What is alpha gutta-percha?
What is alpha gutta-percha?
Gutta-percha is a polymer found in two distinct crystalline forms, alpha and beta. Most gutta-percha cones available are in the beta form. The alpha form of gutta-percha is brittle at room temperature, but becomes gluey, adhesive and highly flowable when heated.
What is Thermoplasticized gutta-percha?
Abstract. Gutta percha is the most widely used material in root canal obturation because of its relative inertness, lack of toxicity and biocompatibility. The most common method of obturation using gutta percha is lateral condensation, which has several disadvantages.
What is accessory gutta-percha?
Product Description. Diadent® Accessory Gutta Percha Points provide a fast and reliable solution for root canal measuring and filling. They are Cadmium free, latex free, radiopaque and hand rolled. Completely seals the entire length of the canal.
What are the disadvantages of gutta-percha?
Gutta-percha can be plasticized with solvents such as chloroform, eucalyptol, and xylol. Disadvantages include shrinkage caused by evaporation, voids, the inability to control the obturating material, and irritation of periradicular tissues.
What is a gutta-percha cane?
Canes were made from the sap of trees, gutta percha, which is resinous gum of the the Payena and Palaquinium genus of trees growing close to the equator and found only in Borneo, Sumatra and Malacca. Gutta percha is the name for a set of trees noted for their latex, produced from the sap of these trees.
How strong is 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 McSpadden technique?
McSpadden Thermomechanical Compaction: With techniques that require heating techniques, the McSpadden technique uses instrument rotations of higher speeds to create controlled thermomechanical compaction for the gutta-percha and remove the problem of uncontrollable heat temperature.
Is gutta-percha still used?
Substitutes. 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.