Irradiated Dentin Research Articles

The effect of laser irradiation on oral tissues

Lasers have been proposed for numerous dental applications. Research on laser irradiation of enamel has demonstrated structural changes that resulted in a decrease in acid dissolution of the enamel. Dentin irradiation produced changes in surface morphology that improved bonding of restorative resins. This article reviews the studies of the effects of laser irradiation on oral tissues.

An analysis of paramagnetic centers in irradiated dentin using electron spin resonance

The ESR spectra produced in irradiated dentin have been studied over a range of incident radiation energies from 50 kVp to 25 MVp. The behavior of the dentin ESR signal strength is similar to that of enamel as a function of the energy of the incident radiation. The magnitude of the dentin ESR signals are, however, up to 10 times smaller than the signals of dental enamel for a given radiation energy. The possible contributions of radiation interaction coefficients, chemical structure, and crystallite size to the differences in ESR spectra are discussed.

A Method for Assessing the Relative Abrasion of Prophylaxis Materials

A method for assessing the relative abrasion of prophylaxis materials is described. The method utilizes irradiated human enamel and dentin specimens, and treatments are performed using a simulated prophylaxis procedure. Results obtained with this method indicate that variations in treatment time, load, and cup speed may influence the relative abrasion.