Objective To compare the clinical effect of the ceramic crowns made of Ni-Cr alloy, gold alloy, gold-electroforming.
Objective To investigate the effects of Sol-Gel coating on the corrosion resistance of nickel-chronium alloys in vitro.
3. 镍铬合金试件、烤瓷试件、新鲜离体上中切牙、烤瓷熔附金属全冠共60例，分6组，每组10例。1组：Ni-Cr合金＋Clearfil SE BOND+复合树脂；2组：烤瓷＋Clearfi SE BOND+复合树脂；3组：Ni-Cr合金＋Lute+复合树脂；4组：烤瓷＋Lute+复合树脂；5组：牙釉质＋Durafill Bond+复合树脂；6组：烤瓷熔附Ni-Cr合金。1~5组修复材料均为Durafill vs口腔光固化复合树脂。
Methods: There were 60 cases which included nickel-chromium alloy and porcelain specimens, freshly extracted incisors and porcelain-fused-metal crowns. All were divided into 6 groups with 10 in each group. They are two groups of Ni-Cr alloy or porcelain specimens, one group of incisors and the other of crowns. Each specimen's surface of Ni-Cr alloy and porcelain was bonded with composite resin named Durafill vs by ClearfilSE BONDor Lute according to the guidebook.
4. 摘要］ 目的：分析烤瓷用镍铬合金在上瓷前经过阳极钝化，除气预氧化处理后对其表面氧化膜的形貌、厚度的影响。
The sample's metal surface expanded and the thickness of oxide film is 1.72 times of the control samples.
5. 目的 评价IPS Empress 2全瓷冠修复技术修复上颌前牙的临床效果。方法将56例患者172颗牙分成两组，试验组30例86颗牙，以IPS Empress 2全瓷冠修复技术修复；对照组26例86颗牙，以镍铬合金烤瓷冠修复。
Methods A total of 56 patients (172 teeth) were randomly divided into two groups: in the experimental group, 30 patients of 86 teeth were restored with IPS Empress 2 all porcelain crown restoration; and in the control group, 26 patients of 86 teeth were restored with nichrome baked ceramic crown.
The adaptation of precious alloy crown and galvanized forming crown are superior toNi-Cr crown.
7. 目的 对镍铬合金烤瓷冠、贵金属合金烤瓷冠和金沉积烤瓷冠的边缘适合性进行研究，为临床应用提供一定的理论依据和指导。
Objective To compare the adaptation of porcelain fused-to-metal restorations made from Ni-Cr alloy, precious alloy and galvanized forming copings after cementation and to provide a theory guidance for their ap-plication.
8. 分别制作镍铬合金烤瓷冠、贵金属合金烤瓷冠和金沉积烤瓷冠各8个，将3种烤瓷冠在无水酒精中超声清洁5 min，用聚羧酸锌黏固剂按编号将全冠黏固于各自的塑料代型上，指压就位维持10 min。
Methods Three kinds of crowns(Ni-Cr alloy, precious alloy and galvanized forming) were manufactured and cleaned by ultrasonic vibrate with alcoholic solution for 5 minutes, and cemented on their dies as their order. All the crowns were cemented by polycarboxylate zinc-cement and maintained 10 minutes.
The microstructure and the phase structure of original alloy and each generation castings which had been polished by buffing machine were observed and analyzed by metallographic microscope and X-ray diffractometer.
This laboratory study was to measure the bond strength of a new NiCr alloy to porcelain with pullthrough test, compared to that of the conventional NiCr alloys to porcelain. The results revealed that the bond strength of the new NiCr alloy to porcelain was equal or superior to that of the conventional NiCr alloys to porcelain.
OBJECTIVE: To investigate the effects of recasting on the composition and microstructure of Ni-Cr ceramic alloys.
There is no significant difference of main composition and phase structure between original alloy and each generation castings in argon protection.
Objective: To study the physical castability of a new type nickel based ceramic alloy w ithout beryllium by comparing with CW-PA alloy and VB alloy, for the purpose of future clinical application.
The mean fracture force of Ni-Cr alloy and Titanium is 1029 N and 902 N.
OBJECTIVE: To investigate the effect of recasting on bonding strength of porcelain fused to a Ni-Cr ceramic alloy.
1Nie chrome the metal alloy roast a porcelain hat:Inside hat from the base metals Nie chrome metal alloy cast and become, in the complicated mouth cavity environment, the revelation will slowly resolve in the metal part in the mouth cavity, and release black oxide, cause partial organization dyeing, this is also should kind the repair realize the most important reason of causing the gum black line.
17. 目的 在体外模拟环境下，研究溶胶凝胶法制备的涂层对牙科烤瓷镍铬合金耐腐蚀性能的影响。
Methods The bond strength of coating-substrate interface sintered at different temperatures（300, 400, 500, 600 ℃） was tested by scratching method.
A three-year clinical evaluation of galvano-ceramic bridges made by Ni-Cr pontic bonding galvano caps
Objective: To evaluate the clinical effect of galvano-ceramic bridges made by Ni-Cr pontic fired bonding galvano caps with highly temperature-resistant adhesive based on three-year clinical trials.
Effect of Gilt Ni-Cr Alloy PFM on the Gingival Tissue