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Table 1 Sample demographics

From: Microbial differences between dental plaque and historic dental calculus are related to oral biofilm maturation stage

 

Plaque

Modern calculus

Historic calculus

Source

HMP

This study

This study

N

20

10

43

Periodontal disease*

 Yes

0

6

18

 No

20

4

25

 Caries*

   

 Yes

0

10

8

 No

20

0

35

  1. *On the tooth/teeth sampled. Detailed sample metadata is presented in Additional file 2: Table S1