Influence of Curing Mode on the Surface Energy and Sorption/Solubility of Dental Self-Adhesive Resin Cements

Materials

Rafat Bagheri¹  Young Kyung Kim²  Tae-Yub Kwon³  Hyun-Jin Kim⁴  Jun Sik Son⁵ 

[1] Dental Materials Department and Biomaterials Research Centre, Shiraz University of Medical Sciences, Shiraz 7183643111, Iran;Department of Conservative Dentistry, School of Dentistry, Kyungpook National University, Daegu 41940, Korea;Department of Dental Biomaterials, School of Dentistry, Kyungpook National University, Daegu 41940, Korea;Department of Dental Science, Graduate School, Kyungpook National University, Daegu 41940, Korea;Korea Textile Development Institute, Daegu 41842, Korea;

关键词: polymerization;    self-adhesive resin cement;    solubility;    sorption;    surface energy;   

DOI  :  10.3390/ma10020129

来源: DOAJ

【 摘 要 】

This study investigated the influence of curing mode (dual- or self-cure) on the surface energy and sorption/solubility of four self-adhesive resin cements (SARCs) and one conventional resin cement. The degree of conversion (DC) and surface energy parameters including degree of hydrophilicity (DH) were determined using Fourier transform infrared spectroscopy and contact angle measurements, respectively (n = 5). Sorption and solubility were assessed by mass gain or loss after storage in distilled water or lactic acid for 60 days (n = 5). A linear regression model was used to correlate between the results (%DC vs. DH and %DC/DH vs. sorption/solubility). For all materials, the dual-curing consistently produced significantly higher %DC values than the self-curing (p < 0.05). Significant negative linear regressions were established between the %DC and DH in both curing modes (p < 0.05). Overall, the SARCs showed higher sorption/solubility values, in particular when immersed in lactic acid, than the conventional resin cement. Linear regression revealed that %DC and DH were negatively and positively correlated with the sorption/solubility values, respectively. Dual-curing of SARCs seems to lower the sorption and/or solubility in comparison with self-curing by increased %DC and occasionally decreased hydrophilicity.

【 授权许可】

Unknown