Electric toothbrushes with head wear indicator

Head wear indicator

— an indicator that signals the wear of the working nozzle and the need to replace it.

This function pertains primarily to toothbrush nozzles, which require regular replacement (typically every 3-6 months) to maintain optimal cleaning performance and prevent potential damage to the teeth and gums. The specific device and indicator functionality can vary. One straightforward option is a set of colored bristles integrated into the brush head. As these bristles lose their color over time, it serves as a visual indicator that it's time to replace the head. Another method involves a timer that tracks the total usage time of a particular head. This feature is commonly found in more advanced toothbrushes, including models that offer smartphone synchronization capabilities (refer to "synchronization with a smartphone").

Anyway, the presence of this indicator simplifies the maintenance of the brush and reduces the risk of missing the moment when the nozzle needs to be replaced.