摘要
目的:评价镀金镍铬烤瓷修复体与镍铬烤瓷修复体在3个单位用于前牙修复的5年临床效果。方法:对3个单位158例患者的268颗天然牙随机分为2组:134颗镍铬合金烤瓷(对照组)与134颗镀金烤瓷修复体(镀金组)进行上前牙固定修复,分别于粘结时、3个月、6个月、1年、3年及5年对比评价其修复效果,主要临床观察指标为牙龈变色与探诊出血情况。结果:两组修复体临床戴入时均未发生探诊出血情况,对照组有3颗发生了牙龈变色(2.24%),镀金组也有1颗发生了牙龈变色(0.75%),两组之间存在显著差异(P<0.05)。3个月后有1例镍铬烤瓷修复体出现牙龈探诊出血(0.75%),而牙龈变色的表现与基线无明显变化(P>0.05),镀金烤瓷组无变化。1年、3年及5年复诊时镀金烤瓷冠与镍铬合金烤瓷冠相比,较少出现烤瓷冠边缘牙龈变色和牙龈灰线及探诊出血情况(P<0.05)。结论:本研究5年临床观察结果提示镀金镍铬烤瓷冠用于前牙修复短期效果较为理想,且较镍铬烤瓷冠良好,但是随着应用时间的延长,其美学效果逐步降低。
Objective To evaluate the 5-years clinical quality of gold-plating technique used in Ni-Cr metal ceramic restorations in anterior teeth in 3 units. Methods 268 teeth of 158 cases from 3 units were radonmaziedlly divided into two groups. 134 teeth of control group were restored with Ni-Cr metal ceramic crown, while 134 teeth in gold-plating group were treated with gold-plating technique on the Ni-Cr metal restorations.Gingival discoloration, bleeding on probing （BOP） were examined at baseline,3 months,6 month,1 year,3 years and 5years after restoration cementation. Chisquare test was used for statistical analysis with software SPSS 18.0. Results Gingival discolorations were found in 3 cases of control group （2.24%）, 1 case in gold-plating group （0.75%） at baseline, there was significant difference between 2 groups （P〈0.05）, while no probing bleeding was found in both groups. After 3 and 6 months,bleeding on probe was observed in one case of control group （0.75%）,and no obvious change was found on gingival discoloration in 2 groups. 12 months later,significant difference was found between the two groups （15.6% vs 37.5%）（P〈0.05）.Gingival discolorations and BOP found in both groups were greater after 3 to 5 years follow-up （P〈0.05）,and there were statically different between control group and gold-plating group （P〈0.05）. Conclusion Within the limitations of this study,Gold- plating might be a good method in solving the problem of gingival discoloration in unprecious metal ceramic crown, but more gingival discoloration were found during long time usage.
出处
《中国美容医学》
CAS
2012年第10期1805-1808,共4页
Chinese Journal of Aesthetic Medicine
基金
南京军区医疗卫生专业人才"122工程"学科带头人培养计划
军医疗科研"十一五"计划基金项目(06MB151)
南京军区医疗科研"十一五"创新计划基金项目(Y07010)
关键词
金属烤瓷冠
镍铬合金
前牙
修复
镀金
porcelain fused to metal crown
nickel chrome alloy
anterior teeth
restoration
gold-plating technique
