Aim: This systematic review and meta-analysis aimed to study the effects of PowerScope™ for the treatment of class II malocclusions.
Materials and methods: The review protocol was registered in the Prospective Register of Systematic Reviews (PROSPERO) database (www.crd.york.ac.uk/prospero, protocol number: CRD42022309678). A population, intervention, comparison, outcome, and study design (PICOS) criterion was developed to aid the search strategy and determine the eligibility of studies for inclusion in the review. A thorough systematic search of various scientific databases was performed to identify relevant studies. The risk of bias tool and methodological index for nonrandomized studies (MINORS) tool were used to evaluate the risk of bias.
Results: After screening of titles and abstracts, a total of 148 articles were identified. After the removal of duplicates, 82 articles remained. Finally, six studies were selected to be included in the qualitative analysis, and three studies were further included in the quantitative analysis. All of the included studies showed a high risk of bias, and the overall quality of the methodology was determined to be moderate. The quantitative analysis showed no significant difference in the treatment effects between the intervention and control groups.
Conclusion: The qualitative synthesis showed better skeletal changes with the Forsus Fatigue Resistant Device (FRD) appliance, whereas better dentoalveolar changes were seen with the PowerScope™ appliance. However, these results were not supported by results from the quantitative analysis.
Clinical significance: It is necessary to understand the clinical treatment outcomes of PowerScope™ in the management of class II malocclusions to recommend its utilization in contemporary clinical practice.
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