Table 4 Measurements of palatal inter-radicular cortical bone thickness at 7 mm from the alveolar crest in the upper arch

CBT at 1/2

High angle

.9217

.08612

0.032*

Normal

1.2350 a

.23990

Low angle

1.1157 a

.54851

CBT at 2/3

High angle

.7183

.56201

0.045*

Normal

1.213 a

.10838

Low angle

1.1614 a

.56304

CBT at 3/4

High angle

1.25

.399

0.435

Normal

1.35

.118

Low angle

1.30

.188

CBT at 4/5

High angle

.8633

.49017

0.125

Normal

1.2333

.21379

Low angle

1.2286

.16067

CBT at 5/6

High angle

.8750

.48587

0.41

Normal

1.1517

.25733

Low angle

1.1429

.15239

CBT at 6/7

High angle

1.10

.180

0.836

Normal

.98

.129

Low angle

1.06

.229