Osteoradionecrosis occurs at a dose of:: (A) > 10 Gy, (B) > 70 Gy, (C) > 30 Gy, (D) None of the above.
Answer is B. Life-Long threat:
Hyposalivation

Radiation caries

Occurs 3 months after expose (PG1)

Trismus
Osteoradionecrosis > 70 Gy