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  • Writer's pictureRaymond G. Lee

The Power of CO2 Lasers in Modern Dentistry: A Comprehensive Guide

Today, I'd like to discuss the significance of CO2 lasers in dentistry. These lasers are prized for their ability to enhance patient comfort by simultaneously cutting and sealing tissues. When we juxtapose traditional methods with CO2 laser techniques, a notable difference emerges. For instance, there's a necrotic layer in traditional methods, which is essentially dead tissue leading to discomfort and inflammation. In contrast, the CO2 laser delves deeper without leaving behind this problematic layer, offering a less invasive approach.

Opelaser Pro II

Diving deeper, let's contrast the CO2 laser with other prevalent lasers, namely diode, Er:Yag, and Nd:Yag. An image depicting penetration depth reveals that CO2 and Er:Yag lasers, being water-absorbing types, have a minimal penetration of 0.02 to 0.5 millimeters. On the other hand, diode and Nd:Yag lasers can penetrate up to 2 millimeters. A notable drawback of diode lasers is their limited impact on soft tissues, resulting in significant thermal damage. In tasks like subepithelial ablation, incisions, and excisions, CO2 lasers outshine diode lasers in efficiency. While diode lasers excel in coagulation, they falter in cutting. Interestingly, CO2 lasers master both. A point to consider: while diode lasers are affordable initially, their maintenance, especially the disposable tips, can be costly.


Er:Yag lasers are often dubbed the ultimate lasers due to their adaptability in treating both hard and soft tissues. They excel in eliminating impurities from soft tissues and bones. Nd:Yag lasers, too, are adept at cleansing the hard coatings on implant fixtures. While CO2 lasers might not be ideal for certain implant stages, they're invaluable in addressing peri-implantitis. Er:Yag lasers, despite their versatility, are slower and less efficient, especially when it comes to coagulation and treatments like curettages. In efficiency metrics, CO2 lasers are 5 to 15 times superior to Er:Yag lasers. Nd:Yag lasers, on the other hand, are perfect for specific tasks like sulcular debridement. A primary contributor to periodontal disease is contamination in the subgingival pocket. The CO2 laser's fiber, with its 200-micron thickness, can penetrate these pockets and deliver optimal results. Nd:Yag lasers can cleanse the sulcus's inner epithelium, promoting tissue reattachment to the bone. However, in terms of speed and overall efficiency, they don't match up to Er:Yag lasers.


To sum it up, as evident from the provided data, CO2 lasers offer a plethora of benefits in dental applications. I appreciate your patience in reading this, and I trust you found it enlightening. Should you have further queries, please don't hesitate to reach out.


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