Steel Sonic Toothbrush Replacement Brush Heads – 6 Pack

These replacement brush heads are designed exclusively for the GuruNanda Steel Sonic Toothbrush. They are precision-engineered to fit the Steel Sonic model for a secure, optimal connection—they are not intended for use with other GuruNanda electric toothbrush models.

DuPont bristles are a premium bristle grade known for their consistency, durability, and softness. The bristles on these replacement heads are soft, dense, and end-rounded, meaning the tips are smooth rather than sharp-cut—reducing the risk of gum irritation while still delivering sonic vibration.

Yes. The soft DuPont bristles are specifically well-suited for people with sensitive teeth, gums, or other dental sensitivities. The dense, rounded bristle configuration provides thorough cleaning without aggressive contact against gum tissue.

Pull the existing brush head straight out until it unlocks and remove it. Then align the new brush head with the handle and push it in until you hear and feel a click, confirming it is securely locked in place. No tools required.

Every three months, or sooner if the bristles appear frayed, splayed, or flattened. Worn bristles are less effective at plaque removal and can be harder on gum tissue. The three-month replacement cycle aligns with standard dentist recommendations for all toothbrush types.

Yes. They are engineered to work in conjunction with the Steel Sonic Toothbrush's sonic vibration technology. The DuPont bristles are designed to flex and work effectively at sonic frequencies, delivering deeper cleaning between teeth and along the gumline than manual brushing.