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Brachytherapy (HDR & LDR) Brachytherapy is a method of delivering radiation to tumors by placing radioactive sources either within or immediately adjacent to tumor tissue. Because the radiation source is very close to the tumor, therapeutic radiation can affect the tumor directly while minimally affecting normal tissue. Brachytherapy can be provided using low dose rate (LDR) or high dose rate (HDR) techniques, depending on the length of time the radioactive sources remain in place.
Daily irrigation. There are several types of oral irrigators, but like all self-care devices they require daily use for maximum efficacy. The most common type for home use is a pulsed flow irrigator. There are also direct flow or steady stream irrigators. Most of the studies completed on oral irrigation were done using pulsed irrigators by Waterpik Technologies. Results cannot be extrapolated to other pulsating devices or direct flow irrigators.