Comparison of piezocision and discision methods in orthodontic treatment

Progress in Orthodontics

Table 3 Comparison of mandibular periodontal parameters in experimental groups according to different treatment periods

Variables	T0	P	T1	P
PPD
Discision + orthodontic treatment	1.93 (0.08)	.294*	2.03 (0.20)	.355**
Piezocision + orthodontic treatment	2.00 (0.18)	.294*	2.13 (0.19)	.355**
BOP
Discision + orthodontic treatment	6.84 (5.74)	.972**	5.28 (4.69)	.930*
Piezocision + orthodontic treatment	6.82 (5.69)	.972**	5.09 (5.09)	.930*
Plaque index
Discision + orthodontic treatment	0.73 (0.39)	.487*	0.56 (0.26)	.886*
Piezocision + orthodontic treatment	0.61 (0.33)	.487*	0.54 (0.32)	.886*
Gingival index
Discision + orthodontic treatment	0.45 (0.41)	.255**	0.36 (0.23)	.859**
Piezocision + orthodontic treatment	0.53 (0.33)	.255**	0.46 (0.42)	.859**

PPD probing pocket depth, BOP bleeding on probing, T0 before orthodontic treatment, T1 1 month after discision/piezocision procedure. *Results of independent t test, **results of Mann-Whitney U test