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Table 2 Comparison of anthropometric measurements of the maxillofacial bone

From: Effect of the masseter muscle injection of botulinum toxin A on the mandibular bone growth of developmental rats

Variables

Control

Experimental

P value

Mean ± SD

Mean ± SD

Vertical measurement (mm)

 Ramus height I

5.39 ± 0.21

5.10 ± 0.12

0.025*

 Ramus height II

4.10 ± 0.16

3.91 ± 0.15

NS

 Ramus height III

4.51 ± 1.58

3.72 ± 0.17

0.002*

 Corpus height

2.67 ± 0.72

2.43 ± 0.28

NS

 Mandibular molar height

3.97 ± 0.06

3.92 ± 0.12

NS

Sagittal measurement

 Mandibular plane angle I (°)

112.18 ± 2.65

113.47 ± 2.86

NS

 Mandibular plane angle II (°)

157.13 ± 5.84

163.78 ± 6.07

0.008*

 Total mandibular length (mm)

11.74 ± 0.19

11.58 ± 0.35

NS

 Corpus length (mm)

10.43 ± 0.24

10.39 ± 0.21

NS

Transverse measurement (mm)

 Zygomatic arch width

12.31 ± 0.30

11.97 ± 0.33

NS

 Maxillary molar width

3.98 ± 0.26

4.04 ± 0.18

NS

 Mandibular molar width

4.39 ± 0.12

4.35 ± 0.25

NS

 Bicondylior mandibular width

10.47 ± 0.21

10.27 ± 0.22

NS

 Bigonial mandibular width

9.94 ± 0.21

9.26 ± 0.15

< 0.001*

 Dental midline discrepancy

(lower incisor midline right: +, left: −)

− 0.032 ± 0.090

0.035 ± 0.118

NS

  1. NS not significant
  2. *P < 0.05