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OrthoFX’s FXClear Aligners vs. Invisalign: Study Reveals Key Findings

A new clinical study has highlighted significant advantages of OrthoFX’s FXClear aligners over the renowned Invisalign aligner system. Conducted across three private orthodontic practices, this retrospective analysis assesses the treatment effectiveness of FXClear aligners as compared to Invisalign, demonstrating notable efficiency and predictability for orthodontic treatment.

Study Overview

Titled "Treatment Effectiveness of FXClear Aligner: A Comparison Clinical Study," the research surveyed 111 orthodontic cases split between 54 FXClear and 57 Invisalign treatments. The patients presented comparable baseline malocclusion severity, with similar Discrepancy Index scores (13.20 for FXClear vs. 14.70 for Invisalign). With protocols meticulously standardized—both sets of treatments utilized identical 7-day aligner change schedules by the same orthodontist—this study ensures a reliable comparison of outcomes.

Key Findings

1. Reduced Treatment Duration

The findings reveal that FXClear cases achieved an average completion time of 17.3 months, a stark contrast to the 23.0 months for Invisalign. This translates to a 25% reduction in treatment time, enhancing the efficiency of orthodontic practice with shorter patient timelines (p=.005).

2. Fewer Aligners Used

Patients using FXClear required, on average, 49 aligners, compared to 82 aligners for Invisalign—a noteworthy reduction of about 40% (p<.001). This not only streamlines the treatment plan but may also improve patient compliance due to fewer aligner changes overall.

3. Less Frequent Visits

The study highlighted that FXClear patients had an average of 12.6 visits, significantly fewer than the 15.4 visits required for Invisalign patients (p=.001). Particularly, the number of virtual monitoring visits plummeted from 5.5 for Invisalign to just 2.3 for FXClear (p<.001), indicating smoother treatment management with FXClear.

4. Greater Precision in Treatment

An essential aspect of the study was the geometric comparison of treatment outcomes. The FXClear aligners exhibited lower deviations from expected results in both upper and lower arch alignments, indicating a higher fidelity of planned versus actual outcomes. For instance, while 27–28% of Invisalign cases fell within a tolerance of ±0.5mm, 39–43% of FXClear cases met this threshold, demonstrating significantly better treatment precision (p=.0001, p=.0005).

5. Comparable Finishing Quality

Despite the efficiency gains, the finishing quality remained consistently high across both systems, as evidenced by modified American Board of Orthodontics objective grading, which yielded similar results for both approaches (n=10).

Clinical Significance

Among the study’s critical observations, FXClear's predictability in results stood out. The research indicated that Invisalign treatment sometimes resulted in unintended deviations—deviations as large as 1.0mm that could lead to complications such as posterior open bites. Conversely, FXClear cases tended to maintain lesser deviations of less than 0.5mm, showcasing superior treatment reliability.

Implications for Orthodontists and Patients

The implications of this study present an opportunity for both orthodontic practitioners and patients. For orthodontists, the reduced number of aligners and expedited treatment timelines can lead to enhanced operational efficiency. Patients, on the other hand, may benefit from quicker results, fewer appointments, and elevated treatment predictability, potentially leading to a more positive overall experience.

Conclusion and Perspectives

Sheila Tan, Chief Commercial Officer at OrthoFX, commented that these preliminary results reinforce feedback from orthodontic partners who have recognized the smoother workflow and patient satisfaction associated with FXClear aligners. They emphasize that the research supports FXClear as a next-generation aligner option, rooted in innovative technology that advances orthodontic care standards.

As the study progresses towards publication in a leading orthodontic journal, it promises to contribute further to the body of knowledge surrounding clear aligner treatments and their effectiveness in contemporary orthodontic practice.