Casein phosphopeptide-amorphous calcium phosphate nanocom-plexes as a preventive agent for radiation caries and dental sensi-tivity in irradiated head and neck cancer patients / 中国肿瘤临床

Objective: To compare the efficacy of casein phosphopeptide-amorphous calcium phosphate nanocomplexes (CPP-ACP) and Duraphat varnish on preventing radiation caries and dentin hypersensitivity (DH) in irradiated head and neck cancer pa-tients. Methods:A total of 112 patients with head and neck cancer who will undergo radiotherapy were selected and randomly divided into the CPP-ACP group (experimental group) and the Duraphat varnish group (control group). A day prior to the scheduled radiothera-py, CPP-ACP containing paste had been applied once a day for 5 weeks to the teeth surface of the experimental group. Duraphat varnish was applied with the same frequency in the control group. The decay missing filling tooth (DMFT), decay missing filling surface (DMFS), and DH of two groups before radiotherapy and 12 months after radiotherapy were observed and statistically analyzed. Re-sults:Before radiotherapy, DMFT, DMFS, and DH showed no significant differences between the groups (P>0.05). However, signifi-cant increase in DMFT, DMFS, and DH was noted in the two groups 12 months after the radiotherapy (P<0.05). A higher increase was observed in the DMFT, DMFS, and DH of the control group compared with those in the experimental group (P<0.05). Conclusion:CPP-ACP effectively reduced radiation caries and sensitivity in irradiated head and neck cancer patients and deservesclinical applica-tion.

Radiation Caries in Irradiated Patient of Nasopharyngeal Carcinoma – A Case Report:

Radiotherapy (RT) plays an important role in the management of head and neck cancer, especially oropharyngeal and nasopharyngeal cancer. It is also associated with several undesired side effects such as radiation caries which is a common, yet serious, complication. We are presenting a case of radiation caries in 55 year old male patient who had undergone radiotherapy for nasopharygeal carcinoma.

Prevention of radiation caries for the patients with nasopharyngeal carcinoma receiving radiotherapy / 实用口腔医学杂志

Objective:To study the prevention methods of radiation caries for the patients with nasopharyngeal carcinoma receiving radiotherapy. Methods:Seventy-five patients with nasopharyngeal carcinoma received dental check and treatment before radiotherapy. They also received the instructions on preventive oral hygiene. After radiotherapy, the patients were followed up.Results:Fifty patients were followed up for 1-3 years. Radiation caries was observed in 4 cases with poor oral hygiene habit. Conclusion:A comprehensive regime of dental care can prevent radiation caries effectively.