Based in London, Ontario, Servicing Southwestern Ontario

Find the Root Cause.

You are not broken. We help adults and kids resolve TMJ, sleep, and airway issues by finding the true source of dysfunction, then guiding a simple plan you can own.

4.8 stars on Google | Over 170 Google Reviews
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(519) 455-4110

We’re available by phone Monday to Wednesday, 8:00 a.m. to 5:00 p.m. Need to reach us outside those hours? Our contact form is always open!

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Let's find your next step, together.

Financing Options

Flexible payment options may be available through Beautifi.

Healing starts within.

Most people with jaw pain, headaches, snoring, or airway concerns get treated symptom by symptom and never hear why it is happening. We slow down, listen, and find the source.

Our role is to help you see what your instincts already suspect, then create the conditions for change. We examine joints, muscles, bite, and airway together so the plan makes sense and the next step feels clear.

Care here blends precise clinical work with calm coaching, plain language, and compassion. The goal is less pain, easier breathing, better sleep, and steady progress you can take ownership of.

Find First

We connect symptoms to mechanics before recommending treatment so your plan is based on cause, not guesswork.

In-House Precision

Many appliances are designed and 3D-printed in house for better precision, faster turnaround, and a more comfortable fit.

Collaborative Care

We work with physicians, ENTs, physiotherapists, chiropractors, and massage therapists when multi-disciplinary support helps.

Clear, Patient-Owned Plans

Short steps, plain English, measurable checkpoints, and honest timelines so you always know what comes next.

Three core areas. One Find the Source approach.

Whether you are dealing with snoring, jaw pain, clenching, or airway development concerns, we look at the full system first, then build a treatment plan you can understand and own.

Woman sleeping peacefully
Sleep & Airway 01
Sleep & Airway Issues

Breathe better. Sleep deeper.

Snoring and sleep apnea are often signs that the airway is not functioning the way it should. We evaluate airway structure, jaw position, and symptoms together to understand what is really driving poor sleep.

Treatment may include a custom mandibular advancement appliance as a CPAP alternative, along with airway-centered options such as soft palate laser therapy when appropriate.

Common Questions
Is there a dental alternative to CPAP for sleep apnea?

Yes. Some patients may be candidates for a custom oral appliance as a CPAP alternative for sleep apnea. The right option depends on your diagnosis, airway structure, and the severity of your condition. Root Cause Dental Group focuses on airway-centered care and helps determine when a dental sleep appliance may be an appropriate part of treatment.

Who is a good candidate for a CPAP alternative?

Good candidates for a CPAP alternative are often people with mild to moderate obstructive sleep apnea, people who cannot tolerate CPAP, or people looking for another treatment option that better fits their lifestyle. The best way to know is through a proper airway and sleep evaluation. Root Cause Dental Group evaluates airway structure, jaw position, and symptoms together to guide the right recommendation.

What kinds of sleep appliances might be recommended?

Mandibular Advancement Appliance to open the airway and treat Snoring and Sleep Apnea. Deka Laser to tone soft palate for snoring and Sleep apnea.

Learn About Sleep & Airway Care →
Patient at TMJ consultation
TMJ & Jaw Pain 02
TMJ & Jaw Pain

Relief that starts at the root.

Jaw pain, clicking, headaches, clenching, and facial tension are often mechanical problems, not isolated symptoms. We assess the joints, muscles, bite, and airway together to understand why the strain is happening.

Treatment may include daytime orthotic therapy to help reposition the lower jaw, nighttime appliances to reduce clenching and grinding, and a plan that restores comfort step by step.

Common Questions
How do I know if I need TMJ treatment?

You may need TMJ treatment if you have recurring jaw pain, clicking, headaches, clenching, facial tension, or trouble opening and closing your mouth comfortably. If symptoms are affecting sleep, eating, or daily comfort, it is worth having the jaw joints, bite, and surrounding muscles evaluated. Root Cause Dental Group focuses on diagnosing the mechanical source behind TMJ-related symptoms instead of only managing the pain.

Can a dentist help with jaw pain and headaches?

Yes. Jaw pain and headaches are often connected to bite imbalance, clenching, joint strain, or airway-related tension. A dentist with TMJ, sleep, and airway experience can help identify what may actually be causing the problem. Root Cause Dental Group takes a root-cause approach that looks at how the bite, jaw joints, airway, and muscle function work together.

What are the most common symptoms of TMJ disorder?

Common symptoms of TMJ disorder include jaw pain, clicking or popping, limited jaw movement, facial soreness, headaches, ear pressure, neck tension, and teeth grinding or clenching. Many people also notice their symptoms are worse in the morning or after stress. Root Cause Dental Group has extensive experience evaluating these symptoms as part of a broader jaw, bite, and airway assessment.

Learn About TMJ Treatment →
Doctor explaining airway anatomy model
Airway Orthodontics 03
Airway Orthodontics

Orthodontics with function in mind.

Airway orthodontics looks beyond straight teeth and considers how the jaws, arches, tongue posture, swallowing patterns, and airway work together. That matters for both children and adults.

