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Table 10 Sunderland grades

From: Comparison of prognosis in two methods for the lingual nerve repair: direct suture with vein graft cuff and collagen allograft method

 

Group A (direct suturing)

Group B (collgen graft)

Preoperation

6 months

12 months

Preoperation

6 months

12 months

Grade V

4

0

0

4

0

0

Grade VI

6

0

0

6

0

0

Grade III

0

3

1

0

7

2

Grade II

0

6

8

0

3

7

Grade I

0

1

1

0

0

1

  1. P values were calculated using Fisher’s exact test
  2. Between groups A and B at preoperation and 6 and 12 months after the operation, there was always no significant difference