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Table 2 Results of angular measurements

From: The effect of botulinum toxin-A injection into the masseter muscles on prevention of plate fracture and post-operative relapse in patients receiving orthognathic surgery

  No treatment BTX-A injection P value
SNB angle Pre-operation 82.36 ± 5.29° 86.25 ± 5.30° NS
Immediately after operation 77.89 ± 4.90° 82.18 ± 3.79° NS
Post-operative change 1.15 ± 1.18° 0.24 ± 1.95° NS
Mandibular plane angle Pre-operation 34.03 ± 6.78° 32.01 ± 6.35° NS
Immediately after operation 32.97 ± 5.73° 31.99 ± 4.89° NS
Post-operative change 3.46 ± 3.89° 3.17 ± 3.37° NS
Gonial angle Pre-operation 125.06 ± 6.33° 130.93 ± 6.09° NS
Immediately after operation 122.83 ± 9.91° 126.12 ± 8.17° NS
Post-operative change 3.68 ± 4.08° 4.66 ± 3.07° NS
  1. NS not significant