International Journal of Laser Dentistry

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VOLUME 4 , ISSUE 1 ( 2014 ) > List of Articles

RESEARCH ARTICLE

Clinical Evaluation of Middle Power Output 810 nm GaAIAs Diode Laser for Treating Severe Dentin Hypersensitivity: A Randomized Clinical Trial

Ankur Dua, Rakesh Mittal, Meenu G Singla, Ashima Sood, Prabhjot S Sodhi

Citation Information : Dua A, Mittal R, Singla MG, Sood A, Sodhi PS. Clinical Evaluation of Middle Power Output 810 nm GaAIAs Diode Laser for Treating Severe Dentin Hypersensitivity: A Randomized Clinical Trial. Int J Laser Dent 2014; 4 (1):20-25.

DOI: 10.5005/jp-journals-10022-1050

License: CC BY-NC 4.0

Published Online: 01-04-2014

Copyright Statement:  Copyright © 2014; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim: To evaluate the clinical efficacy and longevity of middle power output 810 nm gallium-aluminum-arsenide (GaAlAs) diode laser in the treatment of severe dentin hypersensitivity Materials and methods: Forty patients were selected having severe hypersensitive teeth corresponding to 7 and above on the visual analog scale (VAS). Dentin hypersensitivity (DH) was assessed by tactile and thermal stimuli and measured by VAS. Teeth were randomly divided into two groups — treatment group (treated with GaAlAs diode laser) and control/placebo group (treated with curing light). In the treatment group, the laser used was a 810 nm GaAlAs diode laser, having a power of 0.5 W and for a duration of 2 minutes. Patients from both the groups were subjected to three sessions for treatment of dentin hypersensitivity, at intervals of 0 hours, 24 hours and 48 hours. Dentin hypersensitivity was measured before and after each session and again evaluated after 12 weeks. Results: In both the groups, mean values at 0, 24 and 48 hours showed a significant reduction in VAS scores (p-value < 0.05). Intergroup comparison showed that reduction in VAS scores was significantly more in the laser treated group. However, at 12 weeks evaluation, mean reduction in VAS scores decreased in the treatment group indicating recurrence of hypersensitivity. Conclusion: Within the limitations of this study, it may be concluded that GaAlAs middle power output diode laser is effective in providing immediate relief in severe cases of dentin hypersensitivity although long-term results show recurrence of dentin hypersensitivity.


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