發(fā)布時間：2018-06-07 09:08

  本文選題：陶瓷 + 金瓷界面�。� 參考：《大連醫(yī)科大學(xué)》2012年碩士論文

【摘要】：目的：通過電子探針觀察不同基底材料與飾面瓷之間界面化學(xué)元素的變化，，定性分析不同基底材料與飾面瓷之間化學(xué)結(jié)合的方式和強度。 材料和方法：以上頜側(cè)切牙為模型，分別制作鎳鉻合金、氧化鋯、金鈀合金(Au-Pd合金)、壓鑄瓷基底、鈷鉻合金、混合金鈀合金(混合Au-Pd合金)基底冠各一個，依次記為1、2、3、4、5、6組�；旌辖疴Z合金為將1/3比例的回收舊金屬加入到實驗樣本內(nèi)。然后對六個基底冠依廠家推薦的程序進(jìn)行烤瓷，分別燒結(jié)遮色瓷和體瓷，將唇側(cè)瓷層總厚度控制在唇側(cè)2mm左右。將六個實驗樣本用環(huán)氧樹脂包埋在長4cm寬3cm高2cm的聚醚橡膠模具內(nèi)，靜置一夜待環(huán)氧樹脂凝固。用慢速鋸沿實驗樣本的縱軸切開，對切面進(jìn)行打磨、拋光、超聲清洗。其中氧化鋯樣本與壓鑄瓷樣本在真空下噴金，然后用電子顯微鏡在2000倍下對鎳鉻合金、氧化鋯基底、金鈀合金、鈷鉻合金、混合金鈀合金五種基底冠進(jìn)行界面觀察，用電子探針線掃描界面，在界面兩側(cè)10微米的范圍內(nèi)讀取數(shù)據(jù)探查界面元素的交換轉(zhuǎn)移情況，點掃描界面基底冠側(cè);在50倍的放大倍數(shù)下對壓鑄瓷進(jìn)行界面觀察以及電子探針的線掃描。 結(jié)果：1組（鎳鉻基底）鎳鉻基底冠檢測出Al、Si、Ni、Cr、O。Al Si在2微米的范圍滲透入鎳鉻基底冠，Ni、Cr在2微米的范圍內(nèi)進(jìn)入飾面瓷內(nèi)。 2組（氧化鋯基底）基底冠檢測出Al、Si，Al、Si在2微米的范圍內(nèi)進(jìn)入基底冠并緩慢減少。 3組（金鈀基底）基底冠側(cè)檢測出Al、Na、Si、Sn、Pt、Au、In，進(jìn)入基底冠1微米。 4組（壓鑄瓷基底）電鏡下未發(fā)現(xiàn)明顯的結(jié)合層，整個圖像完整無縫隙，未見飾面瓷與壓鑄瓷的結(jié)合界面。 5組(鈷鉻基底)基底冠發(fā)現(xiàn)C、Si、Cr、Co，Si在界面向基底冠方向緩慢下降約2微米。Cr、Co在界面到飾面瓷方向內(nèi)也是呈逐步減少的趨勢，進(jìn)入飾面瓷內(nèi)約兩微米的距離 6組（混合金鈀基底）基底冠側(cè)發(fā)現(xiàn)了Al、K、Fe、Sn、Pt、Au。線掃描結(jié)果顯示Pt在界面處向飾面瓷內(nèi)滲透約一微米左右。 結(jié)論：鎳鉻、氧化鋯、金鈀、鈷鉻、混合金鈀五種不同基底冠與飾面瓷之間均發(fā)生了程度不同的元素轉(zhuǎn)移變化，隨著界面深度的變化，元素的轉(zhuǎn)移變化強度減弱直至消失，證明這五種基底冠在和飾面瓷的燒結(jié)過程中均發(fā)生了化學(xué)結(jié)合。壓鑄瓷烤瓷全冠在電鏡放大50倍下未未見飾面瓷與壓鑄瓷的結(jié)合界面。線掃描結(jié)果顯示Si、Na、K在整個掃描范圍內(nèi)無明顯波動。這一觀察結(jié)果說明了壓鑄瓷基底與飾面瓷之間的成分相似與均一性。
[Abstract]:Objective: to observe the change of interfacial chemical elements between different substrate materials and veneer porcelain by electron probe, and to qualitatively analyze the way and strength of chemical binding between different substrate materials and veneer porcelain. Materials and methods: Ni-Cr alloy, zirconia, gold-palladium alloy Au-Pd alloy, die-cast porcelain substrate, cobalt-chromium alloy and mixed alloy palladium alloy (mixed Au-Pd alloy) substrate crown were made by using the above maxillary lateral incisors as models. The mixed alloy palladium alloy is used to add a 1 / 3 ratio of recovered old metal to the experimental sample. Then the six base crowns were sintered to cover the porcelain and the body porcelain according to the procedure recommended by the manufacturer. The total thickness of the porcelain layer on the lip side was controlled about the 2mm of the lip side. Six experimental samples were embedded with epoxy resin in polyether rubber die with long 4cm wide 3cm and high 2cm. Use slow saws to cut along the longitudinal axis of experimental samples, polishing, polishing and ultrasonic cleaning. The samples of zirconia and die-cast porcelain were sprayed in vacuum, and then the interfacial observation of nickel chromium alloy, zirconia substrate, gold palladium alloy, cobalt chromium alloy and mixed alloy palladium alloy was carried out at 2000 times by electron microscope. In the range of 10 micron on both sides of the interface, the electron probe line scanning interface is used to read the data to detect the exchange and transfer of the interface elements, and the base crown of the point scanning interface is obtained. The interface of die-cast porcelain was observed at 50 times magnification and the scanning of electron probe was carried out. Results in group 1 (Ni-Cr substrate), Ni-Cr substrate crowns were detected to have infiltrated into Ni-Cr substrates in the range of 2 渭 m, and niocr into veneer porcelain in the range of 2 渭 m. In the two groups (zirconia substrate), the Al _ (Si-Si) _ (Si) was detected to enter the substrate crown in the range of 2 渭 m and to decrease slowly. In three groups (gold and palladium substrates), Albumin was detected on the coronal side of the substrate, and it entered 1 micron of the basal crown. In the four groups (die-cast porcelain substrate), no obvious bonding layer was found under electron microscope, and the whole image was complete and seamless, and there was no interface between veneer porcelain and die-cast porcelain. Group 5 (Cobalt-Chromium substrate) substrate crown found that Causiu Cr-CoSi slowly decreased about 2 渭 m from the interface to the substrate crown. Cr-Co also showed a decreasing trend in the direction from the interface to the facing porcelain, and the distance between the two microns into the decorative porcelain was about two microns. In 6 groups (mixed alloy palladium substrates), the Al _ (K) K _ (Fe) Sn _ (PtN) au was found on the coronal side of the substrate. The results of line scanning show that Pt permeates about one micron into the veneer porcelain at the interface. Conclusion: nickel chromium, zirconia, gold palladium, cobalt chromium and mixed alloy palladium all have different degree of element transfer between the porcelain with different substrate crowns. With the change of interface depth, the change intensity of element transfer decreases and disappears. It is proved that the five kinds of substrate crowns are chemically bonded in the sintering process of the veneer porcelain. There was no interface between veneer porcelain and die-cast porcelain when the crown was magnified 50 times by electron microscope. The results of linear scanning show that there is no obvious fluctuation in the whole scanning range. This observation indicates the similarity and uniformity of the composition between the die cast porcelain substrate and the veneer porcelain.
【學(xué)位授予單位】：大連醫(yī)科大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：R783.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張文蘭,王汝成,陳小明,賴明遠(yuǎn);電子探針面分析與相分析技術(shù)及其應(yīng)用[J];電子顯微學(xué)報;1999年06期

