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Table 2 Orthodontic characteristics of studied population

From: Prioritization of predisposing factors of gingival hyperplasia during orthodontic treatment: the role of amount of biofilm

  Characteristics %
Exclusive mouth breather
No 153 79.3
Yes 40 20.7
Oral Hygiène (OHI) Plaque index
IP = 0: No plaque 24 12.4
IP = 1 Plaque visible after scratching at the probe 67 34.7
IP = 2 Plaque visible with naked eye 84 43.5
IP = 3 Abondance of plaque 18.0 9.3
Frequency of brushing
At least twice a day 176 91.2
Once a day or less 17 8.8
Gingival phenotype
Thick 59 30.6
Thin 134 69.4
Type of orthodontic brackets
Metal 170 88.1
Ceramic 6 3.1
Maxillary ceramic and metal in the mandible 17 8.8
Orthodontic arch type
Containing nickel 60 31.1
Steel 133 68.9
Ligatures
Metal 7 3.6
Elastomerics 109 56.5
Both 72 37.3
Self-ligating 5 2.6