Comparison of shear bond strength of traditional 3-step composite with self etch primer and composite.

  • Kashif Haroon Ihsan Mumtaz Hospital, Lahore.
  • Uzma Ijaz Ihsan Mumtaz Hospital, Lahore.
  • Saad Haroon Central Park Medical College, Lahore.
  • Taimoor Khan Frontier Medical & Dental College, Abbottabad.
  • Raheela Yasmin Avicenna Medical & Dental College, Lahore.
  • Rashid Mehmood Shareef Medical & Dental College, Lahore.
Keywords: Conventional 3 Step Primer, Shear Bond Strength, Self Etching Primer (SEP)

Abstract

The revolution in orthodontics has been due to replacement of cemented bands by orthodontic brackets. Acid etching is required to bond a bracket on tooth’s surface. Traditional three step acid etch procedure consisted of etching, sealing/priming and bonding. The self etch system (etchant and primer together) can be used without the need for surface preparation, saving chair side time and minimizing contamination. Objectives: To compare the shear bond strength (SBS) of orthodontic bracket bonded with Conventional etching primer (Transbond XT, 3M Unitek) with self etch primer (Adper Prompt L-Pop, 3M ESPE). Study Design: Prospective study Setting: Orthodontic Clinic of Ihsan Mumtaz Hospital, Lahore and PCSIR (Lahore). Period: 6 months from June 2018 to December 2018. Material and Methods: 60 human maxillary premolars were randomly divided into 2 groups of 30 each. Group-I was bonded with conventional etching primer + composite and Group-II was bonded with self etch primer + composite. Shear bond strength was measured through Ionstron force testing machine. Statistical Analysis: For each variable, shear bond strength, arithmetic mean, standard deviation, minimum and maximum values were calculated. t-test was used to compare the shear bond strength (SBS) of the two groups and P value less than and equal to 0.05 was considered significant. Results: The mean shear bond strength in group 1 and group II was10.5MPa and 7.36MPa respectively. Conclusion: The shear bond strength of Conventional etching primer + adhesive was significantly higher than the shear bond strength of self etch primer +adhesive group.

Author Biographies

Kashif Haroon, Ihsan Mumtaz Hospital, Lahore.

BDS, M Orth RCS ED (UK)

Consultant Orthodontist

 

Uzma Ijaz, Ihsan Mumtaz Hospital, Lahore.

BDS, Fellowship Training in Orthodontics

Associate Orthodontist

Department of Orthodontist

 

Saad Haroon, Central Park Medical College, Lahore.

BDS, M Phil

Assistant Professor

Department of Physiology

 

Taimoor Khan, Frontier Medical & Dental College, Abbottabad.

BDS, M Orth RCS ED (UK)

Assistant Professor

Department of Orthodontist

 

Raheela Yasmin, Avicenna Medical & Dental College, Lahore.

BDS, M Phil

Assistant Professor & HOD

Department of Oral Biology

 

Rashid Mehmood, Shareef Medical & Dental College, Lahore.

BDS, Fellowship Training in Orthodontics

Senior Demonstrator

Department of Orthodontist

 

Published
2019-08-10