DYE MICRODROP-ASSISTED LASER FOR DENTISTRY

用于牙科的染料微滴辅助激光

• 批准号: 3495432
• 负责人: Donald Hayes
• 金额: $ 5万
• 依托单位: MICROFAB TECHNOLOGIES, INC.
• 依托单位国家: 美国
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1993-12-15
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3495432
• 关键词: cementum; dental caries; dentin; dentistry; digital imaging; dyes; heat; histology; human tissue; laser therapy; light microscopy; method development; morphology; optical polarization; optics; photosensitizing agents; phototherapy; scanning electron microscopy; tooth enamel

This proposal concerns the development of a new method for etching, contouring, and cavitating teeth. The method consists of microdispensing a photoabsorptive dye onto the surface of tooth then focusing a laser beam on the dye spot, which is 75-200mum in diameter. by the appropriate choice of photo-absorptive dye and laser wavelength, the system can be tuned for the optimal transfer of energy from the laser to the tooth. Thus, ablation can be achieved without photoacoustic or thermal damage to underlying tissue. In the proposed dental hard-tissue model, a dye microdispenser and a laser-aiming optic are combined in a single, compact handpiece. The microdispenser and the laser are aligned together, so that the operator can dispense microdroplets of fluid and deliver pulses of laser irradiation simultaneously on a single spot. The purpose of the present research is to evaluate various laser-dye combinations for controlled ablation of enamel, dentin, and cementum as a prelude to the manufacture of a prototype dental ablation tool.

本发明涉及一种新的蚀刻方法的开发， 轮廓和空洞的牙齿 该方法包括微分配 将光吸收染料涂在牙齿表面， 光束照射在直径为75- 200 μ m的染料斑点上。 由适当的 选择光吸收染料和激光波长，系统可以 调整以使能量从激光到牙齿的最佳传输。 因此，可以在没有光声或热损伤的情况下实现消融 到皮下组织 在所提出的牙齿硬组织模型中， 微分配器和激光瞄准光学系统结合在一个单一的，紧凑的 手柄。 微分配器和激光器是对齐的，所以 操作者可以分配流体的微滴并输送脉冲 激光同时照射在一个点上 的目的 目前的研究是评估各种激光染料组合， 牙釉质、牙本质和牙骨质的受控消融作为 原型牙科消融工具的制造。

项目成果

Dye-enhanced ablation of enamel by pulsed lasers.

通过脉冲激光对牙釉质进行染料增强消融。

• DOI: 10.1177/00220345940730120801
• 发表时间: 1994
• 期刊: Journal of dental research
• 影响因子: 7.6
• 作者: Jennett,E;Motamedi,M;Rastegar,S;Frederickson,C;Arcoria,C;Powers,JM
• 通讯作者: Powers,JM

Jet-assisted laser tools for tooth preparation.

用于牙齿预备的喷射辅助激光工具。

• DOI: 10.1089/clm.1994.12.153
• 发表时间: 1994
• 期刊: Journal of clinical laser medicine & surgery
• 作者: Arcoria,CJ;Frederickson,CJ;Judy,MM;Jennett,EL;Motamedi,M
• 通讯作者: Motamedi,M