Why Sharp Tooth Pain Comes Back the Moment You Stop Using Sensitive Toothpaste
German Scientists Found That Most Sensitive Toothpastes Simply Numb the Nerve, While Real Relief Comes From Plugging the Microscopic Holes and Cracks in Your Teeth.
Most sensitive toothpastes work by numbing the nerve, which is why the twinge comes straight back when you switch brands. LACALUT® SENSITIVE, from the German brand behind over 1 billion tubes sold, takes a different approach: instead of numbing, it works to plug the microscopic holes and cracks in the teeth, tackling sensitivity at the source.
“I’m currently chewing ham and cheese toasties made of bread crusts — no pain!”— Leanne M., reader
Stocked by pharmacies across Australia
The ice-water test everyone with sensitive teeth knows
A cold drink. A spoon of ice cream. A deep breath on a winter morning. For a lot of Australians the reaction is the same: a sharp, electric twinge that makes you stop mid-sip.
Most people reach for a “sensitive” toothpaste from the supermarket, and for a while it helps. Then they run out, or switch to a whitening tube for a few weeks, and the twinge is back as if nothing ever happened.
Why the twinge comes straight back
Under the enamel is a layer called dentine, and dentine is riddled with microscopic tunnels that run straight to the nerve. When enamel wears thin or gums pull back, those tunnels are exposed. Cold, sweet or sour reaches the nerve through them. That is the twinge.
Most sensitive pastes answer this by numbing the nerve at the end of the tunnel. It works, but only while you keep applying it. The tunnels are still open. Stop, and the signal gets through again.
What a real fix would need to do
- Calm the nerve for that first cold drink.
- Work on the exposed surface, so the relief has something to build on.
- Be gentle enough for every day, with a brush that does not make it worse.
The German approach: close the tunnels
The formulators at Dr. Theiss Naturwaren in Homburg, the family-owned company behind LACALUT®, took the second route. LACALUT® SENSITIVE is built to help seal the tooth surface, laying down a mineral layer over those tiny openings so cold and sweet have a harder time reaching the nerve in the first place.
It still calms the nerve for that first cold drink. But the work it does on the surface is what readers describe as relief that builds with daily use, rather than relief that vanishes the day the tube runs out.
LACALUT® SENSITIVE 3-Part Kit
The Sensitive toothpaste, three bottles of soothing rinse and an extra-soft toothbrush. Made in Germany, dispatched from Australia.
- 1 × Sensitivity Toothpaste 75ml
- 3 × SENSITIVE Mouthwash 300ml
- 1 × Extra-soft toothbrush
What the first week feels like
The paste itself is mild and low-foam, with none of the harsh grit of a whitening tube. Readers often describe the first change as the small things: a sip of cold water without bracing for it, biting into an apple properly, an iced coffee that is just an iced coffee.
The soothing rinse finishes the routine between the teeth, and the extra-soft toothbrush in the kit is there for a reason: a hard brush is one of the quickest ways to make teeth reactive in the first place.
What to expect
How readers describe the routine settling in. Everyone is different, and the guarantee covers you either way.
- First brushMild and low-foam, with none of the grit of a whitening tube. It calms the nerve for that first cold drink.
- First weekThe ice-water test: a sip without bracing for it. The extra-soft brush stops making things worse.
- Week 3–4The surface work builds with every brush. Most readers say cold is starting to feel like just cold again.
- Day 30Your guarantee window closes. Still not for you? Email the team, send it back, refunded.
What Australian readers said
“I bought mine yesterday. It’s too soon to judge, but it feels like my gums are less painful already. I’m currently chewing ham and cheese toasties made of bread crusts — no pain!”
“I have been using it for about a week and have found it to be really good. Nice flavour and sensitivity has improved. The toothbrush with the very fine bristles is awesome too.”
“Fantastic product, very happy with flavour and taste. A little bit pricey, but a small amount goes a long way.”
“This toothpaste has really helped my gum recession and sensitivity.”
What's in each
| LACALUT® SENSITIVE 3-Part Kit | Supermarket “sensitive” paste | Regular mint paste | |
|---|---|---|---|
| Calms the nerve | ✓ | ✓ | ✗ |
| Works to seal the tooth surface | ✓ | Numbing-led, typically | ✗ |
| Extra-soft brush included | ✓ | ✗ | ✗ |
| Made in Germany, pharmacy heritage since 1925 | ✓ | Varies | Varies |
| 30-day satisfaction guarantee | ✓ | Store policy | Store policy |
| What you get | Toothpaste + 3 rinses + brush | One tube | One tube |
Category comparisons describe what is typical of supermarket toothpastes; individual products vary. Check the pack.
It is not the cheapest tube in the aisle
LACALUT® costs more than a $2 supermarket paste. It is made in Germany, shipped by sea and dispatched from an Australian warehouse. The complete 3-Part Kit, with the Sensitive toothpaste, three bottles of soothing rinse and an extra-soft toothbrush, is $67.95, against $89.75 if you bought the three parts separately.
Every order is covered by a 30-day satisfaction guarantee. If it is not for you, email the team within 30 days of delivery and they will arrange a return.
How Australians use it
- Morning and night: brush gently with the Sensitive toothpaste for two minutes, with light pressure.
- Then rinse: a capful of the Sensitive mouthwash soothes between the teeth where brushing misses.
- Use the soft brush: extra-soft bristles for teeth and gums that react. Replace every three months.
- Keep going: the surface work is daily work. Stay with the routine and let the relief build.
Questions readers asked
How is it different from the sensitive paste at the supermarket?
Most supermarket sensitive pastes rely on numbing the nerve. LACALUT® SENSITIVE calms the nerve and works to seal the tooth surface over the microscopic openings, so the relief has something to build on.
Can I use it every day, like a normal toothpaste?
Yes. It is a daily toothpaste, morning and night, and it is designed to replace your current tube rather than add a step.
Is it really made in Germany?
Yes. LACALUT® is made by Dr. Theiss Naturwaren in Homburg, Germany, and sold in more than 60 countries. The Australian stock is shipped by sea and dispatched from an Australian warehouse.
Who is this not for?
If a tooth hurts constantly, throbs, or wakes you at night, that is a dentist’s job, not a toothpaste’s. LACALUT® SENSITIVE is for the everyday cold-and-sweet twinge of sensitive teeth.
I already have a tube on the go. Switch now or wait?
Switch now. The 30-day guarantee runs from the day the kit is delivered, so starting straight away gives you the full window to decide. Keep the old tube for travel.
How quickly does it arrive, and what if I don’t like it?
Orders are dispatched within 1–2 business days from Australia, tracked. Every order is covered by a 30-day satisfaction guarantee: email [email protected] within 30 days of delivery to arrange a return.