177 Redundant tooth loss prior to head and neck radiotherapy 5 1.5 1.6 1.2 1.2 1.3 1.2 3.3 3.7 1.3 4.3 12.4 70.9 69.7 69.0 65.7 67.5 48.7 9.1 70.4 67.5 21.9 24.0 22.6 18.4 16.8 14.4 14.8 13.1 6.5 21.2 18.2 12.0 17.2 (25.6) (24.0) (24.0) (23.1) (23.7) (16.5) (3.0) (26.1) (20.4) (7.2) (5.6) 75% 78% 86% 86% 86% 86% 100% 71% 82% 100% 100% 6 7 6 6 6 6 4 5 9 7 4 8 9 7 7 7 7 4 7 11 7 4 Csi I2si I1si I1sc I2sc Csc Pm1sc Pm2sc M1sc M2sc M3sc Cii I2ii I1ii I1ic I2ic Cic Pm1ic Pm2ic M1ic M2ic M3ic 17 17 18 17 16 15 17 15 13 16 12 1 2 2 1 1 1 1 5 6 9 4 6% 12% 11% 6% 6% 7% 6% 33% 46% 56% 33% 62.5 60.2 59.0 57.8 57.8 57.0 54.6 47.1 44.7 37.7 42.7 (15.5) (17.1) (16.3) (16.1) (15.8) (15.6) (14.8) (16.9) (15.6) (16.8) (20.3) 7.4 7.5 8.6 8.0 9.2 10.1 10.9 11.7 22.2 6.4 7.7 76.0 75.1 74.3 74.4 72.6 72.1 71.4 72.6 68.5 61.8 62.2
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