A miswak does not expire, and one stick lasts about a month
No expiry date is printed on a miswak, but after its out of the vacuum seal the stick doesn’t forever either. A 2024 study handed sticks to 24 people and checked them a month later, and most were carrying bacteria by then, so replace yours once a month.1
84%
of sticks picked up bacteria within a month2024 study, reference 1
1 month
then start a fresh stick
What we learned from nine research trials
Read Together In 2022
The clearest picture comes from a 2022 review that pooled nine trials, and it found two things at once.
On its own, a miswak is level with a toothbrush with toothpaste. Added to brushing, it beats brushing alone.1
Miswak on its ownA tie with the toothbrush
On both plaque and sore gums, the gap between a miswak and a toothbrush was too small to call. Neither one won.
Miswak added to brushingA clear improvement
People who brushed and also used a miswak had less plaque and healthier gums than people who only brushed, and the result was strong enough to be real rather than chance.
| Comparison | Measured | Size of gap (SMD) | Likely range (95%) | p | Verdict |
|---|---|---|---|---|---|
| Miswak alone vs toothbrush | Plaque | 0.39 | -0.05 to 0.83 | 0.08 | Tie |
| Miswak alone vs toothbrush | Sore gums | 0.13 | -0.16 to 0.43 | 0.37 | Tie |
| Miswak added to brushing | Plaque | 0.68 | 0.14 to 1.22 | 0.01 | Miswak wins |
| Miswak added to brushing | Sore gums | 0.66 | 0.03 to 1.29 | 0.04 | Miswak wins |
| Ramli and colleagues, 2022, reference 1. No company paid for these trials. | |||||
How to read those three numbers
SMD is how big the gap between the two groups is, so a bigger number means a larger difference. The 95% range is where the true effect most likely sits, and when that range crosses zero the result could still be nothing, which is why the two rows for a miswak on its own count as a tie. p is the chance the result is a fluke, and below 0.05 it is treated as real. The two rows for a miswak added to brushing clear that bar. The two on their own do not.
What the trials did not check
All nine trials were short, and nobody has followed miswak users for years, so nobody knows what a miswak does over a lifetime. 1
The miswak ties even though almost nobody is taught to use one
Everybody in those nine trials was taught to brush as a small child, but hardly any of them had been shown how to hold a miswak. The reviewers asked for studies on the right way to use one. 1 So a miswak reached a tie while the people holding it were guessing. A 2024 trial agrees, because the people taught the technique did better. 2 Never being taught is also why people give up on a miswak.
Where each Toothbrush wins
The Miswak stick needs nothing else
A toothbrush needs water, toothpaste and a sink before it does anything. A miswak does not need any of that, because it has its own silica, its own trace of fluoride and its own bacteria-killing chemistry. A toothbrush with miswak powder in the bristles is still a toothbrush, and nobody has tested whether it cleans proficiently without paste.
| Measure | Miswak | Manual toothbrush | |
|---|---|---|---|
| Plaque and sore gums, alone | Level | Level | |
| Added to brushing | More plaque removed | Nothing to add | |
| Fluoride | About 1 ppm3 | About 1,450 ppm with paste | |
| Same shape every time | Fibers vary | Uniform | |
| Technique taught | Rarely | From childhood | |
| Replace it | Monthly | Every 3 to 4 months | |
| Sources: references 1, 3, 4 and 5. | |||
Read on
When a toothbrush is the better choice
Braces
You wear braces or a retainer
Brackets and wires need a small head that reaches between them, and a chewed fiber tip is too broad.
Gums
Your gums have started to recede
Gums that already pull back give way under pressure, so use a soft toothbrush until a dentist checks your technique.4
Children
A young child brushes alone
A miswak has to be chewed, trimmed and replaced on a schedule, which is more upkeep than a young child manages.
Upkeep
You will not keep up the routine
A 2024 study found bacteria on 84% of sticks within a month, so a forgotten miswak is not clean.5
The strongest result in the review was not a miswak used instead of a toothbrush. People who used both did best.
Ramli and colleagues, 2022
So if you already brush twice a day with fluoride toothpaste, keep that up and add a miswak, because using both is where the gain showed up.1 And if you have no toothbrush, no toothpaste and no clean water, a miswak is the best choice. The World Health Organization recognized the chewing stick in 1987 and called it safe in 1989.6
Questions
Questions People Ask
Is a miswak as good as a toothbrush?
Used on its own, yes. Nine trials read together found no clear winner between a miswak and a toothbrush.
Can miswak fully replace my toothbrush?
Yes. Many people use the miswak stick as their only oral care tool. If you want extra coverage for back molars, use it alongside a toothbrush at night.
Do I need toothpaste with miswak?
No. Miswak sticks naturally contain antibacterial agents such as natural fluoride, silicon, Vitamin C, salvadorine, and trimethylamine. These properties make them effective as a natural toothbrush for oral care and teeth whitening without toothpaste! Read more on our blog here
How long does one Miswak stick last?
The lifespan of a Miswak stick depends on usage and trimming frequency. On average, a single Miswak stick can last 2-3 weeks of consistent use. Read more on our blog here
Is miswak safe for kids?
Yes, clinical trials in children aged 6–14 show miswak removes plaque comparably to a toothbrush, though younger children should be supervised for proper technique and it's best used alongside fluoride toothpaste rather than replacing it.