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Table 3 The classification of the transition for dehiscence and fenestration after treatment

From: Changes of alveolar bone dehiscence and fenestration after augmented corticotomy-assisted orthodontic treatment: a CBCT evaluation

Transition degree Definition
d0 ≤ 2 mm 1 d1 ≤ 2 mm (maintain)
2 d1>2 mm (worsen)
d0>2 mm 1 d1 ≤ 2 mm (cure)
2 2<d1<d0 (improve)
3 d1 = d0 (maintain)
4 d1>d0 (worsen)
f0 ≤ 2.2 mm 1 f1 ≤ 2.2 mm (maintain)
2 f1>2.2 mm (worsen)
f0>2.2 mm 1 f1 ≤ 2.2 mm (cure)
2 2.2<f1<f0 (improve)
3 f1 = f0 (maintain)
4 f1>f0 (worsen)