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Palaquium gutta. Gutta-percha is a tree of the genus Palaquium in the family Sapotaceae, which is primarily used to create a high-quality latex of the same name. The material is rigid, naturally biologically inert, resilient, electrically nonconductive, and thermoplastic, most commonly sourced from Palaquium gutta; it is a polymer of isoprene which forms a rubber-like elastomer.
Gutta percha can be removed mechanically (use of Gates Glidden), [9] thermally (use of System B Tip), [10] and chemically (use of chemical solvents, however this method is not advocated nowadays due to difficulty in controlling the depth of softening) [9] The space that exists coronal to the remaining gutta percha, called the post space, is now ...
Charles Stent (1807–1885) was a 19th-century English dentist notable for his advances in the field of denture making.. In 1847, English dentist Edwin Truman (1819–1905) introduced gutta-percha as a material for making dental impressions; however, this was unsatisfactory for several reasons, including its tendency to distort upon removal from the patient's mouth, and to shrink upon cooling.
The Gutta Percha Company was an English company formed in 1845 to make a variety of products from the recently introduced natural rubber gutta-percha. Unlike other natural rubbers , this material was thermoplastic allowing it to be easily moulded .
Some natural rubber sources, such as gutta-percha, are composed of trans-1,4-polyisoprene, a structural isomer that has similar properties. Natural rubber is an elastomer and a thermoplastic. Once the rubber is vulcanized, it is a thermoset. Most rubber in everyday use is vulcanized to a point where it shares properties of both; i.e., if it is ...
Xylene is used in the laboratory to make baths with dry ice to cool reaction vessels, [17] and as a solvent to remove synthetic immersion oil from the microscope objective in light microscopy. [18] In histology, xylene is the most widely used clearing agent. [19] Xylene is used to remove paraffin from dried microscope slides prior to staining.
Worldwide, chloroform is also used in pesticide formulations, as a solvent for lipids, rubber, alkaloids, waxes, gutta-percha, and resins, as a cleaning agent, as a grain fumigant, in fire extinguishers, and in the rubber industry. [37] [38] CDCl 3 is a common solvent used in NMR spectroscopy. [39]
3. Mix MTA and insert it to the apex of the tooth, creating a 3 mm thickness of plug. 5. Fill the canal with sealer and gutta percha. Alternatively, revascularization techniques are being used where an antibiotic is locally administered. Later a blood clot is formed in the canal and a coronal plug of MTA is placed. Apexogenesis (Vital pulp)