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Related Experiment Videos

Are self-ligating brackets' slots dimensions accurate?

Khaled H Attia1, Sherif A Elkordy1, Mohamed ElKoussy1

  • 1Department of Orthodontics and Dentofacial Orthopedics, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt.

International Orthodontics
|October 7, 2018
PubMed
Summary
This summary is machine-generated.

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Actual dimensions of passive self-ligating brackets exceed manufacturer claims, potentially impacting torque expression. This study measured and compared bracket slot dimensions from leading brands.

Area of Science:

  • Orthodontics
  • Biomaterials Science
  • Dental Device Engineering

Background:

  • Passive self-ligating brackets are widely used in orthodontics.
  • Accurate bracket slot dimensions are crucial for predictable treatment outcomes.
  • Discrepancies between claimed and actual dimensions can affect orthodontic mechanics.

Purpose of the Study:

  • To measure and compare the slot's top and base dimensions of three commercial passive self-ligating bracket systems.
  • To evaluate the accuracy of manufacturers' published dimensions against actual measurements.

Main Methods:

  • Digital microscopy was employed to measure the slot dimensions of 40 central incisor brackets from three brands: Carriere SLX, Damon Q, and Smart Clip.
  • Measurements were taken after removing bracket doors.
Keywords:
AccuracySelf-Ligating bracketsSlot dimensions

Related Experiment Videos

  • Actual dimensions were compared with manufacturers' claimed specifications.

    • Main Results:

    • All tested passive self-ligating brackets exhibited significantly larger slot dimensions (top and base) than those published by manufacturers.
    • Carriere SLX showed the least difference in base slot dimensions (.36% increase), while Damon Q showed the greatest (8.1%).
    • Smart Clip demonstrated the largest difference in top slot dimensions (12.8% increase), followed by Damon Q (12.3%).

    Conclusions:

    • Actual measurements of passive self-ligating brackets from the studied manufacturers were consistently larger than published dimensions.
    • These dimensional discrepancies may influence torque expression during orthodontic treatment.
    • Further investigation into the clinical implications of these variations is warranted.