Table 2. IGT and IBT according to variables.

Variables		IGT	IBT
Overall		0.77±0.29	0.77±0.32
Sex
	Male	0.75±0.29	0.82±0.31
	Female	0.77±0.30	0.76±0.32
Jaw of the tooth
	Maxilla	0.86±0.31	0.96±0.28
	Mandible	0.67±0.24	0.59±0.23
Position of the tooth
	Central incisor	0.75±0.28	0.81±0.33
	Lateral incisor	0.78±0.31	0.74±0.30
Orthognathic surgery history
	Maxilla	0.74±0.29	0.77±0.32
	Mandible	0.73±0.28	0.76±0.31
Inclination of the tooth
	Proclination	0.74±0.26	0.72±0.32
	Retroclination	0.78±0.31	0.81±0.31

Proclination means forward (i.e., labial) tilting, and retroclination means backward (i.e., palatal or lingual) tilting. Data are distance (mm) values which expressed as mean±standard deviation except where indicated otherwise.

IGT: initial labial gingival thickness, IBT: initial labial alveolar bone thickness, SD: standard deviation.