— Board-Certified Specialists

Relief from complex jaw pain, headaches, and sleep disorders.

Expert diagnosis and conservative treatment for jaw pain, facial pain, headaches, and sleep apnea.

Fewer than 500 board-certified specialists worldwide

Diplomates of the American Board of Orofacial Pain

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4.8

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Trusted by hundreds of Google reviewers

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Accredited Sleep Clinic
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American Board of Orofacial Pain
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School of Dentistry Faculty Members
32 years experience
Years of Clinical Experience

Specialized care for complex pain, when others fall short.

South Bay TMJ, Sleep, Headache & Orofacial Pain Institute is a specialized medical practice in Torrance, CA, focused on diagnosing and treating pain in the jaw, face, head, and neck.

Our board-certified specialists, Dr. Paul Grin and Dr. Eric Grin, treat conditions that many other providers struggle to diagnose, using conservative, non-surgical methods backed by advanced diagnostic technology.

The average TMJ patient sees 5.3 doctors over 4.2 years before finding the right specialist. We help patients find answers faster.

American Academy of Orofacial Pain

A woman with a pained expression touches her cheek, appearing to experience discomfort or pain in her jaw or mouth.
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— Our Philosophy

One patient at a time. Always.

We never double-book appointments. Initial evaluations run 45 to 60 minutes because an accurate diagnosis is the foundation of effective treatment.

— What We Treat

Conditions we specialize in.

From TMJ disorders and chronic headaches to sleep apnea and complex nerve pain, we treat the conditions that affect your jaw, face, head, and neck.

TMJ & orofacial pain

TMJ disorders, jaw pain, jaw clicking and locking, facial pain, and related conditions. We find the cause and create a treatment plan that works.

Headaches & Migraines

Many chronic headaches are caused by jaw and muscle problems. Our specialists find the connection others miss and provide lasting relief.

Sleep Apnea & Snoring

AASM-accredited sleep clinic offering comfortable oral appliance alternatives to CPAP.

Nerve & Muscle Pain

Trigeminal neuralgia, myofascial pain, and other facial nerve and muscle conditions.

Bruxism (Teeth Grinding)

Custom oral appliances and Botox treatment to stop grinding and protect your teeth.
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At South Bay TMJ

Advanced treatment modalities, all conservative and non-surgical

― Our Philosophy

Conservative care, advanced tools.

We offer a full range of non-surgical treatments tailored to your specific diagnosis. Our approach prioritizes the least invasive option that produces lasting results.

― Our Specialists

Meet our board-certified team.

Diplomates of the American Board of Orofacial Pain. UCLA School of Dentistry faculty. Decades of combined experience treating the most complex orofacial pain cases.

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Meet

Dr. Paul Grin

DDS, MPH, MS, APC

Board-Certified Pain Care Specialist

Orofacial pain specialist with over 32 years of experience. Diplomate of the American Board of Orofacial Pain. Fellow of the American Academy of Orofacial Pain and the American Headache Society. Assistant Professor at UCLA School of Dentistry. One of the few specialists in the LA area performing PRP and regenerative therapies for TMJ.
A man wearing a white lab coat, checked shirt, and blue tie stands in front of a modern building with large windows and greenery visible outside.
Meet

Dr. Eric Grin

Board-Certified Pain Care Specialist

Board-certified orofacial pain specialist and Diplomate of the American Board of Orofacial Pain. Completed orofacial pain residency at UCLA. MS in Medical Physiology from Case Western Reserve University. Clinical faculty at UCLA, teaching predoctoral dental students and residents. Clinical focus on interventional pain therapies including PRP, Botox, and nerve blocks.
― Why Choose Us

What sets our practice apart.

Six commitments that define how we care for every patient who walks through our doors.

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01

One patient at a time

We never double-book. Your appointment is yours alone, with the full undivided attention of your specialist.

02

45 to 60 minute evaluations

We take the time needed for an accurate diagnosis, not a rushed assessment that misses the real cause.
03

Conservative, non-surgical care

Reversible treatments first. Surgery is always a last resort, considered only when other options have been thoroughly explored.
04

Advanced diagnostic technology

Low-radiation CT imaging, neurosensory testing, ultrasound-guided procedures, and electromyography.
05

Regenerative medicine

PRP, prolotherapy, and exosome therapy for complex cases that need actual tissue healing, not just symptom management.
06

Coordinated team approach

We work with neurologists, physical therapists, and other specialists to address every aspect of your condition.
― Patient Stories ―

Real patients. Real relief.

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I had a very complex TMJ issue and Dr. Paul Grin put me at ease immediately with his demeanor, knowledge and prognosis. He is very patient in explaining the issues and answers all questions in layman’s terms. He tried a few options to alleviate my pain and ultimately it was determined that a pharmaceutical strategy would be most effective. I’m extremely pleased with the results and can now chew without pain. I highly recommend Dr. Grin’s services. His staff is also very friendly and responsive.

Dean Bender

TMJ & Chronic Headaches

I couldn’t tolerate my CPAP machine despite trying for months. Dr. Grin fitted me with a custom oral appliance and a follow-up sleep study confirmed it works. I sleep through the night and feel like myself again.

Robert T.

Sleep Apnea / CPAP Alternative
As someone with EDS, finding a TMJ specialist who actually understood my condition was life-changing. Dr. Grin used a conservative approach that protected my jaw and the prolotherapy has made a real difference.

Sarah L.

EDS & TMJ Disorder
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― Where to find us

Located in Torrance serving the South Bay.

Address
Hours
Monday – Tuesday
9:00 AM – 5:00 PM
Wednesday
9:00 AM – 5:00 PM
Thursday
9:00 AM – 5:00 PM
Friday
9:00 AM – 5:00 PM
Service Area
South Bay

Torrance, Manhattan Beach, Redondo Beach, Palos Verdes, San Pedro, Long Beach

― Schedule Your Consultation

Ready to Find Relief?

Schedule your evaluation with our board-certified orofacial pain specialists and start your path to lasting recovery.

We accept Medicare and most major insurance plans.

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