کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7870253 | 1509187 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photopolymerizable phosphate acrylates as comonomers in dental adhesives with or without triclosan monomer units
ترجمه فارسی عنوان
فسفات آکریلیک فت پلیمریزاسیون به عنوان همکاران در چسب های دندانی با واحدهای مونومر تری کولوزان یا بدون آن
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کلمات کلیدی
فسفات اکریلات، عکسبرداری، مواد دندانی، اثر ضد باکتریایی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
چکیده انگلیسی
Phosphate diacrylates (CO-DAP, TMP-DAP) based on castor oil or trimethylolpropane were synthesized and evaluated in dental adhesive formulations in comparison with 3-acryloyloxy-2-hydroxypropyl methacrylate phosphate (AMP-P). In an attempt to promote antibacterial activity, another photopolymerizable monomer (TCS-UMA) containing 5-chloro-2-(2,4-dichlorophenoxy)phenol moiety (triclosan) was prepared and incorporated in adhesive resins. Each of these monomers had a molecular structure confirmed by spectral methods. The photopolymerization rates for monomers (0.063-0.088 sâ 1) were lower than those determined in the monomer combinations (0.116-0.158 sâ 1) incorporating phosphate diacrylate (11 wt.%), BisGMA (33 wt.%), TEGDMA (10 wt.%), UDMA (10 wt.%) and HEMA (15 wt.%), the degree of conversion varying between 63.4 and 74.5%. The formed copolymers showed high values for water sorption (18.65-57.02 μg/mm3) and water solubility (3.51-13.38 μg/mm3), and the contact angle was dependent on the presence of CO-DAP (θF1: 66.67°), TMP-DAP (θF2: 55.05°) or AMP-P (θF3: 52.90°) in the photocrosslinked specimens compared to the sample without phosphate monomer (θF4: 82.14°). The scanning electron microscopy image of the dentin-resin composite interface after applying our F1 formulation (pH: 4.1) and its light-curing for 20 s supports the evidence of the formation of the hybrid layer with the tooth structure created by self-etching approach, with no gaps or cracks in the adhesive. A comparative analysis of the adhesion achieved with commercial adhesive systems (Single Bond Universal, C-Bond) rather indicates similarities than differences between them. The addition of triclosan methacrylate (1 wt.%) into the formulation inhibited the bacterial growth of the Streptococcus mutans and Escherichia coli in the direct contact area due to the covalently linked antibacterial monomer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 34, 1 January 2014, Pages 176-185
Journal: Materials Science and Engineering: C - Volume 34, 1 January 2014, Pages 176-185
نویسندگان
Violeta Melinte, Tinca Buruiana, Horia Aldea, Simona Matiut, Mihaela Silion, Emil C. Buruiana,