Table 2.

Treatment-related bone loss and apical root resorption

Measurement	Impacted canines			Contralateral canines			P value
	Mean (mm)	SD	Range	Mean (mm)	SD	Range
BL
Labial	2.88	0.73	1.2–4.7	2.69	0.66	1.1–4.2	0.353
Palatal	0.97	0.43	0.3–1.9	0.75	0.36	0.1–1.6	0.055
RL
Pretreatment	23.85	1.07	21.5–26.4	23.81	1.03	21.7–26.4	0.902
Posttreatment	22.29	1.12	20.1–24.5	22.34	1.16	20.3–25.3	0.89
ARR	1.56	0.69	0.4–3.0	1.48	0.57	0.5–2.7	0.648

BL bone loss, RL root length, ARR apical root resorption