This fact is from Radiation Complications in Oral Medicine & Radiology. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.
Mucositis = first complication appears first week
Xerostomia = most common late complication = salivary gland damage
Osteoradionecrosis = mandible more than maxilla = avascular necrosis
Trismus = late complication fibrosis
Wait 6 months minimum post-radiation for extractions
HBO = hyperbaric oxygen adjunct for ORN treatment