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Inadequate shear bond strengths of self-etch, self-adhesive systems for secure orthodontic bonding

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Date
2012-11-01T00:00:00Z
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Isman, Eren
Karaarslan, Emine Sirin
Oksayan, Ridvan
Tuncdemir, Ali Riza
Usumez, Serdar
ADANIR, NEJDET
Cebe, Mehmet Ata
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Abstract
This study evaluated the shear bond strength (SBS) of a traditional orthodontic bracket bonding agent (Transbond XT) against two self-etch, self-adhesive systems (Maxcem Elite and Vertise Flow). Sixty premolar teeth and sixty brackets were randomly and equally divided into five groups: Transbond XT (TXT) as the control, Maxcem Elite (ME) without etching, ME with etching (ME/Etch), Vertise Flow (VF) without etching, and VF with etching (VF/Etch). Respective SBS results of the five groups were 9.86 +/- 3.20, 4.67 +/- 2.94, 7.82 +/- 2.56, 2.55 +/- 0.77, and 7.89 +/- 1.17 MPa. SBS values of the new self-etch adhesive systems were significantly lower than the traditional etch-and-rinse control (p0.005). After debonding, ARI scores -0- and -1- were predominant in non-etched ME and VF groups. It was concluded that new self-etch, self-adhesive bonding systems require additional phosphoric acid application to achieve comparable SBS values as the traditional orthodontic bonding agent.
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shear bond strength
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Isman E., Karaarslan E. S. , Oksayan R., Tuncdemir A. R. , Usumez S., ADANIR N., Cebe M. A. , -Inadequate shear bond strengths of self-etch, self-adhesive systems for secure orthodontic bonding-, DENTAL MATERIALS JOURNAL, cilt.31, ss.947-953, 2012
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