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Dentsply Sirona Finland
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What types of lasers
are there?

Various types of lasers are used in dentistry. On the one hand there are large and expensive Er:YAG (specialist for hard tissue applications), Nd:YAG (specialist for bacterial reduction) and CO2 lasers (specialist for surgery) which, due to their design, have less flexible mirror arm systems, complex cooling mechanisms and relatively long start-up times. On the other hand there are compact and more cost-effective diode lasers with a wider range of applications, e.g., for minimally invasive surgery, bacterial reduction in periodontology and endodontics as well as low-level laser therapy.

That's why we at Dentsply Sirona opted for diode lasers from the word go.

Laser in dentistry and their specific indications


Diode laser

SiroLaser Blue  

Diode laser Er:YAG laser Nd:YAG laser CO2 -Laser
Wavelengths 445nm+ 660nm + 970nm 970nm, 940nm, 810nm   2.940nm 1.064nm 10.600 nm
Model type Compact model Compact model Large model Large model Large model
(soft tissue)
Suitable Partially suitable Suitable Unsuitable Suitable
Hemostasis Suitable Suitable Not suitable Suitable Partially suitable
Periodontology Suitable Suitable Partially suitable Suitable Suitable
Endodontics Suitable Suitable Not suitable Suitable Not suitable
Bacterial infections
(herpes, aphthous
Suitable Suitable Partially suitable Suitable Suitable
Soft laser therapy
Suitable Suitable*
Not suitable Not suitable Not suitable
Hard tissue
Not suitable Not suitable Suitable Not suitable Suitable**

* only with corresponding functionality
** 1 laser model available on the market  

Depending on the laser wavelength and the tissue composition, various physical interactions are induced:

Furthermore, with diode lasers one can differentiate between hard and soft lasers.

  • Hard lasers trigger a direct reaction with the tissue through absorption. They are used in surgery for bacterial reduction.
  • Soft lasers do not trigger a direct reaction with the tissue, instead acting at the cellular level deep inside tissues. They are used for pain therapy and photodynamic therapy.

Why should you choose a diode laser?

Get to know how a diode laser works and why you should choose the SiroLaser Blue