Lima Darlon Martíns, Tonetto Mateus Rodrigues, de Mendonça Adriano Augusto Melo, Elossais André Afif, Saad José Roberto Cury, de Andrade Marcelo Ferrarezi, Pinto Shelon Cristina Souza, Bandéca Matheus Coelho
Professor, Postgraduation in Dentistry, Federal University of Maranhão São Luis, MA, Brazil.
PhD Student, Department of Restorative Dentistry, São Paulo State University, Araraquara, São Paulo, Brazil e-mail:
J Contemp Dent Pract. 2014 May 1;15(3):283-7. doi: 10.5005/jp-journals-10024-1529.
Ideally projected to be applied on soft tissues, infrared lasers were improved by restorative dentistry to be used in hard dental tissues cavity preparations--namely enamel and dentin. This paper evidentiates the relevant aspects of infrared Erbium laser's action mechanism and its effects, and characterizes the different effects deriving from the laser's beams emission. The criteria for use and selection of optimal parameters for the correct application of laser systems and influence of supporting factors on the process, such as water amount and its presence in the ablation process, protection exerted by the plasma shielding and structural factors, which are indispensable in dental tissues cavity preparation related to restorative technique, are subordinated to optical modifications caused by the interaction of the energy dissipated by these laser light emission systems in the targeted tissue substrate.
Differences in the action of infrared Erbium laser system in regard to the nature of the ablation process and variations on the morphological aspects observed in the superficial structure of the target tissue irradiated, may be correlated to the structural optical modifications of the substrate produced by an interaction of the energy propagated by laser systems.
理想情况下，红外激光预计应用于软组织，修复牙科对其进行了改进，使其可用于硬牙组织的窝洞制备，即牙釉质和牙本质。本文阐述了红外铒激光作用机制及其效果的相关方面，并描述了激光束发射产生的不同效果。激光系统正确应用的使用标准和最佳参数选择，以及诸如水量及其在消融过程中的存在、等离子体屏蔽所施加的保护和结构因素等支持因素对该过程的影响，这些在与修复技术相关的牙组织窝洞制备中不可或缺的因素，都从属于这些激光发射系统在目标组织基质中耗散的能量相互作用所引起的光学变化。
红外铒激光系统在消融过程性质方面的作用差异，以及在被照射目标组织表面结构中观察到的形态学方面的变化，可能与激光系统传播的能量相互作用所产生的基质结构光学变化相关。
