Table 4 Dosimetric parameters (Mean ± Std. Error of Mean) stratified to the toxicity grading

Oral Cavity

V_30Gy [%]^*

73.3 ± 4.4

73.4 ± 2.8

83.2 ± 1.7

84.3 ± 6.9

V_40Gy [%]^*

53.6 ± 5.2

53.0 ± 3.5

62.3 ± 2.5

70.5 ± 7.8

V_70Gy [%]^*

6.9 ± 2.8

8.8 ± 1.6

14.9 ± 2.1

17.4 ± 6.6

Mean [Gy]

42.5 ± 2.7

43.9 ± 1.4

47.7 ± 1.1

49.6 ± 4.4

SALIVARY TOXICITY

G0

G1

G2

G3

Parotid Ipsilateral

Mean [Gy]

30.0 ± 1.2

27.0 ± 1.1

34.9 ± 7.5

Parotid Contralateral

Mean [Gy]

22.4 ± 0.7

22.9 ± 0.6

23.8 ± 0.3

Parotids

Mean [Gy]

25.9 ± 0.7

25.1 ± 0.7

29.4 ± 3.7

Submandibulary Right

Mean [Gy]

61.0 ± 1.3

60.8 ± 1.5

60.5 ± 3.4

Submandibulary Left

Mean [Gy]

60.9 ± 1.3

62.2 ± 1.2

60.8 ± 3.7

SWALLOWING TOXICITY

G0

G1

G2

G3

Inferior Constrictor

D_1/3V [Gy]^*

45.9 ± 2.1

55.3 ± 2.6

54.5 ± 2.3

58.8 ± 6.1

D_1/2V [Gy]^*

43.0 ± 2.1

53.6 ± 2.8

52.0 ± 2.4

56.9 ± 6.4

D_2/3V [Gy]^*

40.1 ± 2.1

51.4 ± 2.8

49.2 ± 2.5

55.5 ± 6.7

V_30Gy [%]^*

84.0 ± 3.9

98.9 ± 0.6

98.0 ± 1.1

100.0 ± 0.1

V_40Gy [%]^*

55.6 ± 5.4

84.4 ± 6.1

78.2 ± 5.3

84.4 ± 13.9

V_50Gy [%]^*

28.4 ± 5.0

54.8 ± 9.0

52.0 ± 8.1

62.3 ± 18.5

Mean [Gy]^*

43.4 ± 2.0

53.5 ± 2.6

51.9 ± 2.3

57.5 ± 6.1

Middle Constrictor

Mean [Gy]

56.8 ± 1.8

59.9 ± 1.9

62.5 ± 1.5

63.1 ± 3.9

Superior Constrictor

Mean [Gy]

62.4 ± 1.5

62.7 ± 1.5

63.6 ± 1.6

60.6 ± 3.1