半导体激光治疗活髓牙全冠牙体预备后牙本质敏感的临床观察  

Comparative study of semiconductor laser on postoperation hypersensitivity in vital teeth preparation for crown restoration

作　　者：李向新[1] 宋雅能[1] 

机构地区：[1]江苏省连云港市第一人民医院口腔科,222002

出　　处：《齐齐哈尔医学院学报》2008年第15期1809-1811,共3页Journal of Qiqihar Medical University

摘　　要：目的研究半导体激光治疗全冠牙体预备后牙本质敏感的临床效果。方法将60例患者共计99颗活髓牙经标准金属烤瓷全冠牙体预备后随机分为三组,其中激光组预备体采用半导体激光分区照射180s;脱敏剂组预备体使用MS-COAT脱敏剂脱敏2次;对照组不处理;然后均用间接法制作临时冠,氧化锌丁香油水门汀粘固。最后分别测试牙体预备后10天的冷诊NRS值、电刺激痛感觉阈值。结果激光组的冷诊NRS值(3.76±1.65)和电刺激痛感觉阈值(16.43±3.44)和脱敏剂组的冷诊NRS值(3.83±1.73)和电刺激痛感觉阈值(17.21±4.12)均小于对照组的冷诊NRS值(5.48±1.80)和电刺激痛感觉阈值(13.56±3.26),差异均有显著性(P<0.05),而激光组和脱敏剂组无统计学差异(P>0.05)。结论半导体激光能有效的治疗金属烤瓷全冠牙体预备后的牙本质敏感。Objective To evaluate the clinical effects of semiconductor laser on postoperation hypersensitivity in vital teeth preparation for crown restoration. Methods A total of 98 teeth from 60 patients with dentin hypersensitivity after vital tooth preparationwere for crown restoration were divided into three groups,and treated by the three different methods. Laser group was irradiation by semiconductor laser for 180s. Desensitizer group was daubed with MS-COAT for 2 times. No disposal served as control group. All prepared teeth were protect with temporary restorations, which were cemented with zinc oxide eugenol paste. Ten days later test NRS value by giving crymo- stimulus and thresholds of painful feeling by giving electric stimulationv. Results The NRS value and the thresholds of painful feeling of both laser group（3.76±1.65; 16.43±3.44） and desensitizer group（3.83±1.73;17.21±4.12） were significantly different from that of the control group（5.48± 1.80; 13.56 ± 1.26）. There was no significant difference between laser group and desensitizer group. Conclusions Semiconductor laser is an effective and convenient technique for treating postoperation hypersensitivity in vital teeth preparation for crown restoration.

关 键 词：牙本质过敏 半导体激光 MS-COAT 脱敏剂 义齿修复术 

分 类 号：R745.05[医药卫生—神经病学与精神病学] R780.2[医药卫生—临床医学]