Moyuum 3 Stages Training Toothbrush Set, 3pk

Stage 1 and 2 are made from a silicone-like material called Thermoplastic Elastomer (TPE). It’s super durable and ultra-soft. Its thin, triangular bristles reach small spaces with ease and are much gentler on teeth and gums than the standard nylon kind. The Fine Toothbrush head is fully replaceable, lasts up to twice as long as traditional alternatives, and is 100% recyclable.

Stage 3 brush uses PBT (polybutylene terephthalate) which is a polyester compound. Nylon bristles are more flexible but they a water-absorbent and more easily deformed. Therefore, nylon bristles are generally made thicker to be longer-lasting, but that can make them more harsh feeling unless the ends are rounded.PBT bristles have a tapered needle-shaped end to make them more thin and flexible and better for reaching between teeth and gums.