From: Prioritization of predisposing factors of gingival hyperplasia during orthodontic treatment: the role of amount of biofilm
OR adjusted
95% confidence intervals
Duration of treatment
0: less than 1 year
2.03 [1.01–4.08]*
1: 1–2 years
2: more than 2 years
Type of bracket
0: ceramic
3.5 [1.1–10.55]*
1: metal