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Sedative material placed over exposed or nearly exposed pulp 1) crown 2) root 3) restoration 4) pulp cap 5) pulp chamber Pulpal dentin junction. 1) outside tooth/enamel 2) dentin tubule 3) dentin 4) odontoblastic process 5) predentin 6) odontoblast 7) capillaries 8) fibroblasts 9) nerve 10) artery/vein 11) cell-rich zone 12) cell-poor zone 13) pulp chamber
The Cap-0 is the base cap structure, however, the first and second transcribed nucleotides can also be 2' O-methylated, leading to the Cap-1 and Cap-2 structures, respectively. This is more common in higher eukaryotes and thought to be part of the innate immune system to recognize mRNAs from other organisms. [7]
The attachment of these capping/stabilizing agents slows and eventually stops the growth of the particle. [5] The most common capping ligands are trisodium citrate and polyvinylpyrrolidone (PVP), but many others are also used in varying conditions to synthesize particles with particular sizes, shapes, and surface properties.
When the root is incompletely formed in adolescents and an infection occurs, apexification can be performed to maintain the tooth in position as the roots develop. In case of non-vital pulp: 1. Isolate the tooth with a rubber dam 2. perform root canal treatment. 3. Mix MTA and insert it to the apex of the tooth, creating a 3 mm thickness of ...
The NAD+ 5' cap has been observed in bacteria, [3] contrary to the long-held belief that prokaryotes lacked 5'-capped RNA, [4] as well as on the 5' cap of eukaryotic mRNA, [5] in place of the m7G cap. This modification also potentially allows for selective degradation of RNA]within prokaryotes as different pathways are involved in the ...
The O 6 modifications are rapidly removed by treatment with the capping reagent as long as the capping step is performed prior to oxidation with I 2 /water. The synthesis of oligonucleotide phosphorothioates (OPS, see below) does not involve the oxidation with I 2 /water, and, respectively, does not suffer from the side reaction described above.
They are commonly used as pulp capping agents and lining materials for silicate and resin-based filling materials. [3] Calcium-silicate liner used as a pulp capping material. It is usually supplied as two pastes, a glycol salicylate and another paste containing zinc oxide with calcium hydroxide. On mixing, a chelate compound is formed.
When translationally repressed or marked for decay by various mechanisms the 5' cap is bound by the mRNA decapping enzyme DCP2. A host of proteins accompany it including UPF1, UPF2, UPF3A, Dcp1, Dhh1, XRN1, and others. The decapping enzyme removes the 5' cap leading to destruction of the message. [4]