Clinical
radiotherapy is one of the most important techniques for the treatment of
malignant lesions in head and neck; however, exposure to ionizing radiation may
lead to both systemic and local complications, immediately and after this
treatment, where the main issue is the xerostomia and its consequent oral
mucositis.
Regarding
late complications produced by radiation, decay of radiation and
osteoradionecrosis, both dosedependent lesions, showed a high level of
incidence in recent decades and it would be difficult to manage, although
patients referred after treatment’s completion and under the influence of local
factors.
Then, this study
evaluated the effect of ionizing radiation from gamma source onto samples of
enamel, root dentin and jawbone samples undergone to the same absorbed
dose/dose rate that those in patients with head and neck cancer.
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