Table 1.

Comparison of mean labial alveolar bone thickness and angulation at initial and final stage

	Initial stage		Final stage
	Mean	SD	Mean	SD	P value
Thickness
B1	1.06	0.409	1.19	0.776	0.358
B2	1.16	0.449	1.40	0.905	0.140
B3	1.56	0.647	1.95	1.094	0.032*
Angulation
θ	1.18	4.710	3.77	6.148	0.058

B1, B2, B3: labial alveolar bone thickness at 3-, 6-, and 9-mm distance from the alveolar crest; θ: measured angle between the line tangent to the margin of the incisor at the alveolar crest level and the line tangent to the outline of the alveolar bone

SD, standard deviation

*P < 0.05, **P < 0.005, ***P < 0.001, statistically significant; paired t test