摘要
目的:比较选择性激光融积钴铬合金烤瓷冠和传统铸造钴铬合金烤瓷冠的临床修复效果。方法 :选择168例、220颗患牙,分别用选择性激光融积钴铬合金烤瓷冠和铸造钴铬合金烤瓷冠修复,在粘结后1、6、12、24个月进行随访观察。采用美国公共健康协会的修订标准对修复体的临床效果进行评价,并用SPSS 20软件包对数据进行t检验和χ2检验。结果:观察期间失访6例,随访162例共205件修复体,结果显示,选择性激光融积钴铬合金烤瓷冠患者满意度较好。在粘结24个月后,1个修复体的边缘密合度欠佳;而铸造钴铬合金烤瓷冠组有6例边缘着色,8例边缘密合度欠佳,两组间比较差异具有差异性(P<0.05)。结论:选择性激光融积钴铬合金烤瓷冠边缘着色较少,具有良好的边缘密合度,近期临床效果满意。
PURPOSE： To evaluate the clinical effects of selective laser melting （SLM） deposition basal crowns and cobalt chromium alloy casting base crowns. METHODS： One hundred and sixty eight patients treated with either SLM deposition basal crowns （110 teeth） or cobalt chromium alloy casting basal crowns （110 teeth） were followed-up for 1 month, 6months, 12months and 24 months. The revised standard of American Public Health Association was used to evaluate the clinical effect of restoration, including the color of porcelain crowns, gingival inflammation, gingival margin discoloration, and crack or fracture. Data analysis was conducted with SPSS 20 software package for Student＇s t test and Chi-square test. RESULTS： Six cases were lost to follow-up. The patients who were treated with SLM deposition basal crowns （104 teeth） and cobalt chromium alloy casting base crowns （101 teeth） completed the study. Patients were more satisfied with SLM deposition cobalt chromium alloy porcelain crowns. There was 1 prosthesis with poor marginal fit after 24 months of restoration in SLM crowns. There were 6 prostheses with edge coloring and 8 with poor marginal fit in cobalt chromium alloy casting base crowns, which was significantly different between the 2 groups （P〈0.05）. CONCLUSIONS： The SLM deposition copings results in smaller edge coloring and better marginal fit than those of cobalt-chrome copings. Patients are pleased with short-term clinical results.
出处
《上海口腔医学》
CAS
CSCD
北大核心
2014年第3期350-353,共4页
Shanghai Journal of Stomatology
关键词
选择性激光融积
钴铬合金
基底冠
铸造
Selective laser melting
Cobah-chrome copings
Basal crown
Cast
