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Related Experiment Videos

Direct bonding with precoated brackets and self-etching primers.

Ascension Vicente1, Luis A Bravo

  • 1Docent Unit of Orthodontics, Dental Clinic, University of Murcia, Hospital Morales Meseguer, 2a planta, Calle Marqués de los Véllez, s/n, 30008 Murcia, Spain. ascenvi@um.es

American Journal of Dentistry
|August 31, 2006
PubMed
Summary
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The APC Plus precoated bracket system, using either phosphoric acid or Transbond Plus Self Etching Primer (TSEP), demonstrated comparable bond strength to uncoated brackets. However, APC Plus significantly reduced adhesive remnants on teeth post-debonding.

Area of Science:

  • Orthodontic materials science
  • Dental adhesion research

Background:

  • Effective bracket bonding is crucial in orthodontics.
  • Minimizing adhesive remnants after debonding simplifies clinical procedures and improves aesthetics.

Purpose of the Study:

  • To compare the shear bond strength and adhesive remnant of APC Plus precoated brackets.
  • To evaluate enamel conditioning with phosphoric acid versus Transbond Plus Self Etching Primer (TSEP).
  • To compare with uncoated brackets bonded using Transbond XT.

Main Methods:

  • Extracted premolars were divided into three groups: Acid/Transbond XT, Acid/APC Plus, and TSEP/APC Plus.
  • Shear bond strength was assessed using a universal testing machine at a crosshead speed of 1 mm/minute.
  • Adhesive remnant quantification was performed using image analysis equipment.

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Main Results:

  • No statistically significant differences in shear bond strength were observed among the three groups (P > 0.05).
  • APC Plus groups exhibited significantly less adhesive remnant on teeth compared to Transbond XT.
  • The TSEP/APC Plus group showed significantly less adhesive remnant than the Acid/APC Plus group (P < 0.017).

Conclusions:

  • APC Plus precoated brackets offer comparable bond strength to conventional systems.
  • APC Plus, particularly with TSEP conditioning, effectively minimizes adhesive remnants after debonding.
  • This suggests potential benefits for clinical efficiency and patient outcomes.