AT Fidelis ER:YAG laser. (DTI/Photo courtesy of Fotona d.d., Slovenia)
Apr 29, 2010 | EUROPE

Study proves higher ablation efficiacy of ER:YAG lasers

by Daniel Zimmermann, DTI

LEIPZIG, Germany: A new study by researchers from the University of Zagreb, Croatia, has found that less total absorbed laser energy in the form of heat remains in teeth when treated with the Er:YAG lasers such as the AT Fidelis from Fotona, a Slovenian based manufacturer of medical laser systems. The authors concluded that the results, at least partially, explain the observed higher ablation efficacy of Er:YAG (erbium: yttrium, aluminium, garnet) lasers compared to Er,Cr:YSGG (erbium, chromium:yttrium, scandium, gallium, garnet ) lasers.

The report follows previous studies that examined the use of laser profilometry for the characterisation of craters produced in hard dental tissue by Er:YAG and Er,Cr:YSGG lasers, which gave insights into accurately measuring laser drilling speeds. One study revealed that the AT Fidelis’ Er:YAG laser’s ablation rates, which determines drilling speed in volume per second, to be 3.7 times higher in dentine and 5 times higher enamel compared to the Er,Cr:YSGG laser.

Er:YAG lasers such as the AT Fidelis are solid-state lasers who typically emit infrared light. They are being used for wide range of medical and dental applications including the cutting of bone in oral surgery.

back to overview Send to a friend Print this site