CAJ | 학술논문

目的：研究不同粘结剂、不同民族对烤瓷冠修复前后不同时期冠边缘龈上菌斑中变形链球菌的定植变化影响。方法：随机选择下颌第一磨牙行钯银合金烤瓷冠修复的维吾尔族、汉族患者30例，根据使用粘结剂的不同分为两组，采用荧光定量聚合酶链反应测定冠修复前后的变形链球菌定量值，并观察其菌斑指数。结果：修复后，两组的菌斑指数均较修复前明显升高（P<0.05）；与修复前比较，玻璃离子粘结剂组1、3个月的变形链球菌相对定量值减小（P<0.05），聚羧酸锌粘结剂组1、3个月的变形链球菌相对定量值增加（P<0.05）；同组之间，维吾尔族患者的变形链球菌的相对定量值高于汉族患者（P<0.05）。结论：玻璃离子粘结剂可能可以降低修复体基牙的致龋风险；冠修复后的维吾尔族患者较汉族患者易患龋病。
목적：연구불동점결제、불동민족대고자관수복전후불동시기관변연간상균반중변형련구균적정식변화영향。방법：수궤선택하합제일마아행파은합금고자관수복적유오이족、한족환자30례，근거사용점결제적불동분위량조，채용형광정량취합매련반응측정관수복전후적변형련구균정량치，병관찰기균반지수。결과：수복후，량조적균반지수균교수복전명현승고（P<0.05）；여수복전비교，파리리자점결제조1、3개월적변형련구균상대정량치감소（P<0.05），취최산자점결제조1、3개월적변형련구균상대정량치증가（P<0.05）；동조지간，유오이족환자적변형련구균적상대정량치고우한족환자（P<0.05）。결론：파리리자점결제가능가이강저수복체기아적치우풍험；관수복후적유오이족환자교한족환자역환우병。
Objective To determine the different cements that impact on the changes of caries bacteria colonized on the edge of PFM crown before and after restoration for different nationalities. Methods Randomly select thirty Han and Uygur nationality patients whose mandibular first molar palladium needs to be repaired by the silver alloy PFM crown.And then, the patients are divided into two groups according to the different cements used in the repair.We measured the quantitative values of streptococcus mutans before and after restoration by using quantitative fluorescence of polymerase chain reaction.Simultaneously,we observed the plaque indices in repairing process. Results The PLI of the two groups were significantly increased compared with the PLI before repair (P<0.05).The quantitative value of S.mutans in Glass-ion cement group after restoration in one and three months decreased compared with the value before restoration(P<0.05).And the quantitative value increased in polycarboxylic cements group compared with the value before restoration(P<0.05). Although in the same group,the quantity of S.mutans of Uygur nationality patients was higher than Han nationality patients(P<0.05). Conclusion Glass-ion cement may be able to reduce the caries risk of repaired-abutment teeth,the Uygur nationality patients are more likely to suffer tooth decay than Han nationality patients.