CAJ | 학술논문

目的：探讨4种不同桩核材料对氧化铝全瓷冠(In-Ceram)颜色的影响。方法选取1颗完整离体牙,进行截冠、完善根管治疗和桩道预备。制备不同材料的桩核预备体和1个氧化铝全瓷冠(In-Ceram),分为4组(镍铬合金桩核组、金合金桩核组、氧化锆桩核组、纤维桩树脂核组),每组10颗。采用Minolta CM-700d分光测色仪,测试4组不同桩核材料背景下氧化铝全瓷冠(In-Ceram)唇面中1/3区域的L*、a*、b*值,分别进行完全随机设计的单因素方差分析和两两比较的LED检验,并根据公式计算和比较色差△E。结果4种不同的桩核材料背景下氧化铝全瓷冠(In-Ceram)的L*、a*、b*值的差异有统计学意义(FL=334.90,PL=0.000；Fa=4.43,Pa=0.009；Fb=359.22,Pb=0.000)。镍铬合金桩核和金合金桩核组的色差均超过临床可接受水平(△E>2)；氧化锆桩核和纤维桩树脂核组的色差均不能为肉眼所识别(△E<1.5)。结论临床应用氧化铝全瓷冠(In-Ceram)进行修复时,尤其在前牙区,不建议使用金属桩核。
목적：탐토4충불동장핵재료대양화려전자관(In-Ceram)안색적영향。방법선취1과완정리체아,진행절관、완선근관치료화장도예비。제비불동재료적장핵예비체화1개양화려전자관(In-Ceram),분위4조(얼락합금장핵조、금합금장핵조、양화고장핵조、섬유장수지핵조),매조10과。채용Minolta CM-700d분광측색의,측시4조불동장핵재료배경하양화려전자관(In-Ceram)진면중1/3구역적L*、a*、b*치,분별진행완전수궤설계적단인소방차분석화량량비교적LED검험,병근거공식계산화비교색차△E。결과4충불동적장핵재료배경하양화려전자관(In-Ceram)적L*、a*、b*치적차이유통계학의의(FL=334.90,PL=0.000；Fa=4.43,Pa=0.009；Fb=359.22,Pb=0.000)。얼락합금장핵화금합금장핵조적색차균초과림상가접수수평(△E>2)；양화고장핵화섬유장수지핵조적색차균불능위육안소식별(△E<1.5)。결론림상응용양화려전자관(In-Ceram)진행수복시,우기재전아구,불건의사용금속장핵。
Objective To investigate the color effect of four kinds of post-cores on In-Ceram Alumina ceramic system. Methods An intact extracted tooth was selected for this study. The crown was excised and the root received endodontic treatment. Four kinds of post-cores with different materials, i.e. Ni-Cr alloy, golden alloy, ceramic post-core, and resin core with fiber-post, were prepared for this root. Each group had ten specimens. One In-Ceram Alumina crown was manufactured to fit for these post-cores. The color parameters (L*, a*and b*) of the middle 1/3 of the crown were measured by the CM-700d spectrophotometric tester for the four groups. The values of L*, a*, and b*were compared by an ANOVA and a LED test, and the △E was calculated. Results There were significant differences of the values of L*, a*, and b*in four groups (FL=334.90,PL=0.000;Fa=4.43,Pa=0.009;Fb=359.22,Pb=0.000). The △E values in the Ni-Cr alloy group and the golden alloy group were beyond the level that could be accepted in clinic (△E>2). While the △E values in the all ceramic post-core group and the resin core with fiber-post group were satisfied in clinic. The color difference of these two groups could not be identified by the naked eye (△E<1.5). Conclusion The metal alloy post-core would not be recommended for clinical practice with In-Ceram Alumina ceramic system especially in the anterior teeth area.