Table 5: χ square test results even with Yates correction show differences statistically significant about the distribution of ponticulus posticus in the patients with and without dental agenesis.

Chi-Square Test					69,64	Significative difference (prob. 1%)
-	-	-	-	p:	0,0000	-	-	-	-
Chi – Square Test (with Yates correction):					66,20	Significative difference (prob. 1%)
-	-	-	-	p:	0,0000	-	-	-	-