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Related Experiment Videos

Self-etching bonding systems: in-vitro micro-leakage evaluation.

P D Brandt1, F A de Wet, I C du Preez

  • 1Division of Dental Materials, School of Dentistry, University of Pretoria, PO Box 1266, Pretoria. pbrandt@medic.up.ac.za

SADJ : Journal of the South African Dental Association = Tydskrif Van Die Suid-Afrikaanse Tandheelkundige Vereniging
|September 19, 2006
PubMed
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This study compared micro-leakage in dental bonding agents. Clearfil SE Bond and ABF (Protect Bond) showed comparable low micro-leakage to the control, suggesting they are viable clinical alternatives.

Area of Science:

  • Dental Materials Science
  • Adhesive Dentistry

Background:

  • Micro-leakage is a critical factor in the longevity of dental restorations.
  • Self-etching bonding agents offer simplified clinical application compared to total-etch systems.
  • Evaluating micro-leakage is essential for assessing the clinical performance of new bonding agents.

Purpose of the Study:

  • To compare the in vitro micro-leakage of six self-etching bonding agents against a total-etch control.
  • To determine the efficacy of different self-etching bonding agents at enamel and dentine margins.

Main Methods:

  • Seven groups of human third molars were prepared and restored with different bonding agents and composite resin.
  • Restored teeth underwent thermocycling and immersion in basic Fuchsin dye.
  • Micro-leakage was evaluated at occlusal enamel and cervical dentine margins using light microscopy.

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Main Results:

  • Clearfil SE Bond and ABF (Protect Bond) exhibited micro-leakage values comparable to the control (Scotchbond Multipurpose Plus).
  • The other self-etching bonding agents demonstrated significantly higher micro-leakage.
  • No significant difference was found in micro-leakage between enamel and dentine margins for the best-performing agents.

Conclusions:

  • Clearfil SE Bond and ABF (Protect Bond) are clinically acceptable alternatives to Scotchbond Multipurpose Plus regarding micro-leakage.
  • The selection of appropriate self-etching bonding agents is crucial for minimizing micro-leakage and ensuring restoration success.
  • Further clinical studies are warranted to confirm these in vitro findings.