth decay, gum disease, tooth loss, bad breath, and poorly fitting dentures. Awareness about the link between oral health and overall health is still limited, and many people only seek dental care when pain becomes intolerable.
Chewing betel leaf with areca nut (supari), smokeless tobacco (zarda, gul), and smoking are major contributors to gum disease, tooth wear, and oral cancer in Bangladesh. Frequent consumption of sugary tea, biscuits, soft drinks, and sweets increases the risk of cavities in both children and adults. In rural areas, access to trained dentists and affordable dental treatment is limited, and some people still rely on unqualified “tooth-pullers” or traditional remedies, which can cause further harm.
On World Oral Health Day, dental colleges, hospitals, NGOs, and professional associations in Bangladesh organise awareness rallies, free dental check-up camps, school-based brushing demonstrations, and community education sessions. They teach children and parents how to brush properly, explain the dangers of tobacco and betel nut, and encourage regular visits to qualified dentists. Media campaigns and social media posts share simple messages: brush twice daily, reduce sugar, avoid tobacco, and protect your smile.
There is growing recognition that oral health must be integrated into national noncommunicable disease programmes. Strengthening school oral health programmes, improving training for dentists and dental hygienists, and expanding affordable services in district and upazila health complexes are important priorities. By joining the global World Oral Health Day movement, Bangladesh aims to reduce the burden of oral disease and ensure that more people can enjoy a healthy mouth and a confident smile throughout life.
Frequently asked questions
- When is World Oral Health Day observed?
- World Oral Health Day is observed every year on March 20, led globally by the FDI World Dental Federation to promote good oral hygiene and awareness about oral diseases.
- What causes most oral health problems?
- Most oral health problems are caused by poor brushing habits, high sugar intake in foods and drinks, use of tobacco and betel nut, not cleaning between the teeth, and skipping regular dental check-ups.
- How can I protect my oral health on a daily basis?
- Brush your teeth twice a day with fluoride toothpaste, use floss or interdental cleaners, limit sugary snacks and soft drinks, avoid tobacco and betel quid, and visit a dentist at least once a year even if you do not have pain.
- Are oral diseases linked to other health problems?
- Yes. Poor oral health is linked to diabetes, heart disease, stroke, lung infections, and complications in pregnancy, so taking care of your mouth also helps protect your overall health.
- Why is World Oral Health Day important for children?
- This day highlights the need to protect children’s teeth from an early age through proper brushing, limiting sweets, regular dental check-ups, and avoiding harmful habits, so they can grow up with healthy teeth and better nutrition, speech, and confidence.

