Dental crowns fabricated from modern ceramics inevitably retain tooling marks and minor crevices, especially at their cut and polished edges. Cutting fluids and other contaminants are also generally present, which can interfere with the bonding potential of the ceramic and can become biologically disadvantageous, as well as non-sterile. Radio Frequency Glow Discharge Treatment (RFGDT) is a recently introduced, novel cleaning and sterilization method for finishing ceramic crowns.
A continuation of fixed restorative prosthodontics I and the fabrication of cantilever and stress broken fixed dentures semi precision attachments, and all typed of pontic designs. Introduction to ceramics, metals, dental problems and their use in the fabrication of porcelain fused to metal restorations.
Lectures and practicals will include the principles of metal framework design for ceramo-metal restorations, the basics of porcelain build-up procedure, color mixing, shade matching and criteria of lab-prescriptions.
Introduction to the technique and procedures in the fabrication of the cast inlays, crowns and multi-unit fixed partial dentures; includes cast with removable dies, soldering, and crown for t non-vital teeth. Introduction to the use of acrylic resin crown.
Introduction to the criteria of normal occlusion, jaw positions and movements, the intermaxillary relations including centric and eccentric positions and determinants of mandibular movements. Lectures will provide knowledge of various patterns of occlusion as well as the importance of articulators in prosthetic appliances construction.
In the title N-Mannich bases, 3-(adamantan-1-yl)-4-(4-fluorophenyl)-1-
[(4-phenylpiperazin-1-yl)methyl]-4,5-dihydro-1H-1,2,4-triazole-5-thione
(C29H34FN5S) (I), and 3-(adamantan-1-yl)-4-(4-fluorophenyl)-1-{[4-(2-methoxyphenyl)
piperazin-1-yl]-methyl}-4,5-dihydro-1H-1,2,4-triazole-5-thione
(C30H36FN5OS) (II), fluorophenyl, adamantane and piperazine moieties are
linked to a planar triazole ring. There is an additional phenyl ring on the
piperazine ring in (I) and a methoxyphenyl ring in (II). In compound (I), the
The optimized molecular structure, vibrational wavenumbers, corresponding vibrational assignments of
2-[4-(4-phenylbutanamido)phenyl]-5-ethylsulphonyl-benzoxazole have been investigated experimentally and
theoretically using Gaussian09 software. The wavenumbers were assigned by potential energy distribution
and the frontier molecular orbital analysis is used to determine the charge transfer within the molecule. The
stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed
