“…In addition to C. albicans, the other microbial species found most commonly by percentage contribution during radiotherapy were F. nucleatum subspecies nucleatum, V. parvula and S. epidermidis. Other studies have reported changes in microbial oral flora in patients with oral carcinomas (Martin and van Saene, 1992;Nagy et al, 1998;Anjali et al, 2020) and during radiation treatment (Llory et al, 1972;Brown et al, 1975;Keene et al, 1981;Keene and Fleming, 1987;Epstein et al, 1991;Abu Shara et al, 1993;Leung et al, 2001;Vissink et al, 2003b;Dahlen et al, 2009;Anjali et al, 2020;Zagury-Orly et al, 2021). These changes have also included an increase in Fusobacterium and Veillonella (Nagy et al, 1998;McIlvanna et al, 2021;Minarovits et al, 2021), as was found in this study.…”