Treatment may include slow palatal expansion, guided growth appliances, Froggy Mouth therapy for swallowing patterns, clear aligners, and airway-focused planning that supports breathing and long-term stability.

Common Questions
What is airway orthodontics?

Airway orthodontics is orthodontic treatment planned with breathing, jaw development, and airway health in mind. It looks beyond straight teeth and considers how the jaws, dental arches, tongue posture, and airway work together. Root Cause Dental Group believes orthodontic planning should support both function and healthy breathing, not just appearance.

Can airway orthodontics help adults, or is it only for kids?

Airway orthodontics can help both children and adults. In children, it often focuses on guiding development early. In adults, it is more commonly used to improve function, bite balance, arch form, and the relationship between the jaws and airway. Root Cause Dental Group has a strong focus on airway, growth, and long-term functional stability in both age groups.

When should a child be evaluated for airway orthodontics?

A child should be evaluated when they show signs such as mouth breathing, snoring, restless sleep, crowded teeth, narrow palate development (this means having a narrow upper jaw), poor tongue posture, or concerns about facial growth. Early evaluation helps determine whether treatment is needed now or whether growth should simply be monitored. Root Cause Dental Group places a strong emphasis on early airway and growth assessment because timing can make a meaningful difference.

What signs of airway problems should parents watch for?

Parents should watch for mouth breathing, snoring, restless sleep, dark circles under the eyes, crowded teeth, narrow palate development (this means having a narrow upper jaw), poor tongue posture, daytime fatigue, and difficulty waking rested. When several of these signs appear together, an airway-focused evaluation may help. Root Cause Dental Group regularly evaluates these patterns as part of pediatric airway and orthodontic screening.

Learn About Airway Orthodontics →
How We Work

Not just what we treat, but how we care.

Every step is designed around clarity, compassion, and practical progress. Here is what that looks like in real treatment.

1

Diagnose Clearly

We connect symptoms to their mechanical source before recommending treatment so your plan feels grounded and specific.

2

Build Precisely

Many appliances are designed and produced in house to improve precision, comfort, and turnaround time.

3

Support Calmly

Our environment is quiet, respectful, and low-pressure so you feel seen, informed, and supported from day one.

4

Collaborate Thoughtfully

When it helps, we co-treat with physicians, ENTs, physiotherapists, chiropractors, and massage therapists.

5

Keep It Simple

You leave with a patient-owned plan, clear next steps, and honest checkpoints so progress never feels vague.

6

Measure Progress

The goal is less pain, easier breathing, better sleep, and meaningful day-to-day improvement you can actually feel.

Serving all of Southwestern Ontario.

Root Cause Dental Group is based in London, Ontario, but our patients come from across the region. We regularly see patients from Windsor to Kitchener, from Sarnia to Owen Sound, and everywhere in between, including St. Thomas, Woodstock, Stratford, Chatham-Kent, Tillsonburg, and Simcoe.

If you've been searching for TMJ treatment, sleep apnea solutions, or airway orthodontics in SW Ontario and finding limited specialist options nearby, we're worth the drive. We're also happy to work alongside your existing healthcare team, including your family dentist, physician, or any specialists you already see.

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Exterior of Root Cause Dental Group in London, Ontario

A closer look at the space and people behind the care.

From your first consult to your follow-up visits, we want the experience to feel clear, welcoming, and grounded in real care. Here is a look at the clinic, the team, and the space where that work happens every day.

Our Doctors

Led by specialists who ask why.

Both Dr. Sep and Dr. Lisa built their practices around a single conviction: that treating symptoms without understanding their source is not really treatment at all. Their collaborative approach centers on clarity, compassion, and helping patients make steady progress.

Portrait of Dr. Sepehr Jafarpour

Dr. Sepehr Jafarpour

DDS, MSc Biostatistics · TMJ, Sleep & Airway

Dr. Sep's approach always begins with "why." He takes time to understand each patient's unique situation, goals, and concerns before building a plan that fits. He holds a Master of Science in Biostatistics from the University of Toronto and a DDS from the University of Detroit Mercy School of Dentistry.

Portrait of Dr. Lisa Popp

Dr. Lisa Popp

DDS, BSc Genetics · Airway, Sleep & Functional Medicine

Over her 30-year career, Dr. Lisa has been committed to continuous growth and a deep dissatisfaction with merely treating symptoms. Originally from Dorchester, she earned her DDS from Western University and holds certifications in nutrition, functional medicine, functional genomics, and airway dentistry.

What our patients are saying.

4.8 stars on Google | Over 170 Google Reviews
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Take the first step toward real progress.

Whether you are dealing with jaw pain, snoring, clenching, poor sleep, or airway development concerns, we are here to help you understand what is happening and what to do next.

We’re available by phone Monday to Wednesday, 8:00 a.m. to 5:00 p.m. Need to reach us outside those hours? Our contact form is always open!

Financing Options

Flexible payment options may be available through Beautifi.

Book a Consultation

Find the Root Cause

Book a Consultation