The purpose of this article is to classify the types telescopic prostheses that protect natural teeth as an alternative traditional removable prostheses, and explain their advantages, disadvantages, indications clinical significance in order minimize problems dentures. Telescopic consist inner (primary) crown permanently cemented abutment outer (secondary) attached prosthesis. Primary crowns fr...

The purpose of this study was to evaluate and compare the microleakage and marginal discrepancy of ceramic crown-copings fabricated by three different CAD/CAM systems. Material and methods: Thirty extracted premolars were prepared for complete allceramic crowns with: total convergence 10-degree, 2 mm occlusal reduction, 4.5 mm height, 1.3 mm circular reduction and chamfer marginal preparation. ...

Land managers need cost-effective methods for mapping and characterizing forest fuels quickly and accurately. The launch of satellite sensors with increased spatial resolution may improve the accuracy and reduce the cost of fuels mapping. The objective of this research is to evaluate the accuracy and utility of imagery from the advanced spaceborne thermal emission and reflection radiometer (AST...

Background and Aim: The purpose of this study was to compare thermal stress on various restorative post and core materials generated by oral temperature changes using three dimensional finite element analysis. Materials and Methods: Three dimensional model of a mandibular right first premolar restored with a metal-ceramic crown and a dowel – core system was constructed. The thermal load applied...

We present the synthesis and characterization of (15-crown-5)BiI3 (1) ⋅ 0.5TIE (2), a halogen bonded adduct with tetraiodoethylene (TIE), typical bond donor. Single crystal structure analysis 2 suggests bonding interaction between crown ether complex TIE. The two compounds’ thermal, optical vibrational properties are investigated in comparison, differences pointing towards notable building bloc...