Table 5. Articles published since 1989 regarding culture of H. pylori in oral cavity.

Author	Country	N0	Dental plaque	Saliva	Teeth
Krajden et al.80	Canada	71	1	0
Oshowo et al.51	UK	180	2	0
Cheng et al.30	UK	122	0	0	1
Luman et al.82	UK	109	0	0	0
Allaker et al.83	UK	100	0	0	0
Bernander et al.84	Sweden	114	0	0	0
Pustorino et al.85	Italy	83	5	0	0
Khandaker et al.86	UK	81	12	0	0
Ishihara et al.87	Japan	82	0	0	0
Hardo et al.19	UK	62	0		0
Majmudar et al.88	India	40	40
Cellini et al.89	Italy	31	1
Wahlfors et al.90	Finland	29	0	0
Paronnet et al.42	USA	26		3
Namavar et al.91	Holland	20	1
D'Alessandro and Seri92	Italy	20	16
Ferguson et al.93	USA	16		1
Bickley et al.94	UK	15		0
Zhent et al.30	China	72		31
Chen et al.30	China	173		69
Zheng et al.96	China	163		42
Jiang et al.97	China	50		13
Xu et al.98	China	98		21
Agarwal et al.99	India	30	9
Czesnikiewicz-Guzik et al.100	Poland	100	45	55
Czesnikiewicz-Guzik et al.101	Poland	100	46	54
Loster et al.102	Poland	46		22	20
Sudhakar et al.103	India	50	10
Teoman al.104	Turkey	67	17
Umeda et al.105	Japan	57	18
Goosen et al.106	South Africa	58	2
Majmudar et al.88	India	40	40
D'Alessandro et al.92	Dell’ Aquila	20	16
Namavar et al.91	Netherlands	20		3
Me'graud et al.122
Wang et al.1	China	159		94