Original Article
Ikram M. M. Ali1,
Nadir S.E. Osman2, Elhadi M. Awooda3
1Alfajr College for Science and Technology, Khartoum, Sudan
2Institute of laser-Sudan University of Science and Technology,
Khartoum, Sudan
3Napata College, Khartoum, Sudan
Corresponding author:
Ikram
Mohammed. M. Ali, Alfajr College for Science and Technology, Khartoum,
Sudan
Abstract
Background: Dentine Hypersensitivity (DH) is defined as a short, sharp pain
arising from exposed dentine in response to stimuli typically thermal,
evaporative, tactile, or osmotic.
Objectives: The study aimed
to evaluate and comparethe clinical efficacy of low and high output power of a
980 nm diode laser in the treatment of DH.
Materials and Methods: Twelve teeth
with DH were randomly divided into two groups: group A, treated with a high
-power diode laser of 1W, and group B, treated with a low-power laser of 500
mW. Sensitive teeth from both groups were subjected to one laser irradiation
session using a 980 nm diode laser for duration of 60 seconds. Dentine
hypersensitivity was assessed by tactile and thermal stimuli and measured by a
visual analog scale (VAS): before treatment, 15 minutes post operatively and
one week later. Comparison between different variables by t-Test with the level
of significant set at p value of ˂0.05.
Results:
The obtained results for both groups, (before versus after 15 minute of laser
sessions) showed a significant reduction in VAS scores (p-value
< 0.05). The intergroup comparison showed that the reduction in VAS scores
was significantly higher in group A. However, when comparing the VAS scores
after 15 minutes versus after one week, the mean reduction decreased in the two
groups.
Conclusion: A
980 nm diode laser with a high output power of 1W can be used effectively to
provide immediate relief in severe cases of DH and is still better after one
week.
Key words:
Diode laser, Dentine hypersensitivity, Visual analog scale
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