The Discolouration of Human Teeth from Archaeological Contexts: Elemental Analysis of a Black Tooth from a Roman Cranium Recovered from the River Witham, Lincoln, UK

Table 1

Metal concentrations of a set of modern teeth and the ancient tooth in g/g.

	Mn	Fe	Zn	Pb
g metal/g modern tooth (determined by AAS)
Min	0.88	20.20	129.02	0.97
Mean	1.90	40.81	174.32	2.46
Max	4.29	86.17	263.94	9.11
StDev	0.67	19.52	34.03	2.09
g metal/g ancient tooth (determined by ICP-AES)
Mean	275.24	1539.72	62.60	2.40
StDev	1.09	0.66	0.79	2.34