Protein biomarkers of periodontitis in saliva.

ISRN Inflamm · 2014 · PMC4040190 · PMID 24944840

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an increasing trendno p-value reported

Some 9% of the UK population suffer from advanced periodontitis according to the 2009 Adult Dental Health Survey (ADHS) as compared to 6% as recorded by the 1998 ADHS suggesting that there is an increasing trend toward more severe disease in the UK, possibly due to greater retention of natural teeth [ 7 ].

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