• F K Spijkervet, H K van Saene, A K Panders, A Vermey, J J van Saene, D M Mehta, and V Fidler.
• Department of Oral and Maxillofacial Surgery, University Hospital Groningen, The Netherlands.
• Oral Surg. Oral Med. Oral Pathol. 1989 Feb 1; 67 (2): 154-61.

AbstractOral flora is thought to contribute to irradiation mucositis in patients with head and neck cancer. Neglect of oral hygienic care may also contribute to mucositis. The purpose of this prospective, randomized, placebo-controlled, double-blind study was to evaluate the effect of chlorhexidine 0.1% mouthrinses on oral flora and irradiation mucositis. This study included 30 patients with head and neck cancer who had comparable irradiation portals. One group (N = 15) rinsed four times daily with chlorhexidine 0.1%, the other group (N = 15) with a placebo. The oral flora was cultured (oral washing technique) twice before and three times per week during the period of radiotherapy. On the same days, the severity of mucositis was determined. The colonization index of viridans streptococci was significantly reduced only after 5 weeks of chlorhexidine 0.1% treatment. The colonization patterns of Candida species, Streptococcus faecalis, staphylococci, and Enterobacteriaceae, Pseudomonadaceae, and Acinetobacter species were not influenced by 5 weeks of use of chlorhexidine rinses when compared with the placebo. No differences were seen between the two study groups in the development and severity of mucositis. In conclusion, suppression of oral flora and a lowering of the severity of mucositis by means of disinfecting mouthrinses were not successful.

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