發(fā)布時(shí)間：2018-03-08 19:55

  本文選題：車針　切入點(diǎn)：牙釉質(zhì)　出處：《浙江中醫(yī)藥大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：目的研究車針與金屬純鈦、車針與牙釉質(zhì)的高速磨削行為的相互磨削量,分析高速磨削行為的機(jī)理,為口腔修復(fù)及牙體預(yù)備提供可參考的基礎(chǔ)數(shù)據(jù)。方法1.10枚全新的馬尼車針和2mm厚純鈦板在高速磨削臺(tái)上行高速磨削實(shí)驗(yàn),采用電子分析天平測(cè)量磨削前后的車針質(zhì)量損失量,采用激光共聚焦顯微鏡測(cè)量純鈦板的磨削深度,分析兩者磨削量之間的關(guān)系。電鏡觀察實(shí)驗(yàn)后的鈦板磨削口底部和邊緣情況,進(jìn)而分析其磨削機(jī)理。2.制備40個(gè)2mm厚的牙釉質(zhì)片試樣,將40枚全新的馬尼車針和牙釉質(zhì)片分別于高速磨削臺(tái)上行高速磨削實(shí)驗(yàn),采用電子分析天平測(cè)量磨削前后的車針質(zhì)量損失量,采用激光共聚焦顯微鏡測(cè)量牙釉質(zhì)磨削深度,分析兩者磨削量之間的關(guān)系。電鏡觀察實(shí)驗(yàn)后的牙釉質(zhì)磨削口底部和邊緣情況,進(jìn)而分析其磨削機(jī)理。最后對(duì)比分析車針與純鈦、車針與牙釉質(zhì)之間的高速耐磨削性能是否一致。3.統(tǒng)計(jì)學(xué)方法采用SPSS 19.0統(tǒng)計(jì)包進(jìn)行Pearson相關(guān)性分析。結(jié)果1.在高速磨削行為下,車針的質(zhì)量損失量與鈦板的磨削深度呈正相關(guān)關(guān)系(P0.05),相關(guān)系數(shù)為0.758。2.在高速磨削行為下,車針的質(zhì)量損失量與牙釉質(zhì)的磨削深度呈正相關(guān)關(guān)系(P0.05),相關(guān)系數(shù)為0.392。結(jié)論1.車針與純鈦/牙釉質(zhì)的高速磨削行為下的相互磨削量均呈正相關(guān)關(guān)系。2.牙釉質(zhì)的高速耐磨削性能要明顯弱于純鈦,這和低速下兩者的摩擦學(xué)性能匹配的結(jié)果不一致。
[Abstract]:Objective to study the mutual grinding behavior of needle and metal pure titanium, needle and enamel, and analyze the mechanism of high speed grinding behavior. Methods 1.10 new Mani needle and 2mm thick titanium plate were used in high speed grinding experiment on high speed grinding table. The loss of needle mass before and after grinding was measured by electronic analytical balance. The grinding depth of pure titanium plate was measured by laser confocal microscope, and the relationship between the grinding amount was analyzed. Then the grinding mechanism was analyzed. 40 enamel specimens with thickness of 2 mm were prepared, and 40 new mannier needles and enamel plates were used for high speed grinding on a high speed grinding table. The mass loss of needle before and after grinding was measured by electronic analytical balance, and the grinding depth of enamel was measured by laser confocal microscope. The relationship between the grinding quantity and the grinding quantity was analyzed. The bottom and edge of tooth enamel grinding were observed by electron microscope, and the grinding mechanism was analyzed. Finally, the needle and pure titanium were compared and analyzed. SPSS 19.0 statistical package was used for Pearson correlation analysis. Results 1. Under the high speed grinding behavior, the wear resistance between the needle and enamel is the same. 3. The method of statistical analysis is used to analyze the correlation of Pearson with SPSS 19.0 statistical package. 1. Under the behavior of high speed grinding, There is a positive correlation between the mass loss of the needle and the grinding depth of the titanium plate with a correlation coefficient of 0.758.2. There was a positive correlation between the quality loss of the needle and the grinding depth of enamel, and the correlation coefficient was 0.392.Conclusion 1.There was a positive correlation between the grinding quantity of the needle and the grinding rate of pure titanium / enamel at high speed. Wear resistance of titanium is obviously weaker than that of pure titanium. This is inconsistent with the results of tribological performance matching at low speed.
【學(xué)位授予單位】：浙江中醫(yī)藥大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：R783

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