LIBS in Dental Technology

LIBS can analyze chemical compositions of biological samples such as human bones, tissues, and fluids. LIBS can help detect excess or deficiency of minerals in tissues, teeth, nails, or bones, as well as toxic elements. In the same way, cancer detection is possible with LIBS and it can provide a surgical device that can detect and destroy tumor cells at the same time.

Example:

 

The teeth are in a constant chemical attack by microorganisms, which cause visible changes in structure and permanent damage requiring removal of the affected areas. As is known, this procedure is carried out by teams of aerators, causing pain, are invasive and circumferential areas affecting constituents. In recent years, the laser has been introduced as a means of removing decay, showing advantages as cleaning, selectivity, and decreased pain. An important improvement for this equipments would be having a monitoring system that accurately indicates the kind of tissue being removed. We propose the use of the LIBS (Laser-Induced Breakdown Spectroscopy) technique in real-time as a method of detection of diseased tissue. The chemical composition of healthy and diseased tissue was been analyzed, establishing clear differences in their elemental compositions, and allowing identification of the tissue. The excitation source is a laser device emitting trains of pulses whose intensity and temporal spacing increase the excitation of the chemical species and consequently improve the signal-noise ratio. For its compactness and low cost, the device would be easily integrated into a dental laser (system.

(http://www.repositoriodigital.ipn.mx/handle/123456789/15735)