Severe periodontitis is one of the most prevalent diseases and a global public health problem due to its high incidence and prevalence. However, there are few studies on the burden of periodontitis in different regions of the world.

中文翻译：

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1990 年至 2019 年全球 21 个地区和全球重度牙周炎发病率、患病率和残疾调整生命年的流行病学和社会人口学转变：一项年龄段队列分析

重度牙周炎由于其发病率和流行率高，是最常见的疾病之一，也是全球性的公共卫生问题。然而，关于世界不同地区牙周炎负担的研究很少。