Study N Gender Mean age
(years) 		Race Location
Krier 1980 1 Male 37 Caucasian Mandible
Cohen et al. 1984 24 Male: 12
Female: 12		 54 Caucasian: 13
Nigerian: 11		 Mandible: 18
Maxilla: 6
Rasmusson et al. 1991 32 Male: 21
Female: 11		 55 Not reported Mandible: 28
Maxilla: 4
Buchner et al. 1996 1 Male 38 Nigerian Mandible
Carter et al. 1996 25 Male: 13
Female: 12		 46 Caucasian: 13
Nigerian : 8
Not reported: 4		 Mandible: 21
Maxilla: 4
Tolson et al. 1996 1 Male 50 Nigerian Mandible
Meltzer JA 1999 1 Female 73 Caucasian Mandible
Kerezoudis et al. 2000 2 Male: 2 58 Caucasian Mandible: 1
Maxilla: 1
Mendes et al. 2006 2 Male: 1
Not reported: 1		 59 Not reported Mandible: 2
Ortega et al. 2007 1 Male 31 Not reported Maxilla
Nart et al. 2007 1 Female 74 Caucasian Mandible
Formoso Senande et al. 2008 11 Male: 6
Female: 5		 37 Not reported Mandible: 3
Maxilla: 8
Nikitakis et al. 2010 2 Male: 1
Female: 1		 61 Caucasian Mandible: 1
Maxilla: 1