The Appearance of The Infraorbital Canal and Infraorbital Ethmoid (Haller’s) Cells on Panoramic Radiography of Edentulous Patients

Table 1

Infraorbital canal (IOC) visibility sides and types.

IOC	Right side	Unilateral	Type 1	6(2.1%)
			Type 2	4(1.4%)
			Type 3	18(6.2%)
		Bilateral	Type 1	79(27.1%)
			Type 2	26(8.9%)
			Type 3	98(33.7%)
	Left side	Unilateral	Type 1	2(0.7%)
			Type 2	6(2.1%)
			Type 3	7(2.4%)
		Bilateral	Type 1	79(27.1%)
			Type 2	33(11.3%)
			Type 3	87(29.9%)