Root resorption of self-ligating and conventional preadjusted brackets in severe anterior crowding Class I patients: a longitudinal retrospective study

Table 2 Comparison of the Degree of Root Resorption (mm) Between before and after treatment for the Patients in Group I (Self-ligating Brackets)

Measurements, mm	T1		T2		T2-T1	95 % CIs		P
Measurements, mm	Mean	SD	Mean	SD	T2-T1	lower	upper	P
Maxillary central incisor root	11.5	1.3	11.2	1.2	−0.3	0.17	0.43	*
Maxillary lateral incisor root	10.1	0.9	9.8	1.1	−0.2	0.04	0.56	*
Mandibular central incisor root	10.7	1.4	10.3	1.2	−0.4	0.14	0.66	*
Mandibular lateral incisor root	11.5	1.6	11.2	1.5	−0.3	0.17	0.43	*

ISSN: 1472-6831