. 2015 Jan 19;370(1660):20130376. doi: 10.1098/rstb.2013.0376

Table 1.

Comparative DNA yields between dental calculus and dentine. Normalized DNA yields are reported as nanogram DNA extracted per mg of tissue; DNA measurements determined using a Qubit fluorometer. n.d., not determined; asterisk (*) denotes mean yield of two extractions.

samples	dentine DNA yield (ng mg⁻¹)	dental calculus DNA yield (ng mg⁻¹)
Modern
P2^a	n.d.	83.4
POK1^b	n.d.	346.0
POK2^b	n.d.	313.5
Victorian
FW283T^c	23.1	13.4
Medieval
G12^a	0.5	44.8
B17^a	0.3	437.2
B61^a	0.3	5.0*
B78^a	0.4	29.8
UK1^a	n.d.	226.6*
Anglo-Saxon
NEM093^c	1.3	22.2
Roman Britain
3DT21^c	0.5	15.8
UK2^a	n.d.	84.8

^aData from [39].

^bDNA extractions performed using method A described in [39].

^cDNA extractions performed using method A with silica modification described in [39].