本文選題：氧化鋯 + 基底冠�。� 參考：《北京協(xié)和醫(yī)學院》2014年碩士論文

【摘要】：目的： 通過體外實驗,研究不同顏色氧化鋯基底瓷和不同樁核背景對氧化鋯全瓷修復體顏色的影響。采用Crystaleye電腦比色儀對統(tǒng)一飾瓷后的氧化鋯全瓷試件的色度學參數(shù)進行測量和分析,探討不同顏色的基底瓷和樁核背景對氧化鋯全瓷試件顏色的影響規(guī)律,為技師和臨床醫(yī)生更好的呈現(xiàn)氧化鋯全瓷修體的美學效果而提供理論和實驗依據(jù)。 方法： 實驗一：選取4種不同顏色的氧化鋯基底瓷塊制備邊長為10mm,厚度為0.5mm的正方形試件各10件,依次分為A (pure色)、B(light色)、C (medium色)、D(intense色)四組,并均勻涂塑1.0mm的牙本質(zhì)瓷。首先用Crystaleye比色儀依次測量40個試件的色度值,每個試件測三次,取平均值,并計算組間ΔE值。然后選擇Vita Classical比色板對試件進行比色,記錄比色結(jié)果并計算比色片與試件之間的ΔE值。結(jié)果用SPSS12.0軟件進行統(tǒng)計學分析。 實驗二：選取4種不同顏色的氧化鋯基底瓷塊制備邊長為10mm,厚度為0.5mm的正方形試件各10件,依次分為A(pure色)、B(1ight色)、C (medium色)、D(intense色)四組,并均勻涂塑1.0mm的牙本質(zhì)瓷。分別制作相同規(guī)格的鈷鉻背景試件、金鉑合金背景試件及樹脂背景試件各1片。將四組氧化鋯試件分別置于三種不同背景試件之上,采用Crystaleye比色儀測量試件的色度值,每個試件測三次,取平均值,并計算ΔE值。結(jié)果用SPSS12.0軟件進行統(tǒng)計學分析。 結(jié)果： 實驗一：ABCD四組試件組間的Lab值變化均具有統(tǒng)計學意義。四組試件組間的色差均大于1.5。選用Vita Classical比色板對四組試件進行比色,結(jié)果均為B3色。其中與B3比色片色差值最小的為C組試件,色差最大的為A組試件。 實驗二：以樹脂背景組作為標準,鈷鉻合金背景組與樹脂背景組的Lab值差異具有統(tǒng)計學意義；金鉑合金背景組與樹脂背景組的Lab值差異具有統(tǒng)計學意義。鈷鉻合金背景組、金鉑合金背景組與樹脂背景組相比,色差值均小于1.5。在四組試件中,B組試件在不同背景下的色差值最大,D組試件的色差值最小。 結(jié)論： 1、在基底瓷厚度(0.5mm)和飾面瓷厚度(1.0mm)一定、飾面瓷顏色相同的情況下,氧化鋯基底瓷的顏色對修復體的顏色有一定影響,不同顏色的基底瓷使修復體的色度值發(fā)生變化。 2、Pure、liglt、medium、intense色基底瓷塊兩兩之間的色差均可被肉眼識別,故選擇基底瓷顏色要慎重,不可隨意挑選。技師在使用WIELAND公司的ZENO(?)TRANSLUCENT氧化鋯基底瓷制作修復體時應根據(jù)相應的配色指導選擇基底瓷塊顏色,以達到氧化鋯修復體最好的顏色再現(xiàn)。 3、不同材料的樁核對WIELAND公司的ZENO(?) TRANSLUCENT氧化鋯材料顏色的影響較小,臨床上無需不遮蔽背景色。在四種顏色的氧化鋯基底瓷塊中,intense色瓷塊的遮色效果較強,light色瓷塊遮色效果較弱。
[Abstract]:Objective: The effects of different color zirconia substrate porcelain and different post core background on the color of Zirconia all-ceramic prosthesis were studied in vitro. The colorimetric parameters of zirconia all-ceramic specimens after uniform decoration were measured and analyzed by Crystaleye computer colorimetry, and the influence of different colors on the color of zirconia all-ceramic specimens was discussed. It provides theoretical and experimental basis for technicians and clinicians to better present the aesthetic effect of zirconia all-ceramic body. Methods: Experiment 1: four kinds of Zirconia substrate ceramic blocks of different colors were selected to prepare 10 square specimens with a side length of 10 mm and a thickness of 0.5mm, which were divided into four groups in turn. The samples were divided into four groups, and the dentin porcelain of 1.0mm was coated evenly. First, the chroma values of 40 samples were measured by Crystaleye colorimetry. The average values of each specimen were measured three times, and the 螖 E values between groups were calculated. Then the Vita Classical colorimetric plate was selected to measure the color of the specimen, and the colorimetric results were recorded and the 螖 E value between the colorimetric sheet and the specimen was calculated. Results SPSS12.0 software was used for statistical analysis. Experiment 2: four kinds of Zirconia substrate ceramic blocks of different colors were selected to prepare 10 square specimens with a side length of 10 mm and a thickness of 0.5mm. The samples were divided into four groups in turn, which were divided into four groups: A(pure / B1ight / C medium and 1.0mm dentin. The same size cobalt chromium background specimen, gold platinum alloy background specimen and resin background specimen were made respectively. Four sets of zirconia specimens were placed on three different background specimens. The chroma values of the samples were measured by Crystaleye colorimetry. The average values of each sample were measured three times, and the 螖 E values were calculated. Results SPSS12.0 software was used for statistical analysis. Results: In experiment 1: ABCD, the changes of Lab were statistically significant. The color difference between the four groups was more than 1.5. The Vita Classical colorimetric plate was used to measure the color of the four groups of specimens, and the results were all B 3 color. Group C was the least color difference with B _ 3, and A was the largest color difference between B _ 3 and B _ 3. Experiment 2: taking the resin background group as the standard, the Lab value of cobalt chromium alloy background group and resin background group had statistical significance, while the Lab value of gold platinum alloy background group and resin background group had statistical significance. The color difference of cobalt chromium alloy background group, gold platinum alloy background group and resin background group were lower than 1.5. Among the four groups of specimens, group B has the largest value of color difference in different backgrounds, and group D has the smallest value of color difference. Conclusion: 1. The color of zirconia substrate has a certain influence on the color of the restoration when the thickness of base porcelain is 0.5 mm) and the thickness of veneer porcelain is 1.0 mm), and the chroma value of the restoration is changed with different colors of substrate porcelain. (2) the color difference between the two pairs of the Pureligltl / intense substrate can be recognized by the naked eye, so we should be careful in choosing the color of the base porcelain, so we should not choose it at will. In order to achieve the best color reproduction of zirconia prosthesis, the technician should select the color of the substrate ceramic block according to the corresponding color matching instruction when making restoration with ZENO(?)TRANSLUCENT zirconia substrate porcelain of WIELAND Company. 3, check the pile of different materials WIELAND Zeno) The color of TRANSLUCENT zirconia material is less affected and no background color is needed clinically. In the four kinds of zirconia substrate ceramic blocks, the shade effect of intense ceramic blocks is stronger than that of light ones.
【學位授予單位】：北京協(xié)和醫(yī)學院
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：R783.3

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