| 摘要 |
PROBLEM TO BE SOLVED: To provide a multi-functional toothbrush capable of brushing not only teeth but also the highly perceivable parts of dental roots, interdental parts and gums, easily removing dental plaque, and curing and preventing the decayed teeth, periodontal diseases and the like. SOLUTION: Loop-shaped filaments 5 with resiliency are fitted into a flocking base 11 of a toothbrush head, and a variety of machining (inward curl machining, groove machining, projection machining, and undulation machining) of the filaments 5 is performed for the purpose of reinforcing the removal of the dental plaque.
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