کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1423491 986549 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of potential lubricants for in vitro wear testing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Analysis of potential lubricants for in vitro wear testing
چکیده انگلیسی

SummaryObjectivesA critical testing aspect for a reliable two-body wear simulation may be the lubricity condition. The main hypothesis tested in this study was that, over the experiment duration, the presence or absence of lubricants would provide to a composite similar wear rates to those observed under human saliva lubrication.MethodsSeventy specimens, fabricated from a minifill composite, were tested in a programmable logic controlled wear simulator with human saliva (HS), mucin-based artificial saliva (MC), carboxymethylcellulose-containing saliva (CM), deionized water (DW) or with no lubrication (UN). Wear depth was quantified at the end of 1000, 5000, 10,000 and 50,000 cycles and at each 50,000 through 250,000 cycles.ResultsOver all the test period, UN led to the greatest wear. Initially, lubrication resulted in no significant differences among the wear rates. Subsequently, up to 50,000 cycles, depths of wear provided by HS and MC were still similar, being the lowest, whereas DW yielded greater wear than CM. Later, interposition of CM and HS resulted in equivalent wear. At 250,000 cycles, wear of the composite ranked as follows: MC

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dental Materials - Volume 22, Issue 1, January 2006, Pages 77–83
نویسندگان
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