Related Experiment Videos
Self-etching primers--an alternative to the conventional acid etch technique?
U B Fritz1, P Diedrich, W J Finger
1Department of Orthodontics, University of Aachen, Germany. ulrikefritz@hotmail.de
Summary
This study compared self-etching primers to traditional methods for enamel bonding. Clearfil SE Bond and Clearfil Liner Bond 2V showed comparable effectiveness to phosphoric acid etching.
Area of Science:
- Dental Materials Science
- Adhesive Dentistry
Background:
- Self-etching primers offer a simplified approach to dental restorations.
- Evaluating their enamel bonding efficacy is crucial for clinical application.
Purpose of the Study:
- To compare the enamel bonding capacity of three self-etching primers against two conventional phosphoric acid-etching adhesive systems.
- To determine the shear bond strength of composite cylinders bonded to enamel using these systems.
Main Methods:
- An in vitro study utilizing 60 human incisors.
- Tested self-etching primers: Clearfil SE Bond (SE), Clearfil Liner Bond 2V (CLB), Novabond (NOVA).
- Controls: Gluma Comfort Bond (GLU), Kurasper F (KU) with phosphoric acid etching.
Main Results:
- Significant differences in shear bond strength were observed (p < 0.001).
- GLU, KU, CLB, and SE groups achieved a mean shear bond strength of 24 MPa.
- The Novabond system exhibited a significantly lower mean shear bond strength of 17 MPa.
Conclusions:
- Self-etching primers Clearfil Liner Bond 2V (CLB) and Clearfil SE Bond (SE) demonstrate enamel bonding effectiveness comparable to conventional phosphoric acid etching.
- These findings support the use of specific self-etching primers as viable alternatives in restorative dentistry.