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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Background: At present, the demand for orthodontic treatment is on the rise. On the other hand, evidence shows that the bond strength of composite resins to old composite restorations is often unreliable. Therefore, the aim of this in vitro study was to assess the effect of different surface treatments on shear bond strength (SBS) of ceramic brackets to old composite restorations. Methods: In this in vitro experimental study, 60 nano-hybrid composite discs were fabricated. For aging, the discs were incubated in deionized water at 37 °C for 1 month. Next, they underwent 4 different surface treatments namely acid etching with 37% phosphoric acid, sandblasting, grinding, and Er,Cr:YSGG laser irradiation. Ceramic brackets were then bonded to the discs and underwent SBS testing. Results: The maximum mean SBS value was obtained in the grinding group (9.16 ± 2.49 MPa), followed by the sandblasting (8.13 ± 2.58 MPa) and laser (6.57 ± 1.45 MPa) groups. The minimum mean SBS value was noted in the control group (5.07 ± 2.14 MPa). Conclusion: All groups except for the control group showed clinically acceptable SBS. Therefore, grinding, sandblasting, and Er,Cr:YSGG laser are suggested as effective surface treatments for bonding of ceramic orthodontic brackets to aged composite.
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참고문헌 (26)
참고문헌 신청
Bayram M / 2011 / Shear bond strength of orthodontic brackets to aged resin composite surfaces : effect of surface conditioning / Eur J Orthod 33:174~179
Kaya Y / 2019 / Comparison of the shear bond strength of metal orthodontic brackets bonded to long-term water-aged and fresh porcelain and composite surfaces / Turk J Orthod 32:28
Padipatvuthikul P / 2007 / Bonding of composite to water aged composite with surface treatments / Dent Mater 23:519~525
Hammad SM / 2013 / Effects of cyclic loading on the shear bond strength of metal orthodontic brackets bonded to resin composite veneer surface using different conditioning protocols / Prog Orthod 14:14
Viwattanatipa N / 2010 / The effect of different surface preparation techniques on the survival probabilities of orthodontic brackets bonded to nanofill composite resin / J Orthod 37:162~173
Kaya Y / 2019 / Comparison of the shear bond strength of metal orthodontic brackets bonded to long-term water-aged and fresh porcelain and composite surfaces / Turk J Orthod 32:28
Padipatvuthikul P / 2007 / Bonding of composite to water aged composite with surface treatments / Dent Mater 23:519~525
Hammad SM / 2013 / Effects of cyclic loading on the shear bond strength of metal orthodontic brackets bonded to resin composite veneer surface using different conditioning protocols / Prog Orthod 14:14
Viwattanatipa N / 2010 / The effect of different surface preparation techniques on the survival probabilities of orthodontic brackets bonded to nanofill composite resin / J Orthod 37:162~173
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