How often should you change your toothbrush?
Most dentists recommend replacing it every three months—but studies show many people keep theirs for much longer. Worn-out bristles, hidden bacteria, and reduced cleaning power can harm your oral health. The good news? With BrushO’s smart electric toothbrush, every box comes with four replaceable brush heads, providing you a year of easy replacements without the need for extra shopping. Here’s everything you need to know about toothbrush replacement frequency, risks, and tips.

A toothbrush is your first line of defense against plaque, cavities, and gum disease. Over time, however, bristles wear down and lose their ability to clean effectively. Even worse, old toothbrushes can harbor bacteria that contribute to oral infections.
👉 Think of it like car tires—worn bristles simply don’t perform the job anymore.
If you notice any of these, it’s time for a new brush head—even if it hasn’t been 3 months yet.
Skipping replacements doesn’t save money—it leads to higher dental bills down the line.
This is where BrushO makes oral care easier:
Enough for a full year of dentist-recommended replacements.
Designed to clean thoroughly without damaging enamel or gums.
The BrushO app can send alerts when it’s time to change your brush head.
No need to buy separate packs every few months—everything you need comes with your toothbrush.
👉 With BrushO, following the 3-month rule is simple, convenient, and stress-free.
Q1: How often should I replace my toothbrush?
Every 3 months, or sooner if bristles are worn.
Q2: Do electric toothbrush heads last longer?
Not necessarily—electric brush heads also need replacing every 3 months.
Q3: Can I clean and reuse old toothbrush heads?
Rinsing helps, but it doesn’t restore worn bristles. Replacement is still needed.
Q4: How does BrushO help with replacements?
BrushO provides 4 brush heads per box, covering a full year of replacements.
Changing your toothbrush is one of the simplest and most effective ways to protect your oral health. Follow the 3-month rule, and you’ll reduce the risk of cavities, gum disease, and bad breath. With BrushO’s 4 replaceable brush heads per box, you’ll always have a fresh brush ready, making good oral hygiene easier than ever.
👉 Stay fresh, stay healthy, and let BrushO handle the reminders.

Excessive sugar isn’t just bad for your waistline—it wreaks havoc on your teeth. Discover how sugar impacts oral health and how smart brushing with BrushO can protect your smile.

Is sparkling water safe for your teeth? Discover how carbonation affects enamel, what science says, and how to drink smarter without harming your smile.

Lemon water is praised for its detox benefits, but how does it affect your teeth? Learn the truth about acidity, enamel erosion, and how to protect your oral health with every sip.

Can salt really clean your teeth or whiten your smile? Discover the science behind brushing with salt and whether it’s safe for your oral health.

Pregnancy affects more than your body—it changes your oral health too. Discover how hormonal shifts influence gum health, tooth sensitivity, and the importance of prenatal dental care.

Many people struggle to maintain consistent brushing habits. Discover the psychological, behavioral, and lifestyle reasons behind poor brushing routines—and how smarter guidance can help build lasting oral care habits.

Think sipping beverages all day is harmless? Discover how frequent sipping—yes, even of healthy drinks—can silently damage your teeth, and how to protect your enamel with smarter habits and advanced solutions like BrushO.

Discover why an AI-powered toothbrush became the best Christmas gift I’ve ever received. Learn how smart brushing changed my routine, health, and confidence — all in just two minutes a day.

Turn brushing into a fun daily challenge! Discover how BrushO transforms kids’ oral care habits through competitive rewards, smart scoring, and daily motivation.

Struggling with missed areas during brushing? Discover how BrushO’s AI technology ensures full-mouth coverage by detecting and tracking the spots you often overlook.