Oral health plays a critical role in overall health. Poor dental hygiene is linked to heart disease, diabetes, and even Alzheimer’s. Yet, oral diseases affect nearly 3.5 billion people worldwide.
To understand the current state of oral health, we’ve compiled recent statistics from authoritative sources like the CDC, WHO, ADA, and NIH. These numbers reveal trends in dental hygiene, cavities, gum disease, and the financial barriers to dental care.
Key Takeaways
✔ 3.5 billion people suffer from oral diseases worldwide
✔ Cavities affect over 90% of adults
✔ Gum disease impacts nearly half of adults aged 30+
✔ 76.5 million U.S. adults lack dental insurance
1. General Oral Health Statistics
These stats give a broad view of how common oral health issues are worldwide.
- Nearly 3.5 billion people suffer from oral diseases, making it one of the most widespread health conditions globally.
- 90% of adults worldwide have had at least one cavity.
- Around 45% of adults aged 30+ show signs of gum disease.
- The U.S. spends $124 billion annually on dental care.
- About 25% of U.S. adults have untreated cavities.
2. Oral Diseases and Common Dental Issues
Cavities, gum disease, and oral cancer are some of the most common issues people face.
- Over 2.5 billion people worldwide suffer from cavities in permanent teeth.
- Gum disease affects 47% of adults aged 30+, and 70% of seniors aged 65+.
- Oral cancer cases have increased by 30% in the last decade.
- Tobacco users are 10 times more likely to develop oral cancer.
- 400+ commonly used medications cause dry mouth, increasing the risk of cavities.
3. Children’s Oral Health Statistics
Dental problems start early in life, making pediatric care essential.
- More than 50% of U.S. children (ages 6-8) have had a cavity in their baby teeth.
- Tooth decay is the most common chronic disease in children, affecting over 45% of kids worldwide.
- 25% of U.S. children from low-income families develop cavities, compared to 11% from higher-income families.
- Children with poor oral health are 3x more likely to miss school due to dental pain.
- Only 48% of U.S. children visit the dentist twice a year, as recommended.
4. Adult and Senior Oral Health Statistics
As people age, oral health problems become more common.
One in five seniors has untreated tooth decay or other gum problems before starting braces, these issues may worsen during treatment. Weak or inflamed gums are more prone to recession, especially under the added stress of orthodontic movement. s a day, only removing them to eat, drink, and clean your teeth.
25% of U.S. adults over 60 have lost all their teeth.
42% of West Virginians aged 65+ are completely toothless, the highest rate in the U.S.
Older adults with poor oral health have a 30% higher risk of heart disease.

5. Dental Hygiene and Preventive Care Statistics
Brushing, flossing, and professional cleanings are essential for preventing oral disease.
- Only 68% of Americans brush their teeth twice a day.
- Fluoride varnish reduces cavities in children by 33%.
- Dental sealants prevent 80% of cavities on back teeth.
- Antiseptic mouthwash is 4.6 times more effective than flossing alone.
6. The Cost of Dental Care & Insurance Coverage
- Nearly 76.5 million U.S. adults have no dental insurance.
- 46% of Americans skip dental care due to cost.
- Providing fluoridated water saves the U.S. $6.5 billion annually.
7. The Impact of COVID-19 on Dental Health
The pandemic disrupted access to routine dental care.
- Nearly 40% of Americans skipped dental visits in 2020 due to COVID-19.
- Cavity rates increased by 30% among children after dental care disruptions.
Final Thoughts: What These Stats Tell Us
These statistics highlight the urgent need for better dental care access. Oral diseases affect billions of people, yet most cases are preventable.
Want to stay on top of your oral health? Brush twice a day, floss, and schedule regular check-ups! the benefits of braces without compromising your oral health.