Table 2.

Distribution of displaced and non-displaced maxillary canine subjects according to presence and location of maxillary septa and anterior extension of maxillary sinus, chi-square coefficients (R), degree of freedom (df), Cramer’s V and p values

		BDCs subjects	PDCs subjects	Chi-Square R (df)	Cramer’s V	p value
Non-displaced displaced side
Location of septa	No septa	46 (92%)	78 (94%)	6.26 (2)	0.023	0.044*
	Anterior	4 (8%)	1 (1%)
	Posterior	0 (0%)	4 (5%)
Anterior pneumatization	Central incisor	0 (0%)	3 (4%)	9.66 (5)	0.270	0.085NS
	Lateral Incisor	5 (10%)	2 (2%)
	Canine	17 (34%)	30 (36%)
	First premolar	25 (50%)	34 (41%)
	Second premolar	3 (6%)	9 (11%)
	First molar	0 (0%)	5 (6%)
Displaced side
Location of septa	No septa	47 (94%)	74 (89%)	5.37 (2)	0.201	0.068NS
	Anterior	0 (0%)	7 (8.5%)
	Posterior	3 (6%)	2 (2.5%)
Anterior pneumatization	Lateral Incisor	5 (10%)	11 (13%)	12.16 (4)	0.302	0.016*
	Canine	24 (48%)	19 (23%)
	First premolar	14 (28%)	40 (48%)
	Second premolar	7 (14%)	9 (11%)
	First molar	0 (0%)	4 (5%)

NS not significant

*Significant at p < 0.05