CAJ | 학술논문

目的追踪观察金沉积基底冠熔结镍铬桥体烤瓷桥、金合金烤瓷桥和镍铬合金烤瓷桥的临床效果,为评价不同烤瓷桥临床修复的远期效果提供参考.方法制作金沉积基底冠熔结镍铬桥体烤瓷桥(A组)35件,同期分别制作金合金烤瓷桥(B组)和镍铬合金烤瓷桥(c组)各35件,临床检查105件修复体的边缘密合性,随访复查修复体的基牙继发龋和修复体折裂、折断、脱落情况.结果 105件修复体平均随访6年.A组边缘密合性好(100%),明显好于B组(91%)与C组(77%)(P<0.01).6年内A组基牙继发龋率为0%(0/35),B组基牙继发龋率为6%(2/35),c组基牙继发龋率为14%(5/35).A组中有1例在修复2年后饰面瓷崩瓷,占3%;随访期内B组无崩瓷现象;C组1例在修复4年后饰面瓷崩瓷,占3%,3种修复体崩瓷率差异无统计学意义(P>0.05).其余修复体均无桥架松动、折断以及修复体脱落.结论金沉积基底冠熔结镍铬桥体烤瓷桥有良好的边缘密合度,强度可满足临床要求,有临床应用价值.但其与常规铸造合金烤瓷桥一样,需谨慎使用,提倡用于无髓基牙烤瓷桥修复.
목적 추종관찰금침적기저관용결얼락교체고자교、금합금고자교화얼락합금고자교적림상효과,위평개불동고자교림상수복적원기효과제공삼고.방법 제작금침적기저관용결얼락교체고자교(A조)35건,동기분별제작금합금고자교(B조)화얼락합금고자교(c조)각35건,림상검사105건수복체적변연밀합성,수방복사수복체적기아계발우화수복체절렬、절단、탈락정황.결과 105건수복체평균수방6년.A조변연밀합성호(100%),명현호우B조(91%)여C조(77%)(P<0.01).6년내A조기아계발우솔위0%(0/35),B조기아계발우솔위6%(2/35),c조기아계발우솔위14%(5/35).A조중유1례재수복2년후식면자붕자,점3%;수방기내B조무붕자현상;C조1례재수복4년후식면자붕자,점3%,3충수복체붕자솔차이무통계학의의(P>0.05).기여수복체균무교가송동、절단이급수복체탈락.결론 금침적기저관용결얼락교체고자교유량호적변연밀합도,강도가만족림상요구,유림상응용개치.단기여상규주조합금고자교일양,수근신사용,제창용우무수기아고자교수복.
Objective To evaluate and compare effects of compound galvano-ceramic bridges with Ni-Cr alloy ceramic bridges and gold alloy ceramic bridges in clinic.Methods A total of 105 bridges were made for 103 patients.Of them,35 were compound galvano-ceramic bridges,35 Ni-Cr alloy ceramic bridges,and 35 gold alloy ceramic bridges respectively.The marginal fitness and fracture of ceramic bridges were checked and caries or second caries of all abutments were also examined in clinic at 6 years after cementation.Results The marginal fitness of compound galvano-ceramic bridges was evaluated as good in 100% of the bridges,which was better than the fitness of gold alloy ceramic bridges(91%) and Ni-Cr alloy ceramic bridges(77%)(P<0.01).There was no difference in fracture of ceramic layer among compound galvano-ceramic,gold alloy ceramic,and Ni-Cr alloy ceramic bridges at 6 years(P>0.05).None of compound galvano-ceramic bridge was found out caries or second caries of abutments.Two of 35(6%) gold alloy ceramic bridges was found out second caries of abutments and five of 35(14%) Ni-Cr alloy ceramic bridges were found out caries or second caries of abutments at 6 years.None of frameworks of all bridges was loose or broken.Conclusions The 6-year clinical study on compound galvano-ceramic bridges presents good results in marginal fitness and fracture resistance,which indicates the compound galvano-ceramic bridge can be used in clinic.