Vitale M C, Zaffe D, Botticell A R, Caprioglio C
Dept. of Paediatric Dentistry, University of Pavia, Pavia, Italy.
Eur Arch Paediatr Dent. 2011 Apr;12(2):90-2. doi: 10.1007/BF03262785.
To evaluate chemically the effects of diode laser on fluoride uptake before and after laser irradiation of enamel surfaces.
Crowns of 20 sound human teeth were halved and a 3 x 3 mm acid-resistant varnish uncovered window left for: A) no treatment; B) fluoride (Elmex gel); C) diode (fluoride + diode laser); D) diode (diode laser + fluoride). The dental surfaces were analysed using a fluoride ion-selective electrode, in order to evaluate the fluoride treatment in combination with a diode laser. Also, to investigate laser-induced compositional changes (contents in F(-)) in enamel before/after laser irradiation and topical fluoride application.
The mean ± SD of fluoride uptake of teeth of group A was 1.55 ± 0.89 mg/l. Mean fluoride uptake increased sevenfold after fluoride gel treatment: 10.51 ± 3.38 mg/l for group B, up to 15 times after gel and laser treatment: 23.62 ± 3.58 mg/l for group C and was 22.7 ± 4.60 mg/l for group D (diode laser before fluoride application). The Kruskal Wallis test indicated a statistically significant effect of fluoride uptake for all three treatments (p<0.001). The Student-Newman-Keuls multiple comparison test indicated a statistically significant increase of fluoride uptake before and after all treatments, and also a statistically significant difference for laser treatment versus fluoride gel. However, there was no statistically significance difference between laser groups.
There is an enhanced capability of lasers to increase fluoride uptake of enamel and providing protection to enamel surface from acid attack.
通过化学方法评估二极管激光对牙釉质表面激光照射前后氟摄取的影响。
将20颗健康人牙齿的牙冠对半切开，留下一个3×3毫米的耐酸清漆覆盖窗口用于：A）不处理；B）氟化物（艾美适凝胶）；C）二极管（氟化物+二极管激光）；D）二极管（二极管激光+氟化物）。使用氟离子选择性电极分析牙齿表面，以评估氟化物治疗与二极管激光联合使用的效果。此外，研究激光照射前后及局部应用氟化物后牙釉质中激光诱导的成分变化（F(-)含量）。
A组牙齿氟摄取的平均值±标准差为1.55±0.89毫克/升。氟凝胶处理后氟摄取平均值增加了7倍：B组为10.51±3.38毫克/升，凝胶和激光处理后增加了15倍：C组为23.62±3.58毫克/升，D组（氟化物应用前使用二极管激光）为22.7±4.60毫克/升。Kruskal Wallis检验表明，所有三种处理对氟摄取均有统计学显著影响（p<0.001）。Student-Newman-Keuls多重比较检验表明，所有处理前后氟摄取均有统计学显著增加，激光处理与氟凝胶之间也有统计学显著差异。然而，激光组之间没有统计学显著差异。
激光有增强牙釉质氟摄取的能力，并能保护牙釉质表面免受酸蚀。
