Volume 22 Issue 2
Feb.  2024
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Article Navigation >  Chinese Journal of General Practice  > 2024  >  22(2): 222-224
WANG Tingting, HUANG Yongsong, XU Li, TIAN Ruixue. Analysis of the effect of low level semiconductor laser on the pain of permanent tooth caries mechanical preparation of Class Ⅰ cavities[J]. Chinese Journal of General Practice, 2024, 22(2): 222-224. doi: 10.16766/j.cnki.issn.1674-4152.003370
Citation: WANG Tingting, HUANG Yongsong, XU Li, TIAN Ruixue. Analysis of the effect of low level semiconductor laser on the pain of permanent tooth caries mechanical preparation of Class Ⅰ cavities[J]. Chinese Journal of General Practice, 2024, 22(2): 222-224. doi: 10.16766/j.cnki.issn.1674-4152.003370
shu

Analysis of the effect of low level semiconductor laser on the pain of permanent tooth caries mechanical preparation of Class Ⅰ cavities

doi: 10.16766/j.cnki.issn.1674-4152.003370

  • Department of Stomatology, the First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui 233004, China

Funds:

 KJ2021A0790

 2022105

 2022byzd034

  • Received Date: 2023-06-19
    Available Online: 2024-03-27
    Abstract
  •   Objective  To evaluate the effectiveness of low-level laser therapy (LLLT) in the treatment of pain during mechanical cavity preparation of Class Ⅰ cavities in adult permanent teeth in adult patients with low pain tolerance.  Methods  This study selected adult patients with Class Ⅰ permanent tooth cavities (D2) who visited the Department of Stomatology at the First Affiliated Hospital of Bengbu Medical University from October 2022 to September 2023. Before the treatment, the preliminary test of pain threshold (PTPT) was initially tested by the mechanical removal method, and the pain score was evaluated by the visual analogue scale (VAS) score. Twenty patients with 7 points≤VAS < 10 points, 40 teeth were selected, laser group (20 teeth) and placebo group (20 teeth). The laser group was treated with LLLT before the cavity preparation, and the placebo group was treated with simulated laser irradiation at the same position but the laser was not in working mode. The VAS score was used to evaluate the pain intensity after the cavity preparation, and the VAS scores were compared between the two groups and before and after the treatment.  Results  The VAS score of all subjects in the laser group was lower than that in the placebo group [4.0 (4.0, 4.5) points vs. 6.0 (6.0, 6.8) points, P < 0.001]; Compared with the pain felt during PTPT, the laser group decreased by 42.9% [7.0 (7.0, 8.0) points vs. 4.0 (4.0, 4.5) points, P < 0.001] and the placebo group decreased by 14.3% [7.0 (7.0, 8.0) points vs. 6.0 (6.0, 6.8) points, P < 0.001].  Conclusion  The use of LLLT before cavity mechanical preparation can greatly reduce the pain intensity during permanent tooth treatment.

     

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