Global and regional trends in prevalence of untreated caries in permanent teeth: Age-period-cohort analysis from 1990 to 2019 and projections until 2049.

Objectives: This study aims to update the relevant epidemiological information of untreated caries in permanent teeth.

Methods: Data were derived from the Global Burden of Disease (GBD) study 2019. We described temporal trends in age-standardized prevalence rate (ASPR) of untreated caries in permanent teeth by gender and region from 1990 to 2019.

Global, regional, and national burden of oral cancer and its attributable risk factors from 1990 to 2019.

Background: This study aims to provide a theoretical basis for the prevention of oral cancer by analyzing the epidemiological trends of oral cancer.

Materials And Methods: The data on oral cancer from 1990 to 2019 were extracted from the Global Burden of Disease 2019 database. The incidence, mortality, disability-adjusted life years (DALYs), and age-standardized rate as well as attributable risk factors of oral cancer were used for the analysis.