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3D Printing Pen: A Novel Adjunct for Indirect Bonding.

Narayan Bhalchandra Kulkarni1, Shrishtee Manoj Goyal2, Vinaykumar Dinesh Shah3

  • 1KM Shah Dental College and Hospital, Vadodara, Gujarat, India.

The Journal of Contemporary Dental Practice
|November 10, 2021
PubMed
Summary

This study introduces a 3D printed polylactic acid (PLA) transfer tray for indirect orthodontic bracket bonding. This method is precise, economical, and significantly reduces chairside time compared to traditional techniques.

Keywords:
3D printingBondingIndirect bonding Polylactic acid (PLA).

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Area of Science:

  • Orthodontics
  • Biomaterials
  • 3D Printing Technology

Background:

  • Direct orthodontic bracket bonding is time-consuming.
  • Indirect bonding can suffer from incomplete light curing through transfer trays, leading to bond failure.
  • Minimizing chairside time is a key clinical objective.

Purpose of the Study:

  • To evaluate a novel method for indirect orthodontic bracket bonding using 3D printed polylactic acid (PLA) transfer trays.
  • To assess the efficacy of this technique in reducing chairside time while ensuring bond accuracy and light penetration.

Main Methods:

  • Dental impressions were taken, and casts were prepared for bracket placement according to the MBT prescription.
  • Brackets were stabilized on the working model using a bonding agent.
  • Transfer trays were fabricated using a 3D printing pen and PLA filament.
  • The fabricated tray with secured brackets was transferred to the oral cavity for curing.

Main Results:

  • The 3D printed PLA transfer trays were precisely fabricated, holding brackets in the desired position.
  • The trays fit snugly, allowing adequate light penetration for composite curing and flash removal.
  • This indirect bonding method significantly reduced the overall procedure time.

Conclusions:

  • Fabricating indirect bonding transfer trays with PLA and a 3D printing pen is a precise, user-friendly, economical, and reliable technique.
  • This method effectively minimizes chairside time in orthodontic bracket bonding.
  • The PLA transfer trays offer advantages in bracket positioning, light curing, and flash removal compared to other indirect bonding methods.