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Table 2 Constraint of head and neck organs at risk

From: Treatment improvement and better patient care: which is the most important one in oral cavity cancer?

OAR Theorical constraint
Spinal cord D max <45 Gy (0.5 cc =48 Gy)
TMJ  
Homolateral D5% ≤70 Gy
Controlateral D5% ≤70 Gy
Mandible < 65 Gy
Tooth < 60 Gy
Parotid gland  
Homolateral -
Controlateral D mean ≤26 Gy; D50% ≤30 Gy
Submandibular gland  
Homolateral -
Controlateral D mean ≤26 Gy; D50% ≤30 Gy
  1. OAR = organ at risk; TMJ = temporomandibular joint; D = dose.