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Title: Shear bond strengths of two new self-etching primers
Authors: Ho, Andy CS
Supervisor: Akyalcin, Sercan (Preventive Dental Science)
Examining Committee: Swain, Vanessa (Restorative Dentistry) Wiltshire, William (Preventive Dental Science)
Graduation Date: October 2010
Keywords: Orthodontics
Issue Date: 25-Jun-2010
Abstract: Purpose: To evaluate the in vitro shear bond strength (SBS) of orthodontic attachments using 2 self-etching primers (SEP): iBOND and G-Bond. Methods: 180 molars were randomly divided into 12 groups. Teeth were bonded with a stainless steel button using Transbond XT composite. The bonding agents were iBOND, G-Bond, Transbond Plus SEP and Transbond XT primer (control). SBS’s immediately, 24hours and 3months were measured with their Adhesive Remnant Index (ARI). Results: Transbond XT primer (11.22MPa) had a significantly higher immediate SBS than Transbond Plus SEP (5.32MPa), iBOND (6.69MPa) and G-Bond (8.30MPa). 24 hours, Transbond XT primer (16.65MPa) and Transbond Plus SEP (13.20MPa) had a significant increase in their SBS. No difference was observed at 3 months. ARI were significantly different between the groups at all time points. Conclusions: iBOND and G-Bond yielded sufficient SBS’s over the three time points that may be sufficient to withstand occlusal and light archwire forces.
Appears in Collection(s):FGS - Electronic Theses & Dissertations (Public)

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