[Retracted] EDTA Combined with C-Pilot Files and Microultrasound for Root Canal Calcification: Dredging Effect and Safety Analysis

Table 2

Comparison of dredging effect of root canal calcification in different tooth positions.

	Anterior teeth	Premolars	Molars	Overall success rate
Control group	61.54 (8/13)	71.43 (30/42)	73.91 (51/69)	71.77%
Research group	93.75 (15/16)	89.47 (34/38)	88.16 (67/76)	89.23%
	4.535	4.060	4.843	12.420
	0.033	0.044	0.028	<0.001