Automated ablation of dental composite using an IR pulsed laser coupled to a plume emission spectral feedback system.

Automated ablation of dental composite using an IR pulsed laser coupled to a plume emission spectral feedback system.
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使用与羽流发射光谱反馈系统耦合的红外脉冲激光自动烧蚀牙科复合材料。

DOI:
10.1117/12.2256698
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发表时间:
2017
期刊:
Proceedings of SPIE--the International Society for Optical Engineering
影响因子:
--
通讯作者:
Fried,Daniel
Fried,Daniel
中科院分区:
--
文献类型:
--
作者:
Jang,AndrewT;Chan,KennethH;Fried,Daniel

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本研究的目的是组装一个激光系统,用于选择性地去除牙齿表面的牙科复合材料,这是可行的,为临床使用,包括光谱反馈系统,扫描系统,关节臂和临床手持件,并评估该系统的性能上提取的teen.MethodsTen提取的牙齿收集和小填充物被放置在每个牙齿的咬合面。一个临床系统的特点是CO2激光器工作在50 Hz和光谱光学反馈被用来消除复合材料。使用交叉偏振光学相干断层扫描(CP-OCT)确认取出结果该系统能够快速地从牙齿咬合面上的小制备物中去除复合物,平均釉质损失小于20 μm。结论我们已经证明,通过结合双光电二极管和检流计控制,光谱反馈可以成功地用于自动化复合物去除系统二氧化碳激光。此外,使用配准的OCT图像作为体积基准的可行方法。总体而言,本研究代表了光谱反馈在临床手机中的首次应用,并作为未来临床研究的基准。激光外科医学49:658-665,2017。 © 2017 Wiley Periodicals,Inc.
ObjectiveThe purpose of this study is to assemble a laser system for the selective removal of dental composite from tooth surfaces, that is feasible for clinical use incorporating a spectral feedback system, a scanning system, articulating arm and a clinical hand‐piece, and evaluate the performance of that system on extracted teeth.MethodsTen extracted teeth were collected and small fillings were placed on the occlusal surface of each tooth. A clinical system featuring a CO2laser operating at 50 Hz and spectral optical feedback was used to remove the composite. Removal was confirmed using a cross polarized optical coherence tomography (CP‐OCT) system designed for clinical use.ResultsThe system was capable of rapidly removing composite from small preparations on tooth occlusal surfaces with a mean loss of enamel of less than 20 μm.ConclusionWe have demonstrated that spectral feedback can be successfully employed in an automated system for composite removal by incorporating dual photodiodes and a galvanometer controlled CO2laser. Additionally, the use of registered OCT images presents as a viable method for volumetric benchmarking. Overall, this study represents the first implementation of spectral feedback into a clinical hand‐piece and serves as a benchmark for a future clinical study. Lasers Surg. Med. 49:658–665, 2017. © 2017 Wiley Periodicals, Inc.
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