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FAQ: What Is The Difference Between Class IV And Class III Lasers?

Here at Borja Physical Therapy, our world revolves around our patients’ needs! Our experienced and highly trained team is here to make recovery a reachable goal! We specialize in keeping you active. We empower your decision to heal the natural way, without relying on pain pills, injections or surgery. Learn the difference between class IV and other lasers.

Difference Between Class IV And Class III Lasers

The Difference Between Class IV And Other Lasers

The most significant difference between class IV lasers and other level lasers is the amount of power each can put out. 

Class II and III lasers are considered low power lasers. They have less power and smaller beams compared to class IV lasers. Lower power means there aren’t as many photons going to damaged cells. Because of this, the laser has significantly less of an impact on injured tissue. Consequently, this often leads to disappointing results. Less powerful lasers can still benefit less dense areas of the body but will take much longer to be effective.

Class IV lasers have more power compared to class II and III. They are able to penetrate tissue deeper in the body. They also incorporate delivery systems that effectively treat damaged cells in a way that doesn’t feel uncomfortable. 

Because light has to travel through muscles, bones, and joints, they need enough energy to have any sort of impact. In order to get that higher level of energy, you need more power. More power means more photons going to the area. Class IV lasers are able to deliver an effective amount of photons deep within tissue, where lower class lasers just wouldn’t be able to reach.

Improve With Laser Therapy

Here at Borja PT, we use the Lightforce FXi Class IV Laser. The purpose of laser therapy is to reduce pain and inflammation. Whether you’ve been experiencing pain for just a few days or for a few months. Laser therapy improves the body’s natural healing process through cellular activity. As a result, it helps your body use its own healing powers by starting a series of healing responses.

Click here to learn more about our LightForce Laser service or click here to learn more about who should use laser therapy.

About The Author

Jaime Curl

I've explored various fields within physical therapy including acute care and oncology at Troy Beaumont Hospital and outpatient physical therapy. As the office administrator and marketer, I'm able to combine my love for health and exercise science with my interest in marketing and numbers skills. My hobbies include spending time with friends and family, baking, crafting, and watching my favorite movies or tv shows.

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