Yu Chuan-Hang, Chang Yu-Chao
School of Dentistry, Chung Shan Medical University, Taichung, Taiwan; Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan.
School of Dentistry, Chung Shan Medical University, Taichung, Taiwan; Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan.
J Formos Med Assoc. 2014 Jun;113(6):388-91. doi: 10.1016/j.jfma.2013.02.013. Epub 2013 Apr 18.
Dentin hypersensitivity is a common symptomatic condition that causes discomfort and sometimes severe pain. The purpose of this study was to evaluate the clinical efficacy of the erbium-doped:yttrium, aluminum, and garnet (Er:YAG) laser treatment on cervically exposed hypersensitive dentin. Twenty patients with dentin hypersensitivity of caries-free teeth were selected. A visual analog scale (VAS) was used to measure dentin sensitivity in response to air stimulus. A 2-minute Er:YAG laser (energy level: 60 mJ/pulse; repetition rate: 2 Hz) was applied to cervically exposed hypersensitive dentin. After 4 weeks, the hypersensitive teeth were examined again, and the VAS score was measured again and recorded. No complications such as detrimental pulpal effects were observed. Eighteen participants reported significantly reduced dentin hypersensitivity 4 weeks after the laser desensitization treatment. The VAS scores measured 4 weeks after the Er:YAG laser desensitization treatment were significantly decreased as compared with those measured at the baseline (p < 0.05). In conclusion, the Er:YAG laser desensitization treatment can effectively reduce hypersensitivity of cervically exposed hypersensitive dentin.
牙本质过敏症是一种常见的症状性疾病，会引起不适，有时还会导致剧痛。本研究的目的是评估掺铒钇铝石榴石（Er:YAG）激光治疗颈部暴露的过敏牙本质的临床疗效。选取了20例无龋牙本质过敏症患者。使用视觉模拟评分法（VAS）测量对空气刺激的牙本质敏感性。将2分钟的Er:YAG激光（能量水平：60 mJ/脉冲；重复频率：2 Hz）应用于颈部暴露的过敏牙本质。4周后，再次检查过敏牙齿，并再次测量和记录VAS评分。未观察到诸如有害牙髓效应等并发症。18名参与者报告在激光脱敏治疗4周后牙本质过敏症明显减轻。与基线时测量的VAS评分相比，Er:YAG激光脱敏治疗4周后测量的VAS评分显著降低（p < 0.05）。总之，Er:YAG激光脱敏治疗可有效降低颈部暴露的过敏牙本质的过敏症状。
