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The aim of this study is to evaluate the microleakage resultant from; Silorane resin composite restorations in primary teeth Prepared Using Burs And Er:YAG Laser with or without using additional etching.
This study aimed to test the efficiency of debonding porcelain laminate veneers (PLV) by using two application modes of Er:YAG laser (contact and non-contact mode), and testing the change in dental pulp temperature for both application modes. Sixt een extracted, non-carious human maxillary premolars, prepared for receiving PLV, which fabricated of e.max and bonded by light cured resin cement. They divided into two groups, each of them had 8 samples based on the application mode; group A with noncontact mode, and group B with contact mode. Veneers of both groups debonded by the same laser parameters (360mJ, 15Hz) during loading of a 20newton force on a specially fabricated cervical margin of veneers. Debonding time and change of temperature was recorded, then entered into SPSS V.19 and T-test for independent samples was applied. All veneers were debonded, samples of non-contact mode group had much lower debonding time (12.6 second) than contact mode samples (96.3 second), but with higher change of temperature in non-contact (4.2 centigrade) than in contact mode (2.9 centigrade).p value was much less than 0.05%. Within limits of this study, we can conclude that non-contact application mode was more efficient in reducing debonding time than contact application mode at same laser energy and frequency parameters, but with a higher change in pulp temperature.
The aim of this study is to evaluate the healing after apicectomy by using two different techniques. And to evaluate the effect of MTA as a retrograde filling material and also the Er:YAG laser as a tool for resecting the apex, and the influence of them in the healing.
Many methods are used to treat Periodontitis such as scaling and root planing (SRP) with hand instruments, Sonic and Ultrasonic instruments. Recently, lasers are used in periodontal. The aim of the study is to compare the Efficiency of Er:YAG Laser Combined with Scaling and Root Planing in Chronic Periodontitis Treatment.
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