Table 1.

Results obtained according to confocal laser scanning microscopy image browser analysis as mean±standard deviations

RT	Penetration depth (microns)			Percentage of penetration depth (%)			Penetration percentage (%) into dentinal tubules
	Coronal third			Coronal third			Coronal third
	MTA Fillapex	Bioroot RCS	AH 26	MTA Fillapex	Bioroot RCS	AH 26	MTA Fillapex	Bioroot RCS	AH 26
NS	2157.9±246.75A,a,*	2315.30±339.84A,a,*	1735.76±448.20A,b,*	86.22±9.71A,a,*	90.15±9.90A,a,*	69.43±17.93A,b,*	76.73±26.12A,a,b,*	94.85±8.33A,b,*	57.10±27.88A,a,*
S	1880.4±164.42A,a,*	2102.33±337.82A,a,*	1150.47±454.15B,b,*	75.22±6.58A,a,*	83.68±12.89A,a,*	46.02±18.17B,b,*	69.24±25.79A,a,*	78.10±20.29A,a,*	54.41±19.72A,b,*
	Middle third			Middle third			Middle third
NS	1779.24±408.33A,a,^	1964.88±289.66A,a,^	917.62±575.72A,b,^	86.58±17.91A,a,*	93.39±10.18A,a,*	45.88±28.79A,b,^	66.30±20.57A,a*	87.20±12.40A,a,*	36.80±30.21A,b,^
S	1370.52±444.22B,a,^	1872.70±512.66A,b,*	1135.87±277.31A,a*	68.53±22.21B,a,b,*	86.31±18.80A,b,*	56.79±13.87A,a,*	62.94±26.88A,a,b,*	77.50±11.81A,a,*	49.00±14.42A,b,*
	Apical third			Apical third			Apical third
NS	1230.57±579.85A,a#	1363.04±399.99A,a,#	277.17±211.82A,b,#	73.26±27.50A,a,*	83.83±19.12A,a,*	18.48±14.12A,b,#	59.59±14.99A,a,*	82.55±11.23A,b,*	15.55±12.99A,c,#
S	850.75±667.79A,a#	1364.53±519.87A,a,^	977.94±407.19B,a,*	53.69±40.47A,a,*	81.08±25.62A,a,*	63.53±23.96B,a,*	40.97±30.42B,a,^	67.35±13.81A,b,*	45.29±17.23B,a,*

^A,BWithin rows (sealer and third: same; retreatment group: different) means followed by the same uppercase letter are not significantly different from each other (P>0.05), ^a,b,cWithin columns (retreatment group and third: same; sealer: different), means followed by the same lowercase letter are not significantly different from each other (P>0.05), *^{,^,#}Within rows (retreatment group and sealer: same; third: different), means followed by the same sign are not significantly different from each other (P>0.05). S: Solvent group NS: No solvent group, RT: Retreatment techniques