Introduction
tumor, tumors, Head and neck cancers
TUMOR, TUMORS, CAVITY, HEAD AND NECK CANCER
Head and neck cancers are a group of tumors that affect the oral cavity, lips, nasal
cavity, pharynx, larynx, and salivary glands RDT uses electromagnetic waves to destroy tumor cells through the breakage of DNA
molecules, preventing duplication Previous reports have shown that RDT affects the tooth structure by reducing
microhardness Several studies have evaluated the organic and inorganic structural compositions of
coronary dentin; however, few studies have analyzed the effect of RDT on
intra-radicular dentin. Therefore, this study aimed to evaluate, in vitro, the
obliteration of dentinal tubules, the inorganic composition of intra-radicular
dentin, and the integrity of collagen fibers in root dentin before and after RDT.
The null hypothesis of this study was that RDT would be unable to cause a
deleterious effect on the structure of the root dentin.