coreRibbondFractured teeth are always a challenge to the dentist. The root canal therapy today can retain even very badly broken teeth. One of the most accepted techniques involve restoration of extensively carious or badly fractured teeth by the fabrication of a post and core while utilizing the...
Since one-third of persons suffer a dental trauma, treatment of anterior teeth using post and core (PC) is becoming important. In teeth with extensive destruction, cast PC (CPC) remain the "gold standard", even though they lead to aesthetic impairment and have a mismatching elastic modulus to...
Specimens were divided into four groups depending on the post–core ratio: (A) 2/1 (control); (B) 3/2; (C) 1/1 (small diameter); (D) 1/1(large diameter) and submitted to 1,200,000 cycles using a chewing simulator (Willytech). Immediately afterwards, all specimens that survived ...
where Λ is the grating period, neff is the effective RI of the fibre core, λB is the so-called Bragg wavelength. When the FBG sensor is exposed to external influences, take temperature T (Fig. 2(b)) and strain ε (Fig. 2(c)) as examples, the response to the temperature variation...
and theTgof the polymer will be of the order of 125–140 °C. If necessary, the pultruded component would then be post-cured for a certain time depending on the temperature used at post-cure; however, this operation is not usually undertaken. A hot curing polymer is used in the ...
core material fibre post flexural strength loading DOI: 10.1111/j.1600-0722.2010.00721.x 被引量: 18 年份: 2010 收藏 引用 批量引用 报错 分享 全部来源 求助全文 Nature Wiley Ingenta dx.doi.org Europe PMC 查看更多 相似文献 参考文献 引证文献...
摘要: We review the recent progress on hollow-core photonic crystal fibers and its integrated form of photonic microcells in both their design and fabrication and in their applications in Raman fibre lasers.会议名称: Specialty Optical Fibers
Post normalisation, less than one-third of the mitochondrial proteins we had observed to have a greater abundance in type I fibre pools remained differentially expressed (compare Fig. 2c—bottom panel, Supplementary Data 2-Tabs 6, 7, with Fig. 2c—top panel, Supplementary Data 1-Tab 7). ...
Mechanical failures by means of fractures occurring anywhere along the length of the post-core complex were the major cause of lack of success. Significantly higher failure rates were observed to occur in partially dentate patients, in those with parafunctional habits and also amongst anterior teeth...
The first method was developed by the Massachusetts Institute of Technology: this technique combines both dry and wet processes. Here, low temperature was used to remove the bulk matrix and some contaminants, followed by thermal posttreatment through vacuum pyrolysis to eliminate any remaining resin....