Table 1. Differences due to grafting direction and location.

Grafting direction	No. of recipient sites	Residual rate (%)	Results in Scheffe's test	P-value
Direction
Horizontal	63	78.4±6.9	a
Vertical	30	71.0±5.6	b
Horizontal+vertical	35	71.0±10.0	b
Site
Maxilla	69	75.6±7.1		0.154
Mandible	59	73.4±9.6
Anterior	27	79.5±6.7		0.001
Posterior	101	73.3±7.1

The difference between 'a' and 'b' was statistically significant in Scheffe's test.

Statistical significance level, P<0.05