What are the ingredients in gutta percha?
What are the ingredients in gutta percha?
Gutta-percha endodontic filling points were found to contain approximately 20% gutta-percha (matrix), 66% zinc oxide (filler), 11% heavy metal sulfates (radiopacifier), and 3% waxes and/or resins (plasticizer).
Is gutta percha toxic?
Pure raw gutta-percha was non- toxic but zinc oxide, which is the major component of gutta- percha points, showed high toxicity. The toxicity of gutta- percha points was attributed to leakage of zinc ions into the fluids.
What can be used instead of gutta percha?
In the past 4 years, Resilon, and its other brand names Resinate (Figure 4) and RealSeal, have been shown to be an effective alternative to gutta-percha for filling the roots of endodontically treated teeth.
Is gutta percha natural or synthetic?
Gutta Percha is a natural polymer, chemically the same as natural rubber, however, it has a different molecular shape, giving it different properties.
What is MTA dental material?
Abstract. Mineral trioxide aggregate (MTA), composed mainly of tricalcic silicate, tricalcic alluminate, bismuth oxide, is a particular endodontic cement. It is made of hydrophilic fine particles that harden in the presence of dampness or blood.
Is there latex in gutta-percha?
Gutta-percha is the coagulated latex of the two trees, which are in the same botanical family as the rubber tree Hevea brasilienisis.
Does gutta percha contain cadmium?
Cadmium content in all brands ranged from 2.8 to 10 ppm with a mean of 6.3 ± 3.2 (s.d.) ppm, which is equivalent to 0.10 µg Cd/ gutta percha point (range 0.03-0.30 µg). If four points are used per root canal, the total cadmium will be about 0.4 µg.
Does gutta percha have mercury?
Root Canal Therapy (RCT): involves removing the nerve, blood vessels, and lymph tissue from within the tooth and then sealing the empty chamber with a filling substance called gutta percha (may contain cadmium and mercury salts).
Is gutta-percha still used?
Gutta-percha remained an industrial staple well into the 20th century, when it was gradually replaced with superior synthetic materials such as Bakelite, though a similar and cheaper natural material called balatá was often used in gutta-percha’s place.
Is gutta-percha biocompatible?
Gutta-percha is considered to have acceptable biocompatibility with a low degree of toxicity, a view based on findings in animal studies involving implanted pieces of gutta-percha (Spångberg 1969a, Wolfson & Seltzer 1975).
How do you make polyisoprene?
Polyisoprene is made by solution polymerization of isoprene (2-methyl-l,3-butadiene). The isoprene monomer, the structural unit of the natural rubber polymer, can polymerize in four isomeric forms: trans 1,4 addition, cis 1,4 addition, 1,2 addition, leaving a pendant vinyl group, and 3,4 addition.
What is polyisoprene used for?
Gum polyisoprene compounds are used in rubber bands, cut thread, baby bottle nipples, and extruded hoses, along with other such items. Polyisoprene that is mineral-filled finds applications in footwear, sponges, and sporting goods. Other important uses include medical/health applications and sealants and adhesives.