Table 1: Radiographic results at 6 and 12 months

				6 months						12 months
Parameters		+		–		N/A		+		–		N/A
Periodontal ligament space widening		0		35 (100%)		–				21 (60%)		14 (40%)		p > 0.05
Status of bone lesion		0		35 (100%)		-		0		35 (100%)		–		p > 0.05
Radicular pulp lumen thinning		8 (22.9%)		27 (77.1%)		–		9 (25.7%)		12 (34.3%)		14 (40%)		p > 0.05
Pathologic root resorption		0		35 (100%)		–		0		35 (100%)		–		p > 0.05
Normal development of successor		35 (100%)		–		–		21*(60%)14** (40%)						p > 0.05

*presence of successor; **eruption of successor

+ Positive; - negative; N/A not applicable.

Note: N/A define the cases that could not be evaluated due to some physiologic factors such as eruption of successor or physiologic root resorption.