Laser therapy has moved from cutting-edge to standard-of-care in many progressive chiropractic and rehabilitation clinics. Class IV laser therapy — the most powerful category available in clinical use — is a versatile tool for treating a wide range of musculoskeletal conditions in patients across Oakville, Mississauga, and Burlington. Here's a straightforward explanation of what it does and when it helps.
What is Class IV laser therapy?
Laser therapy (also called photobiomodulation, or PBM) uses specific wavelengths of light energy to stimulate cellular processes in tissue. Class IV lasers are the highest therapeutic class — powerful enough to penetrate deep into muscle, tendon, joint, and bone tissue where lower-power lasers can't reach.
The light energy is absorbed by cells in the treated area and triggers several beneficial effects:
- Increased cellular energy production (ATP)
- Reduction in inflammatory markers
- Improved circulation and lymphatic drainage
- Stimulation of tissue repair and regeneration
- Modulation of pain signaling
The result is faster healing, less inflammation, and less pain — without medication or side effects.
What conditions does Class IV laser therapy treat?
Musculoskeletal pain and injuries:
- Back pain and neck pain
- Sciatica and radiating pain
- Muscle strains and ligament sprains
- Post-surgical recovery
- Sports injuries
Tendon and soft tissue conditions:
- Tennis and golfer's elbow
- Rotator cuff injuries and tendinopathies
- Plantar fasciitis
- Achilles tendinopathy
- IT band syndrome
Joint and arthritis conditions:
- Osteoarthritis of the knee, hip, shoulder
- Frozen shoulder
- TMJ dysfunction
- Carpal tunnel syndrome
Chronic pain:
- Myofascial pain syndrome
- Fibromyalgia (some presentations)
- Chronic tension patterns
Recovery and performance:
- Recovery between training sessions for athletes
- Post-MVA soft tissue healing
- Post-operative rehabilitation
What a laser therapy session is like
Sessions are short — typically 5-15 minutes. The clinician moves the laser handpiece over the treatment area in a specific pattern, and you'll feel a gentle warmth. There's no pain and no downtime.
You'll wear protective eyewear during treatment. That's the only prep needed.
How many sessions do you need?
- Acute injuries: 4-8 sessions over 2-3 weeks
- Chronic conditions: 8-12+ sessions over 4-6 weeks
- Athletic recovery/maintenance: Weekly or as-needed
Many patients notice improvement within the first 2-3 sessions.
What makes Class IV different from Class III (cold) lasers?
Class III (also called "low-level laser" or LLLT) has lower power output. It works — but the depth of tissue it can effectively reach is more limited. Class IV lasers deliver more energy to deeper tissues, meaning better results for conditions involving deeper structures (like hip joints, deep muscle strains, or thick tendons) and shorter treatment times for the same benefit.
Is it safe?
Yes — when properly applied by a trained clinician. Precautions include:
- Not used over the eyes (protective eyewear worn)
- Not used over pregnant abdomen
- Not used directly over active malignancy
- Caution with photosensitive medications
- Not used over pacemakers or certain implants
Your clinician will screen for these before starting treatment.
Frequently asked questions
Does it hurt?
No — most patients feel a gentle warmth. Some feel nothing at all.
Are there side effects?
Very rare. Some patients report mild soreness after the first session; this typically resolves quickly.
How much does laser therapy cost?
Typically $40-$80 per session in the GTA, often bundled with chiropractic or acupuncture treatment.
Is it covered by insurance?
Coverage varies by plan. Some extended health plans cover it as part of chiropractic or physiotherapy visits.
Can it replace surgery?
For some conditions, yes — laser therapy can help patients avoid surgery when conservative care is a reasonable alternative. But it's not a magic bullet, and severe structural issues may still require surgical management.
How does it compare to shockwave?
Different tools for overlapping conditions. Laser is more comfortable, works well for inflammatory pain and healing acceleration. Shockwave is more intense but excels for chronic degenerative tendon problems. Many patients benefit from both.
Class IV laser at THE WAY Chiro
Class IV laser therapy is one of the modalities Dr. Whyte uses regularly at THE WAY Chiro, integrated into treatment plans for patients across Oakville, Mississauga, and Burlington. Whether you're recovering from a specific injury or managing a chronic condition, laser therapy is often part of the toolkit that gets you there faster.