Is your mouth becoming hard to open?
If you chew gutkha, pan masala, khaini or tobacco and your mouth feels tight, burns while eating or won’t open fully, these can be early signs of Oral Submucous Fibrosis (OSMF). Check your stage in 60 seconds and get a doctor-guided plan.
How many fingers fit vertically in your mouth?
Stack your fingers one above the other between your upper and lower front teeth. Don’t force it.
Do these symptoms sound familiar?
Tap the ones you have noticed. We’ll explain what each one means.
From a 60-second check to a plan that fits your stage
- 1
Take the self-test
Seven quick questions, about 60 seconds. Free and private.
- 2
Know your stage
See where you are, from Stage 1 to Stage 4, and what it means for you.
- 3
Start your Triple Care plan
Products matched to your stage, with clear morning and night directions.
- 4
Get free doctor guidance
By video call, on WhatsApp or at a Marcel Certified Clinic near you.
What’s happening inside your mouth?
OSMF usually develops slowly, over years of chewing. Knowing your stage helps you take the right step at the right time.
One therapy. Three solutions.
Three products that work together as one daily routine, made for people living with OSMF.
Talk to an OSMF expert. It’s free.
Confirm your stage, ask about your plan or get help to quit the habit. Choose the way that suits you.
Find a Marcel Certified Clinic
Get your mouth opening measured and your plan set in person, at one of 120+ trained clinics across India.
When I met patients who could not open their mouth to eat, speak or smile without pain, I knew we had to do more.
Science you can trust. Care you can feel.
Marcel OMR Therapy is a structured, doctor-guided programme by JanSuta Pharmaceuticals, built on years of research into Oral Submucous Fibrosis.
Innovating for better OSMF care
8+ research papers and publications.
A network of 120+ Marcel Certified Clinics.
Free consultations and clear, simple guidance.
Developed with pride, for patients across India.
People like you, regaining comfort and confidence
Sample stories shown for design only. The live site will feature real stories shared with each patient’s consent.
What people ask us most
Message our experts on WhatsApp. It’s free and private.
See all FAQsYou don’t have to live with a tight mouth.
Small changes today can help you eat, speak and smile comfortably again. Take the first step towards better oral health.
Shop Marcel Triple Care
Therapy products and kits for every stage of OSMF. Not sure what you need? The self-test recommends a plan in 60 seconds.
Book your free consultation
Talk to an OSMF expert about your symptoms, your stage and your plan. There is no charge.
Find a Marcel Certified Clinic
120+ clinics trained in Marcel OMR Therapy. Get your mouth opening measured and a plan from a doctor near you.
Understanding OSMF
A clear guide to Oral Submucous Fibrosis: what it is, why it happens, how it progresses and what you can do about it.
What is OSMF?
Oral Submucous Fibrosis (OSMF) is a long-term condition that makes the lining inside the mouth, the oral mucosa, stiff. Over time the tissue loses its stretch. Opening the mouth, eating, speaking and keeping the mouth clean all become harder.
What causes it?
Gutkha, pan masala, supari and khaini are the leading cause.
Chewing or smoking tobacco adds to the damage.
Can irritate the lining of the mouth, especially once it is sensitive.
Can add to irritation of the oral lining.
Some people may be more likely to develop OSMF.
Signs to watch for
- Stiffness inside the mouth
- Reduced mouth opening
- Pale or white (blanched) lining
- Burning, especially with spicy food
- Difficulty speaking clearly
- Bad breath and trouble keeping the mouth clean
- Feeling less confident in social situations
The four stages
Doctors usually stage OSMF by how wide you can open your mouth, measured in millimetres between your upper and lower front teeth.
Ranges are approximate. Only a doctor can confirm your stage.
Can I recover?
Yes, improvement is possible with the right care, consistency and patience. The earlier you start, the more mouth opening you can protect. Stopping the habit is the most important step, together with a daily care routine and regular follow-ups with your doctor.
Patient guide
Practical reads for every stage, from checking your mouth opening to quitting the habit.
How the therapy works
A structured, doctor-guided programme for people living with OSMF. Here is what happens, from your first check to your follow-ups.
Five steps, one clear path
- 1
Check
Take the free 60-second self-test from home. It asks about your mouth opening, symptoms and habits.
- 2
Know your stage
See your likely stage, from Stage 1 to Stage 4, with a clear explanation of what it means.
- 3
Start your Triple Care plan
Get the products matched to your stage, with simple morning and night directions.
- 4
Consult a doctor, free
Talk to an OSMF doctor by video, on WhatsApp or at a Marcel Certified Clinic. They confirm your stage and guide your plan.
- 5
Track your progress
Re-check your mouth opening every 4 weeks and review your progress at follow-ups.
Three products, each with a job
Foundation care soothes and protects. Advanced care supports reduced tightness and better opening. Daily care keeps teeth and gums healthy.
Your morning and night routine
About five minutes, twice a day. Follow the directions on each pack and your doctor’s advice.
Built on four principles
Built on years of research into how OSMF affects the mouth.
Every plan can be confirmed and adjusted by a doctor, free.
A clear routine and regular check-ins, stage by stage.
Used across a network of 120+ certified clinics.
Find your stage in 60 seconds.
Seven quick questions, a plan for your stage and a free doctor consultation.
Science you can trust. Care you can feel.
Marcel OMR Therapy™ is a structured rehabilitation programme for Oral Submucous Fibrosis by JanSuta Pharmaceuticals. Our purpose is to build evidence-based healthcare solutions that improve quality of life and restore confidence.
When I met patients who could not open their mouth to eat, speak or smile without pain, I knew we had to do more.
Built for people who live with OSMF every day
Kandarp Bakshi has spent more than 40 years as a researcher and innovator in oral health. Meeting patients who could not eat, speak or smile without pain led him to develop a structured, evidence-based approach to OSMF care: Marcel OMR Therapy.
Today the programme brings together therapeutic products, doctor guidance and a growing network of Marcel Certified Clinics, so patients get the right care at every stage.
Four pillars
Every product starts with research into how OSMF affects the mouth.
We build on published research and clinical experience.
Care designed around eating, speaking and smiling comfortably.
We measure success by real improvement in patients’ lives.
Care that covers the whole journey
8+ research papers and publications.
Recommended across 120+ Marcel Certified Clinics.
Free consultations and clear, simple guidance.
Products, doctor guidance and follow-ups in one programme.
Thousands of patients guided across India.
Developed with pride, for patients across India.
Start with a 60-second check.
Find your likely stage and get a doctor-guided plan, free.
Frequently asked questions
Answers about OSMF, the self-test, our products, consultations and orders.
Our experts are a WhatsApp message away. It’s free and private.