金合金全冠和镍铬合金全冠对牙周组织影响的比较  

Comparison of the Influences of Gold Alloy Metal Crown and Ni-Cr Alloy Metal Crown on Gingival Health

作　　者：胡运东[1] 吴效民[1] 于宏跃[1] 马天岳[1] 

机构地区：[1]中国医学科学院北京协和医学院北京协和医院口腔科,北京100730

出　　处：《中国医学科学院学报》2010年第3期269-271,共3页Acta Academiae Medicinae Sinicae

摘　　要：目的比较金合金全冠和镍铬合金全冠对基牙牙周组织的影响。方法将20例需做一颗患牙全冠修复的患者分为金合金全冠组(n=9)和镍铬合金全冠组(n=11)两组,并以每颗实验牙的健康对侧同名牙作为对照牙,分别于基牙预备前及修复6个月后测定实验牙及其对照牙的龈沟液量、探诊深度及龈沟出血指数。结果金合金全冠组实验牙基牙预备前的龈沟液量明显大于修复6个月后(P<0.05),镍铬合金全冠组实验牙修复6个月后的龈沟出血指数明显大于基牙预备前(P<0.05),其余实验结果各组牙修复前后差异无统计学意义(P>0.05)。结论修复后短期内未观察到金合金全冠对基牙牙周组织造成明显损害,而镍铬合金全冠则使基牙的龈沟出血指数增大。Objective To compare the influences of gold alloy metal crown and Ni-Cr alloy metal crown on ginigival health.Methods Totally 20 patients requiring one metal crown restoration were divided into the gold alloy metal crown group(n=9) and Ni-Cr alloy metal crown group(n=11).The contra-lateral homonymy natural healthy teeth served as controls.Before the tooth preparation and 6 months after crown placement,the weight of gingival crevicular fluid(GCF) of each tooth(included the test teeth and the control teeth) was measured,and the probing depth and the sulcus bleeding index of each tooth were also recorded.Results In the gold alloy metal crown group,the weight of GCF detected before the tooth preparation was significantly larger than that detected 6 months after restoration(P<0.05).In the Ni-Cr alloy metal crown group,the sulcus bleeding index recorded 6 months after restoration was significantly larger than that recorded before the tooth preparation(P<0.05).The other experimental indicators were not significantly different before and after restoration.Conclusion The gold alloy metal crowns will not cause obvious harm to the periodontal tissues of the abutments shortly after restoration,while the Ni-Cr alloy metal crowns may increase the risk of sulcus bleeding.

关 键 词：金合金全冠 镍铬合金金属全冠 牙周组织 

分 类 号：R783[医药卫生—口腔医学]