13th World Congress for Laser Dentistry
26-28, April 2012
Barcelona, Spain
Meeting Abstract
Sponsors: World
Federation for Laser Dentistry
- Oral
Presentation 5
TITLE: The
influence of power and frequency settings during enamel preparation with Er,Cr:YSGG laser on the pain
perception of patients.
AUTHORS: Borchers R.
SOURCE: Med
Oral Patol Oral Cir Bucal. 2012 May 1;17(Supplement1):S5.
*
doi:10.4317/medoral.17643504
http://dx.doi.org/10.4317/medoral.17643504
Abstract
Introduction: Using Er,Cr:YSGG laser for cavity preparation can
mostly be done without any anesthesia; but sometimes there are patients with a
higher degree of pain sensitivity. For these patients the average parameter settings
of the laser must be modified.
Aim of the study: is to show
that there are different ways to reduce the feeling of pain during enamel
treatment by laser without the need of anesthesia. 10 patients were treated by Er,Cr:YSGG laser (2780 nm )
with power settings 5,5 / 5 W (stand. 6,25 W) and frequencies of 40 / 50 Hz
(stand. 30 Hz). Evaluation of pain during treatment with the different
parameters was done.
Results: Decreasing the power results in a painfree treatment. Side effect: treatment time prolonges. Increasing the frequency also results in a painfree treatment without any effect on the treatment
time.
Discussion: There are two
effective methods to realize a painfree laser
treatment on patients with a higher sensitivity level. Either the power setting
has to be reduced or the frequency has to be increased. A decrease of the power
lowers the amount of ablation at the same time- a prolonged treatment time is
the result. If the frequency is increased there is no change in the total
amount of power but the energy of the single pulse is more
gentle because the energy per pulse has decreased. As result there
is no change in treatment time. So the better option for painfree enamel treatment is increasing the frequency
instead of lowering the power.