[Table/Fig-3]:

Data regarding intial enlargement, coronal preparation and usage frequency of reciprocating and self adjusting file system.

			Frequency	Percent
Do you initially enlarge the canal before rotary instrumentation with K file		15 no. K file	172	27.0
		20 no. K file	359	56.3
		25 no. K file	46	7.2
		Depends on the canal	61	9.6
		Total	638	100.0
			Frequency	Percent
Do you use coronal enlarging file	Gates Glidden or large number K file		41	6.4
	GG drills		1	0.2
	No		123	19.3
	Orifice opener		1	0.2
	Orifice openers or Sx file		1	0.2
	Protaper Sx		1	0.2
	Sometimes when orifices are apart		1	0.2
	Sx		1	0.2
	Yes		468	73.4
	Total		638	100.0
		Frequency	Percent
Have you used reciprocating file system	No	544	85.3
	Yes	94	14.7
	Total	638	100.0
		Frequency	Percent
Have you used self adjusting file system	No	579	90.8
	Yes	59	9.2
	Total	638	100.0