Is it possible to make a toothbrush that does the job without contributing to landfill waste?

Another eco-friendly toothbrush on the market is the Radius Intelligent Toothbrush. The brush beeps when the user has brushed for two minutes; this is the recommended brushing time, as determined by dentists. An indicator light turns red after 90 days to inform the user that it's time to change the toothbrush head. A replaceable head reduces the waste of buying a whole new toothbrush every 90 days. Consumers can purchase a 3-pack of replaceable toothbrush heads for US$ 6.95. -Business Week

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