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

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Isman E., Karaarslan E. S., Oksayan R., Tuncdemir A. R., Usumez S., ADANIR N., ...More

DENTAL MATERIALS JOURNAL, vol.31, no.6, pp.947-953, 2012 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 6
  • Publication Date: 2012
  • Doi Number: 10.4012/dmj.2012-103
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.947-953
  • Bezmialem Vakıf University Affiliated: Yes


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 (p<0.005). However, no significant differences were found between TXT and the self-adhesives applied with etching (p>0.005). 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.