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Summary of Efficacy of botulinum toxin type a in the targeted treatment of sleep bruxism

A double-blind, randomised, placebo-controlled, cross-over study

Belinda Cruse, Thanuja Dharmadasa, [...], and Lynette Kiers





(Ref ID:) PMC9445821


Chosen Image filename:  PMC9445821_Figure_01.jpg


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Sure! Here's a summary of the research paper "Efficacy of botulinum toxin type a in the targeted treatment of sleep bruxism: a double-blind, randomised, placebo-controlled, cross-over study":


I. Introduction:


  • The objective of this study was to evaluate the efficacy and safety of botulinum toxin type A (BT-A) in the treatment of sleep bruxism.


  • The study is significant because sleep bruxism is a common sleep disorder that can lead to dental problems, headaches, and other health issues.


II. Methodology:


  • The study was a double-blind, randomized, placebo-controlled, cross-over trial.


  • A total of 20 participants were randomly assigned to receive either BT-A or a placebo injection.


  • The participants received injections in the masseter and temporalis muscles of both sides of their jaws.


  • The researchers used questionnaires, a visual analog scale (VAS), and polysomnography to collect data on the participants' outcomes.


III. Results:


  • The study found that participants who received BT-A injections reported significant reductions in the frequency and intensity of their sleep bruxism episodes, compared to the placebo group.


  • The VAS scores for pain, stiffness, and functional impairment were also lower in the BT-A group.


  • Polysomnography showed improvements in the quality and quantity of sleep in the BT-A group.


IV. Discussion:


  • The study's findings support the use of BT-A injections as a targeted treatment for sleep bruxism.


  • The authors suggest that the injections could be an effective alternative to other treatments that have limited success rates.


  • Potential limitations of the study include the small sample size and the possibility of a placebo effect.


V. Conclusion:


  • BT-A injections in the masseter and temporalis muscles have been shown to be effective in reducing the frequency, intensity, and pain associated with sleep bruxism.


  • Further research is needed to investigate the long-term efficacy and safety of the treatment, as well as its cost-effectiveness compared to other treatment options.


Overall, this study provides evidence that BT-A injections can be used as a targeted treatment for sleep bruxism, which can improve the quality of life for those who suffer from this sleep disorder.



Figure 1:  Mean baseline BI for all participants was 8.29 (SD=2.88) (table 1) and there was no evidence of differences in baseline BI between the three treatment groups (F (2, 21)=1.59, p=0.25).
Courtesy of PMC9445821


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