Progress in Orthodontics

Table 5 Stability of the mini-implants, according to the sex, age, and installation site

From: Maxillary protraction with rapid maxillary expansion and facemask versus skeletal anchorage with mini-implants in class III patients: a non-randomized clinical trial

Variable	Stable	Loss	*P value
Variable	n (%)	n (%)	*P value
Sex
Male	15 (88.2%)	2 (11.8%)	0.694
Female	25 (80.6%)	6 (19.4%)	0.694
Age
9–10 years	23 (95.8%)	1 (4.2%)	0.048
11–12 years	17 (70.8%)	7 (29.2%)	0.048
Site
Maxilla	19 (79.2%)	5 (20.8%)	0.701
Mandible	21 (87.5%)	3 (12.5%)	0.701

*Fisher’s exact test

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