Soft vs Medium Bristles: Why Your Toothbrush Choice Matters

Walk down the toothbrush aisle and you'll see soft, medium, and hard bristles side by side. That choice actually matters more than the colour or brand on the handle. Here's the case for going soft.

What bristle stiffness really does

Bristles don't just remove plaque — they also press against enamel and gum tissue thousands of times a week. Stiffer bristles transmit more of that force. Over years, that adds up to two problems:

• Gum recession. The gumline slowly wears back, exposing sensitive root surfaces.
• Enamel abrasion. Micro-scratches on the tooth surface, especially near the gumline, where enamel is thinnest.

Both are largely irreversible, and both are far more common in people who use medium or hard bristles — or who scrub hard with a soft brush.

Why soft bristles are the standard

Soft bristles flex around the curves of each tooth and slip just under the gumline, where plaque hides. They remove the same soft plaque a medium brush does — hardened tartar can only come off with a professional dental cleaning anyway. So there's no cleaning benefit to going harder, only downsides.

'Extra soft' — when to consider it

Extra-soft bristles are worth a look if you have:

• Sensitive teeth or exposed roots
• Gum recession or a history of gum disease
• Recent dental work like crowns, veneers, or implants
• A habit of brushing too aggressively

The pressure test

Take a look at a brush you've been using for a month. If the bristles are splayed outward like a broom, you're pressing too hard — regardless of stiffness. Try holding the brush with just your fingertips, or switch to an electric brush with a pressure sensor that lights up when you push too hard.

When to replace

Every 3–4 months, or sooner if bristles fray. A worn brush cleans less and irritates gums more.

Noticing sensitivity or a receding gumline already? Have a look at our tooth sensitivity guide, or book with the Morgan Heights team — call 604-535-8835.