What are types of gutta-percha?
Hence various forms of gutta-percha are available for usage and the current forms are solid core gutta-percha points, standardized, non- standardized, thermo mechanical compactible gutta-percha, thermo plasticized gutta- percha, solid core system, injectable form, and medicated gutta-percha.
What is gutta-percha in dentistry?
Gutta-percha is a material used to fill a tooth after a root canal procedure. Gutta-percha, a plastic substance from a Malaysian tree called a percha tree, is used as a permanent filling in root canals.
What are the properties of gutta-percha?
Table 3
Physical properties | Average values |
---|---|
Tensile strength | 1700-3000 psi |
Elastic modulus | 15,500-28,000 psi |
Flexibility | 0.07-0.12 in/lb |
Elongation (%) | 170-500 |
What is gutta-percha structure?
Chemically, gutta-percha is a polyterpene, a polymer of isoprene, or polyisoprene, specifically (trans-1,4-polyisoprene). The cis structure of polyisoprene is the common latex elastomer.
What is gutta-percha material?
Gutta-percha is purified, coagulated latex obtained from trees of the genera Palaquium and Payena (Sapotaceae), which are found both wild and cultivated in Malaysia and Indonesia. The method of collection resembles that used for rubber but the latex flows less readily.
When was gutta-percha used?
Gutta-percha made its appearance in dentistry in the mid-1800s, when it was first used for filling cavities.
Where is gutta-percha found?
Gutta-percha is purified, coagulated latex obtained from trees of the genera Palaquium and Payena (Sapotaceae), which are found both wild and cultivated in Malaysia and Indonesia.
How was gutta-percha extracted?
The milky white liquid was known as gutta percha, and it was extracted by crushing the tree’s leaves under granite boulders, then fashioned into blocks and stamped with the facility’s name.
Why gutta-percha is radiopaque?
The absence of barium sulfate in the gutta-percha cones of these trademarks may be related to the lower radiopacity (20,21). Barium is a chemical element with atomic number greater than Zinc and, thus, barium sulfate (BaSO4) absorbs X-rays faster than zinc oxide, providing high radiopacity to the material (22).
What is the source of gutta-percha?
Who invented gutta-percha?
Gutta Percha Company
Industry | Manufacturing |
---|---|
Founders | Charles Hancock Henry Bewley |
Defunct | April 1864 |
Fate | Merged with Glass, Elliot & Co. to become the Telegraph Construction and Maintenance Company |
Successors | Telegraph Construction and Maintenance Company British Insulated Callender’s Cables |
Who discovered gutta-percha?
Dr. William Montgomerie
At slightly lower temperatures, around 60°C, it can easily be cut whilst at room temperature it reverts to a hard material. It is generally believed that a British surgeon, Dr. William Montgomerie, was the first person to introduce the Western world to gutta percha in 1843.
When was gutta-percha first used?
What color is gutta percha?
Gutta-percha White color has the smallest diameter while black the greatest. There are various techniques of placing gutta-percha inside root canals : The standard endodontic technique involves inserting a gutta-percha cone (or a “point”) into the cleaned-out root canal along with a sealing cement.
Who invented gutta percha?
Which polymer is known as gutta-percha?
polyisoprene
Gutta-percha, chemically, is a polyterpene which is a polymer of isoprene, or polyisoprene and to be specific, trans-1,4-polyisoprene.
What color is gutta-percha?
Is gutta-percha natural?
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 the composition of gutta percha in dentistry?
Dental gutta percha composition: matrix gutta percha: 20% filler zinc oxide: 66% radiopacifier heavy metal sulfates: 11% plasticizer waxes and/or resins: 3%
What are the uses of gutta percha?
Table 4Merits and Demerits of gutta percha. OTHER USES OF GUTTA-PERCHA Assessment of pulp status Thermal stimulation is a standard means of assessing the vitality of teeth and hot GP has conventionally been the most popular.
What are the different types of gutta percha points?
Solid core gutta percha points: Available as standardized and non- standardized points ( beta phase). Standardized points: these are manufactured in coherence to instrument taper and apical gauge.
Can gutta percha be removed from root canal?
When required gutta percha can be easily removed from root canal. Adaptation to root apex: apical seal is of prime importance in obturation, which is achieved by using gutta percha, either in cones or warm, thermoplasticized form.