Selective ablation of surface enamel caries with a pulsed Nd:YAG dental laser
Selective ablation of surface enamel caries with a pulsed Nd:YAG dental laser
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DOI：
10.1002/lsm.10052
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发表时间：
2002-01-01
影响因子：
2.4
通讯作者：
Myers, T
中科院分区：
文献类型：
--
作者：
Harris, DM;White, JM;Myers, T
背景和目的：来自脉冲 Nd:YAG 牙科的高强度红外光。激光会被龋齿牙釉质吸收，而不会被健康牙釉质吸收。因此，该系统具有选择性去除表面牙釉质龋齿的潜力。临床程序的安全性和有效性在三所牙科学校的两组临床试验中进行了评估。使用 FTIR 光谱法评估选择性消融。研究设计/材料和方法：龋齿病变被随机分配至钻孔或激光治疗。牙髓诊断、牙釉质表面状况、制备和修复体均由盲法评估人员进行评估。在研究 L 中，计划拔除的 104 颗第三磨牙的表面龋齿被去除。治疗后一周对牙齿进行临床评估、拔除并对牙髓进行组织学检查。在研究 11 中，90 名患者的 374 颗牙齿上有 462 个病变，被随机分配接受激光或钻孔治疗，并随访 6 个月。结果：脉冲 Nd:YAG 激光去除表面牙釉质龋齿被证明是安全有效的。在所有情况下都去除了龋齿。没有出现不良事件，牙髓活力的临床和组织学评估均未显示异常。与激光组相比，钻头组中有更多的预备体进入牙本质（钻头=11，激光=1，P = 0.007）。结论：更保守的激光治疗去除了龋齿，但没有去除病变下方的健全牙釉质。研究发现脉冲 Nd:YAG 牙科激光对于去除表面龋齿既安全又有效。 (C) 2002 Wiley-Liss, Inc.
Background and Objective: High intensity infrared light from the pulsed Nd:YAG dental. laser is absorbed by carious enamel and not absorbed by healthy enamel. Consequently, this system has potential for selective removal of surface enamel caries. Safety and efficacy of the clinical procedure was evaluated in two sets of clinical trials at three dental schools. Selective ablation was evaluated with FTIR spectroscopy.Study Design/Materials and Methods: Carious lesions were randomized to drill or laser treatment. Pulp diagnosis, enamel surface condition, preparations, and restorations were evaluated by blinded evaluators. In Study L surface caries were removed from 104 third molars scheduled for extraction. One-week post-treatment teeth were evaluated clinically, extracted, and the pulp was examined histologically. In Study 11, 90 patients with 462 lesions on 374 teeth were randomized to laser or drill and followed for 6 months.Results: Pulsed Nd:YAG laser removal of surface enamel caries was demonstrated to be both safe and effective. Caries were removed in all conditions. There were no adverse events and both clinical and histological evaluations of pulp vitality showed no abnormalities. A significantly greater number of preparations in the drill groups vs. laser groups entered dentin (drill=11, laser=1, P = 0.007).Conclusion: The more conservative laser treatment removed the caries but not the sound enamel below the lesion. The pulsed Nd:YAG dental laser was found to be both safe and effective for surface caries removal. (C) 2002 Wiley-Liss, Inc.