2 文志紅;金屬表面的處理對金瓷結(jié)合強度的影響[J];國外醫(yī)學(xué).口腔醫(yī)學(xué)分冊;1994年02期

3 雷亞超,魏治統(tǒng),杜傳詩;預(yù)氧化影響兩種非貴金屬與瓷結(jié)合的研究[J];華西口腔醫(yī)學(xué)雜志;1987年02期

4 殷家悅;張忠提;艾紅軍;司文捷;包揚;;釔穩(wěn)定氧化鋯基底材料與飾面瓷結(jié)合性能的實驗研究[J];華西口腔醫(yī)學(xué)雜志;2009年06期

5 文志紅，杜傳詩，巢永烈，鄭弟澤;除氣和預(yù)氧化對金－瓷結(jié)合強度的影響[J];華西口腔醫(yī)學(xué)雜志;1996年01期

6 文志紅,杜傳詩,杜莉,巢永烈,楊征,李勇;金-瓷修復(fù)體瓷折裂及剝脫原因分析[J];華西口腔醫(yī)學(xué)雜志;1998年01期

7 莫安春,岑遠(yuǎn)坤,廖運茂,王建華,石旭旭;低熔瓷熔附于純鈦的結(jié)合界面研究[J];華西醫(yī)科大學(xué)學(xué)報;2001年03期

8 韓曉莉,鄺先昊,巢永烈,李寧;不同表面預(yù)處理條件對金瓷結(jié)合強度的影響[J];口腔材料器械雜志;1999年04期

9 王航,巢永烈,梁星,鄺先昊;種植金瓷固定橋的瓷層厚度對瓷裂影響的試驗研究[J];口腔醫(yī)學(xué)縱橫;1998年01期

10 王晟,王貽寧,王正;富含金的中間介質(zhì)對Ni-Cr合金與瓷結(jié)合強度的影響[J];口腔醫(yī)學(xué)研究;2002年03期

本文編號：1990636