Tooth loss prevalence
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Global Tooth Loss Prevalence Trends
Recent research shows that the global prevalence of severe tooth loss has significantly declined over the past decades. Between 1990 and 2010, the worldwide age-standardized prevalence of people without any teeth (edentate) dropped from 4.4% to 2.4%. The incidence rate of new cases also decreased, with no significant differences found between men and women in 2010. However, tooth loss prevalence increases with age, especially after age 65, and there are notable differences between countries and regions in both prevalence and the rate of improvement over time .
Regional and Country-Specific Tooth Loss Prevalence
United States
In the U.S., the prevalence of complete tooth loss among adults aged 65 and older has decreased from 29.3% in 1999-2000 to 12.6% in 2017-2018. Despite this improvement, disparities persist, with higher rates of tooth loss among those with lower socioeconomic status and among certain racial and ethnic groups 69.
Europe
European countries have also seen a decline in tooth loss and edentulism, though there are still large differences between countries and regions. The mean number of lost teeth increases with age, and many older adults still have reduced dentitions that may require prosthodontic treatment. Institutionalized elderly people generally have fewer teeth than those living independently. The World Health Organization’s goal of retaining at least 20 teeth at age 80 is being approached in some countries but has not yet been met .
China
In Guangdong, Southern China, the prevalence of tooth loss among adults aged 35-44 was 40.8% in 1995, 42.9% in 2005, and dropped to 33.3% in 2015. The decline was more pronounced in the last decade. Tooth loss was more common among those with lower education, caries, periodontal disease, women, rural residents, and those with poor oral health behaviors .
India
A study in rural South India found an overall tooth loss prevalence of 48.7%. Tooth loss was more common in older adults, males, and was most often due to dental caries, followed by periodontal disease. The most frequently missing teeth were mandibular first molars .
Age, Socioeconomic, and Racial Disparities in Tooth Loss
Tooth loss prevalence increases with age, with a steep rise after age 65 18. Socioeconomic status is a strong predictor, with higher prevalence among those with lower income and education levels 2679. Racial disparities are also evident; for example, in Brazil, Black/Brown adults had a higher prevalence of tooth loss than white adults, especially among those who had never experienced poverty, indicating complex interactions between race and social mobility .
Tooth Loss in Special Populations
Institutionalized adolescents and elderly people tend to have higher rates of tooth loss compared to their peers living in the community. Among institutionalized adolescents, the prevalence of tooth loss was 47.1%, with higher rates associated with untreated decay and daily medication use . Similarly, institutionalized elderly in Europe have more compromised oral health than those living independently .
Risk Factors and Common Patterns
The most common reasons for tooth loss are dental caries and periodontal disease 345. Other risk factors include previous tooth loss, seeking dental care only when in pain, and poor oral hygiene. The first and second molars, especially in the lower jaw, are most frequently lost 23510. Men are generally more likely to lose teeth than women, though some recent data suggest higher risk among women in certain regions 210.
Conclusion
Tooth loss prevalence is declining globally and in many regions, but significant disparities remain based on age, socioeconomic status, race, and institutionalization. Dental caries and periodontal disease are the main causes, and preventive efforts should focus on at-risk groups to further reduce the burden of tooth loss worldwide 1234+6 MORE.
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