a Laser irradiation effects on structural, morphological and mechanical properties of e-max Press (Lithium discilicate) and its Fuzzy analysis for the applications in digital dentistry Laser irradiation affects and its fuzzy analysis for digital dentistry.
Main Article Content
Abstract
In the present study, the effects of laser irradiation on microstructure, morphology, and hardness of lithium discilicate (Li2Si2O5), commercially known as e.max Press are examined and the findings are simulated by using MATLAB. The polished discs were irradiated by Nd: YAG pulsed laser with 100 and 150 laser shots and the one disc was kept unexposed. XRD analysis confirmed the change in phase after laser irradiation however a decrease in dislocation line density was observed. The scanning electron micrographs showed that laser irradiation initially caused the upper surface to melt resulting in a rough surface. Further increase in laser shots produced cracks within the sample. Vickers hardness was employed to observe the hardness of non-irradiated and irradiated samples. An insignificant decrease in hardness (0.33%) was observed when the material was irradiated by 100 laser shots. The irradiated surface exhibited more roughness for bonding as compared to the unirradiated surface which could be beneficial in handling e.max Press during repair in direct dental applications. Moreover, the fuzzy analysis of the data would help in modern digital dentistry.
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Pakistan Journal Emerging Science and Technologies (PJEST) in collaboration with Govt. Islamia Graduate College Civil Lines Lahore, Pakistan is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
References
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