Jet-assisted laser tools for tooth preparation.
Jet-assisted laser tools for tooth preparation.
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用于牙齿预备的喷射辅助激光工具。
DOI：
10.1089/clm.1994.12.153
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Motamedi,M
中科院分区：
文献类型：
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作者：
Arcoria,CJ;Frederickson,CJ;Judy,MM;Jennett,EL;Motamedi,M
以前的口腔钙化组织激光消融术效果不佳，因为很难在表面上产生预期的效果而不伴随牙髓或骨质损伤。本研究的目的是表征一种新的模式消融牙齿使用氩和二极管激光器（488.5 nm，805 nm）结合重复放置特定的光吸收染料。在这种设计中，来自激光的能量（否则将被反射）耦合到牙齿-染料界面。将32个最近提取的人牙釉质样本切片并制备成3x 2x2矩形块，并用抛光点进行平滑。将两微升的染料液滴置于外釉质表面上，随后风干。然后用激光-染料组合烧蚀样品，产生约100-200 μm深的弹坑，并且没有可见的碳化。在没有染料应用的釉质样本上进行类似的辐照，并且没有显示出空穴或表面碳化。扫描电镜研究表明，在釉质表面形成的火山口的证据。在进一步研究这项技术之前，必须对激光参数进行优化，并结合染料的特定分配。
Previous oral calcified-tissue laser ablations have yielded inadequate results because of the difficulty in producing a desired effect on a surface without concomitant pulp or osseous damage. The purpose of this study was to characterize a new modality of ablating teeth using argon and diode lasers (488.5 nm, 805 nm) in combination with the repetitive placement of specific photoabsorptive dyes. In this design, energy from laser light, that would otherwise be reflected, is coupled to the tooth–dye interface. Thirty-two specimens of recently extracted human enamel were sectioned and prepared into 3x2x2 rectangular blocks and smoothed with a polishing point. Two-microliter droplets of dye were placed on the external enamel surface and subsequently air-dried. Specimens were then ablated with the laser-dye combinations, producing craters approximately 100–200 μm in depth and devoid of visual carbonization. Similar irradiations were performed on enamel specimens without dye application, and displayed no cavitation or surface carbonization. SEM studies showed evidence of crater formation within the enamel surface. Optimization of laser parameters integrated with specific dispensing of dye is necessary before this technique can be studied further.