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. 2022 Sep 21;8(9):e10714.
doi: 10.1016/j.heliyon.2022.e10714. eCollection 2022 Sep.

Changes in the global burden of untreated dental caries from 1990 to 2019: A systematic analysis for the Global Burden of Disease study

XiaoFeng Qin  1   2 , Hao Zi  2 , XiaoJuan Zeng  1
Affiliations

Changes in the global burden of untreated dental caries from 1990 to 2019: A systematic analysis for the Global Burden of Disease study

XiaoFeng Qin et al. Heliyon. .

Abstract

Objective: To investigate the burden of untreated dental caries in 204 countries and territories over 30 years.

Methods: Data of untreated dental caries from 1990 to 2019, including the incidence, prevalence, and years lived with disability, were extracted from the Global Burden of Disease 2019 database. Estimated annual percentage changes were calculated to assess the changes in the age-standardized incidence, prevalence, and years lived with disability rates.

Results: Globally, in 2019, there were 3.09 billion (95% uncertainty interval [UI]: 2.76-3.39 billion) new cases of untreated dental caries in permanent teeth (48.00% increase), 2.03 billion (1.77-2.33) prevalent cases (46.07% increase), and 2.00 million (0.93-3.88) YLDs (45.64% increase), all since 1990. From 1990 to 2019, the age-standardized incidence rate (ASIR) of untreated dental caries in permanent teeth showed an upward trend (estimated annual percentage changes [EAPC] = 0.01), but age-standardized prevalence rate (ASPR) (EAPC = -0.13) and age-standardized YLD rate (ASYR) (EAPC = -0.13) decreased. There were 1.15 billion (0.79-1.52) new cases of untreated dental caries in deciduous teeth (11.74% increase), 0.52 billion (0.41-0.63) prevalent cases (5.89% increase), and 0.20 million (0.09-0.43) YLDs (6.03% increase), all since 1990. From 1990 to 2019, the ASIR of untreated dental caries in permanent teeth showed a stable trend (EAPC = 0), but the ASPR (EAPC = -0.15) and ASYR (EAPC = -0.14) decreased. The incidence of untreated dental caries peaked at the ages of 5-9 and 20-24 years, and the prevalence and years lived with disability at 1-4, 20-24, and 60-64 years.

Conclusion: Untreated dental caries remains a major global public health challenge, but demographic, sex, and regional differences in trends remain. Proactive intervention strategies, at both administrative and academic levels, based on dynamic changes, are needed.

Keywords: Burden of disease; Incidence; Prevalence; Untreated dental caries; Years lived with disability.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The Estimated Annual Percentage Changes (EAPCs) of untreated caries in permanent teeth Age-Standardized Rates Worldwide for (a) incidence (b) prevalence (c) YLDs. YLDs, years lived with disability.
Figure 2
Figure 2
The Estimated Annual Percentage Changes (EAPCs) of untreated caries in deciduous teeth Age-Standardized Rates Worldwide for (a) incidence (b) prevalence (c) YLDs. YLDs, years lived with disability.
Figure 3
Figure 3
The association between ASYR of untreated caries in permanent teeth and SDI for (a) 21 regions and (b) 204 countries and territories. ASYR, age-standardized years lived with disabilities rate; SDI: sociodemographic index.
Figure 4
Figure 4
The association between ASYR of untreated caries in deciduous teeth and SDI for (a) 21 regions and (b) 204 countries and territories. ASYR, age-standardized years lived with disabilities rate; SDI: sociodemographic index.
Figure 5
Figure 5
Global age pattern of prevalence and incidence of untreated caries in deciduous teeth and permanent teeth in 2019 for both sexes combined.
Figure 6
Figure 6
(a) Global incidence and (b) prevalence of and (c) YLDs for untreated caries in permanent teeth by age and sex in 2019. YLDs, years lived with disability.
Figure 7
Figure 7
(a) Global incidence and (b) prevalence of and (c) YLDs for untreated caries in deciduous teeth by age and sex in 2019. YLDs, years lived with disability.
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