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


Creative Commons License

Işman E., Karaarslan E. Ş., Okşayan R., TunçdemIr A. R., Üşümez S., Adanir N., ...More

Dental Materials Journal, vol.31, no.6, pp.947-953, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 6
  • Publication Date: 2012
  • Doi Number: 10.4012/dmj.2012-103
  • Journal Name: Dental Materials Journal
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.947-953
  • Keywords: Orthodontic bracket bonding, Self-adhesive flowable composite, Self-adhesive resin cement, Shear bond strength
  • Hatay Mustafa Kemal University Affiliated: Yes

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 (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.