Effect of an Intraorifice Barrier on Endodontically Treated Teeth: A Systematic Review and Meta-Analysis of In Vitro Studies

Table 3

Demographic data of the included studies.

Study	Year	Country	Methodology	Sample size (per group)	Tooth group
Roghanizad	1996	United States	2% methylene blue dye penetration	94 (28)	Maxillary incisors
Yavari	2012	Iran	2% methylene blue dye penetration	188 (56)	Single-rooted premolars
Malik	2013	India	2% methylene blue dye penetration	70 (30)	Single-rooted premolars
Lee	2015	South Korea	1% methylene blue dye penetration	70 (10)	Single-rooted premolars
Alikhani	2020	Iran	2% methylene blue dye penetration	45 (15)	Single-rooted teeth
Shindo	2004	Japan	2% methylene blue dye penetration	100 (15)	Single-rooted teeth
Parekh	2014	India	Rhodamine-B dye penetration	40 (10)	Single-rooted premolars
Bhullar	2019	India	Rhodamine-B dye penetration	50 (10)	Single-rooted teeth
Pisano	1998	United States	Human saliva penetration	74 (20)	Single-rooted teeth
Zakizadeh	2008	United States	Human saliva penetration and micro-CT evaluation	50 (10)	Single-rooted teeth
Yavari	2012	Iran	Human saliva penetration	70 (15)	Single-rooted premolars
Tselnik	2004	United States	Human saliva penetration	78 (18)	Single-rooted teeth
Wolcott	1999	United States	Proteus vulgaris penetration	110 (25)	Single-rooted teeth
Barrieshi-Nusair	2005	Kuwait	Pelikan ink penetration	70 (30)	Single-rooted teeth
Jenkins	2006	United States	India ink penetration	130 (40)	Single-rooted teeth
Sauáia	2006	Brazil	India ink penetration	80 (20)	Maxillary and mandibular molars
Divya	2014	India	India ink penetration	70 (15)	Single-rooted premolars
Ramezanali	2017	Iran	India ink penetration	76 (22)	Single-rooted premolars
Galvan	2002	United States	Fluid filtration model	52 (10)	Mandibular molars
Wells	2002	United States	Fluid filtration model	62 (15)	Maxillary and mandibular molars
Maloney	2005	United States	Fluid filtration model	30 (10)	Single-rooted premolars
Jack	2008	United States	Fluid filtration model	34 (15)	Single-rooted teeth
John	2008	United States	Fluid filtration model	40 (10)	Single-rooted teeth
Bayram	2013	Turkey	Fluid filtration model	50 (10)	Maxillary incisors
Mohammadi	2006	Iran	Enterococcus faecalis penetration	51 (15)	Single-rooted teeth
Fathi	2007	United States	Enterococcus faecalis penetration	55 (15)	Single-rooted teeth
Valadares	2011	Brazil	Enterococcus faecalis penetration	70 (20)	Single-rooted teeth
Rashmi	2018	India	Enterococcus faecalis penetration	100 (20)	Single-rooted teeth
Celik	2006	Turkey	Staphylococcus epidermitis penetration	60 (10)	Single-rooted premolars
Bailón-Sanchéz	2011	Spain	Glucose penetration	42 (10)	Single-rooted teeth