Table 2.

Internal gap results.

	Area	Group	Mean	SD	Min-max	P value
Internal gap (µm, n = 14)	Pulpal	Zr	99.75	±17.99	81.01–145.83	0.047
		ZLS	82.65	±24.79	58.98–149.38
	Axiopulpal	Zr	113.81	±17.18	87.63–148.72	0.002
		ZLS	85.62	±25.27	54.13–130.88
	Axial	Zr	78.13	±14.67	56.71–100.21	0.125
		ZLS	69.09	±15.52	47.24–98.56
	Axiomarginal	Zr	56.42	±14.00	40.51–81.01	0.580
		ZLS	53.35	±14.95	34.37–86.12
	Overall internal gap	Zr	87.03	±14.39	66.46–117.36	0.028
		ZLS	72.68	±18.05	51.22–112.66

Zr, zirconia; ZLS, zirconium lithium silicate; SD, standard deviation; Min, minimum; Max, maximum.