Table 4.

Comparison of differences in CEJ measurements of buccal sites using open and close methods (percentage)

Diff. in measurements	Mesio buccal site	Percentage reduction		Disto buccal sites	Percentage reduction		Mid buccal	Percentage reduction
−4.0	0	0	23.92	0	0	33.33	0	0	32.60
−3.5	1	2.17		0	0		0	0
−3.0	1	2.17		1	2.38		0	0
−2.5	0	0		0	0		2	4.35
−2.0	3	6.52		2	4.76		3	6.52
−1.5	1	2.17		1	2.38		2	4.35
−1.0	4	8.69		7	16.66		4	8.69
−0.5	1	2.17		3	7.14		4	8.69
0	8	17.39	17.39	9	21.42	21.42	12	26.08	26.08
0.5	20	43.47	58.69	14	33.33	45.23	14	30.43	41.30
1	6	13.04		3	7.14		4	8.69
1.5	1	2.17		1	2.38		0	0
2	0	0		1	2.38		1	2.17
2.5	0	0		0	0		0	0
3	0	0		0	0		0	0
3.5	0	0		0	0		0	0