Shear bond strength of orthodontic brackets bonded with resin coating material

Abstract

The purpose of this study was to determine whether a system using a resin coating material (PRG Barrier Coat) with anticariogenic ability can effectively bond orthodontic brackets to human teeth. Resin-modified glass-ionomer cement system (Fuji Ortho LC, group 1) and resin composite cement systems (BeautyOrtho Bond) combined with a self-etching primer (group 2), with the resin coating material (group 3), and with the resin coating material after an organic acid etching agent (group 4) were used for bracket bonding. The mean shear bond strength (SBS) was significantly higher in group 1 than in groups 2, 3 and 4. Groups 2 and 4 exhibited a significantly higher mean SBS than group 3. The resin composite cement system combined with the resin coating material after the organic acid etching agent can serve as an alternative for orthodontic bracket bonding.

Resistência ao cisalhamento de um adesivo ortodôntico com liberação de flúor e mudança de cor: um estudo in vitro

“…These lesions may compromise the final aesthetic result after the fixed orthodontic appliance removal (Sonesson et al, 2020;Khoroushi & Kachuie, 2017). The protective effects obtained through orthodontic adhesives with fluoride release capacity were confirmed by in vivo (Pascotto et al 2004) and in vitro (Raji et al, 2014;Nascimento at al., 2016;Kobayashi et al, 2021) studies. The fluoride ions release also allows remineralization of the enamel attacked by phosphoric acid by the formation of fluorapatite (Kimura et al, 2004).…”