Table 2.

Flexural strengths (MPa) and tensile strengths (MPa) of the PUL, PUC, PUZ, and PET groups (n = 5).

	Group	Mean	S.D.	Median	Min–max
Flexural strengths	PUL	70.50a	4.05	68.27	67.72–77.27
	PUC	64.38ab	2.94	64.84	59.64–67.12
	PUZ	69.09a	4.31	68.54	64.61–75.21
	PET	59.57b	3.93	57.47	56.21–64.32
Significance		**
Tensile strengths	PUL	45.67a	2.78	68.27	40.78–47.30
	PUC	44.97a	0.89	64.84	43.95–46.22
	PUZ	41.90ab	2.72	68.54	37.59–44.30
	PET	34.28bc	0.88	57.47	33.39–35.74
Significance		**

Superscript letters (a, b, c) indicate results of post hoc comparisons; groups sharing the same letter are not significantly different (p > 0.05). **p < 0.01.