Incisal edge

Cusp

Control

Model A

Model B

Model C

Model D

Control

Model A

Model B

Model C

Model D

Model A

Model A

Model B

n.s.

Model B

n.s.

Model C

n.s.

n.s.

Model C

n.s.

n.s.

Model D

n.s.

n.s.

n.s.

Model D

n.s.

n.s.

n.s.

MP

Model A

Model B

Model C

Model D

MP

Model A

Model B

Model C

Model D

Model A

Model A

Model B

n.s.

Model B

n.s.

Model C

n.s.

n.s.

Model C

n.s.

n.s.

Model D

n.s.

n.s.

n.s.

Model D

n.s.

n.s.

n.s.

n.s.: not significant.

n.s.: not significant.

Labial surface

Buccal surface

Control

Model A

Model B

Model C

Model D

Control

Model A

Model B

Model C

Model D

Model A

Model A

Model B

n.s.

Model B

n.s.

Model C

n.s.

n.s.

Model C

n.s.

n.s.

Model D

n.s.

n.s.

n.s.

Model D

n.s.

n.s.

n.s.

MP

Model A

Model B

Model C

Model D

MP

Model A

Model B

Model C

Model D

Model A

Model A

Model B

n.s.

Model B

n.s.

Model C

**

**

Model C

**

**

Model D

**

**

n.s.

Model D

**

**

n.s.

**P < 0.01; n.s.: not significant.

**P < 0.01; n.s.: not significant.

Anterior palate

Molar palate

Control

Model A

Model B

Model C

Model D

Control

Model A

Model B

Model C

Model D

Model A

Model A

Model B

n.s.

Model B

n.s.

Model C

**

**

Model C

n.s.

**

Model D

n.s.

n.s.

**

Model D

**

n.s.

**

MP

Model A

Model B

Model C

Model D

MP

Model A

Model B

Model C

Model D

Model A

Model A

Model B

n.s.

Model B

n.s.

Model C

n.s.

**

Model C

n.s.

n.s.

Model D

**

n.s.

**

Model D

**

n.s.

n.s.

**P < 0.01; n.s.: not significant.

**P < 0.01; n.s.: not significant.