摘要
目的:探讨5种不同材料的全冠修复体对基牙龈沟液(GCF)中的天冬氨酸转氨酶(AST)和碱性磷酸酶(ALP)水平的影响。方法:选择拟行固定冠修复的病例50例,随机分为5组,分别采用镍铬合金、钴铬合金、纯钛、金合金、瓷全冠修复。在修复前、修复后1、3、6、12、24个月分别进行牙周临床检查并测定、分析龈沟液(GCF)量和GCF中AST、ALP的总量。结果:修复后1个月时,5组之间各项指标均无统计学差异(P>0.05)。修复后3、6、12、24个月时,镍铬合金组、钴铬合金烤瓷冠组各项指标均较修复前明显增加,且呈递增趋势(P<0.05)。而纯钛组、金合金组、全瓷组在修复后1、3、6、12、24个月各时间点与修复前相比各项指标均无明显改变,差异无统计学意义(P>0.05),且3组间各项指标同期相比亦无明显差异(P>0.05)。结论:临床制作合格的镍铬合金烤瓷冠、钴铬合金烤瓷冠对牙周组织有一定的不利影响;而纯钛烤瓷冠、金合金烤瓷冠、全瓷冠对牙周组织的影响相对较小。
AIM：To investigate the effects of five full-crown materials on the amount of gingival crevicular fluid（GCF）,and on the level of aspartate aminotransferase（AST） and alkaline phosphatase（ALP） in GCF of abutment teeth.METHODS： The anterior teeth of 50 patients were randomly restored by Ni-Cr,Co-Cr,Gold alloy PFM,Ti PFM and all ceramic crowns.Before and 1,3,6,12,24 months after full-crown restoration,GCF was collected at the abutment teeth.The levels of AST and ALP were measured by an automated chemical analyzer.RESULTS：One month after restoration,no significant difference was found in all indices among the five groups（P〉0.05）.GCF,AST and ALP time-dependently increased in Ni-Cr and Co-Cr alloy groups（P〈0.05）.However,GCF,AST and ALP only increased slightly in Ti,Gold PFM and all ceramic crown groups（P〉0.05）.CONCLUSION： Ti PFM,Gold PFM and all ceramic crowns may exert less influence on periodontal tissues than Ni-Cr and Co-Cr based PFM.
出处
《牙体牙髓牙周病学杂志》
CAS
北大核心
2012年第9期514-517,共4页
Chinese Journal of Conservative Dentistry
基金
陕西省卫生厅科研基金(2010D32)
