Occlusal height difference between maxillary central and lateral incisors: should aesthetic perception influence bracket placement?

Table 2 Calculated OHD based on results from measurements on photographs

Group	mean	sd	min	max	P-Value
1 (dental advertisements)	1.39	0.30	0.69	1.75	> 0.05 ^n.s.
2 (fashion advertisements)	1.34	0.35	0.81	2.10	> 0.05 ^n.s.
3 (orthodontic advertisements)	1.23	0.41	0.00	1.84	> 0.05 ^n.s.
4 (orthodontic textbooks)	0.62	0.18	0.33	0.98	< 0.001*

n.s., statistically not significant; *, P < 0.001; OHD, Occlusal height difference

ISSN: 1746-160X