CAJ | 학술논문

目的：评价巩固治疗在活髓牙夜间脱色（ NGVB）中维持美白效果的影响。方法经过筛选的50位变色牙患者被随机均分为两组接受16％过氧化脲NGVB治疗。实验组在常规NGVB治疗后每个月巩固治疗1次，巩固12次，对照组则仅接受常规的NGVB漂白治疗。用VITALESCENCE美学修复比色板比较牙齿漂白前后的色阶变化，追踪2年后，再次评价漂白临床效果。结果实验组美白有效率与2年前相比无明显差异而对照组则下降明显。结论巩固治疗能够减少美白后效果反弹，经济实惠，操作简单，值得在NGVB治疗后推广。
목적：평개공고치료재활수아야간탈색（ NGVB）중유지미백효과적영향。방법경과사선적50위변색아환자피수궤균분위량조접수16％과양화뇨NGVB치료。실험조재상규NGVB치료후매개월공고치료1차，공고12차，대조조칙부접수상규적NGVB표백치료。용VITALESCENCE미학수복비색판비교아치표백전후적색계변화，추종2년후，재차평개표백림상효과。결과실험조미백유효솔여2년전상비무명현차이이대조조칙하강명현。결론공고치료능구감소미백후효과반탄，경제실혜，조작간단，치득재NGVB치료후추엄。
Objective To evaluate the clinical efficacy of an enhanced therapy after night guard vital bleaching to maintain a longer whitening effect .Methods Fifty pre-selected patients with discolored teeth were randomly and evenly divided into 2 groups .The treatment group received one enhanced therapy every month after night guard vital bleaching,a total of 12 times.The control group was treated with NGVB only .Vitalescence Esthetic Restorative Masters Shade Guide was used to record the change of color and help evaluate the lightening efficacy .Two groups were followed up for two years and the lightening efficacy was evaluated again by then .Results Two years later ,the treatment group's bleaching efficacy stayed the same as two years ago ,while that of control group dropped greatly .Conclusion The en-hanced therapy could greatly reduce the rebounce of discoloration .It is economical and practical ,easy to operate ,and is highly recommended to be used along with NGVB .