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作 者:李鸿飞[1]
出 处:《口腔医学》2011年第10期612-614,共3页Stomatology
摘 要:目的比较含钛镍铬合金、钴铬合金、高金合金烤瓷修复体的临床应用效果。方法选择含钛镍铬合金、钴铬合金和高金合金烤瓷修复患者分别为189例(233单位冠)、206例(251单位冠)和97例(118单位冠)修复完成后分别于3个月、1年、3年复查,检查烤瓷冠的色泽、牙龈炎症、龈缘变色以及裂纹或折裂或崩瓷情况。结果含钛镍铬合金、钴铬合金烤瓷冠在色泽、龈缘炎症(3个月时)、裂纹或折裂或崩瓷方面无显著性差异(P>0.05);龈缘变色(1年及3年时)含钛镍铬合金烤瓷冠高于钴铬合金,并明显高于高金合金烤瓷组(P<0.05);裂纹或折裂或崩瓷,3种材料烤瓷牙相比较,差别无显著性(P>0.05)。结论高金合金烤瓷冠在化学稳定性、生物相容性、色泽方面具有明显优势;钴铬合金近几年来已逐步取代镍铬合金烤瓷冠;镍铬合金烤瓷冠远期效果有待进一步考证。Objective To compare clinical effects of the artificial teeth in nickel-chromium alloy containing titanium,cobalt chromium alloy,high-gold alloy-porcelain restorations.Methods The patients treated with nickel-chromium alloy containing titanium(n=189,233units),cobalt chromium alloy(n=206,251units) and porcelain high-gold alloy(n=97,118units) were observed in 3 months,1 year,3 years,including the color of porcelain crowns,gingival inflammation,gingival margin discoloration,and the crack or fracture or collapse of porcelain situation.Results There was no significant difference(P 0.05) in color,gingival margin inflammation(3 months),the crack or fracture or collapse of porcelain between artificial teeth in nickel-chromium alloy containing titanium andte cobalt chromium alloy-porcelain crown;the rate of gingival margin color(1 year and 3 years) of nickel-chromium alloy containing titanium group was higher than that of cobalt-chromium alloy group,and it was significantly higher than that of the high-gold alloy porcelain group(P0.05);the rates of crack,fracture and collapse of 3 groups with different artificial tooth were similar(P 0.05).Conclusions The technic of high-gold alloy porcelain teeth has obvious advantages in chemical stability,biocompatibility and color;the artificial teeth in nickel chrome grill porcelain has been gradually replaced by the teeth made of cobalt-chromium alloy in recent years;the long term effects of Ni-Cr alloy-porcelain crown needs further research.
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