Volume 16, Issue 4 (9 2004)
jdm 2004, 16(4): 82-87 |
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Eftekhar B. The use of plastic models for teaching root canal cleansing and shaping. jdm 2004; 16 (4) :82-87
URL: http://jdm.tums.ac.ir/article-1-399-en.html
URL: http://jdm.tums.ac.ir/article-1-399-en.html
Abstract: (6778 Views)
The use of root canal models in endodontics education is of high importance. So, in this article a new method is presented that the students can produce these models with simple and low cost instruments.These plastic models are made of polyester which is low cost, available and has the approximate cutting properties of dentin. The best molds were disposable syringes due to their low cost, availability and producing smooth surfaces on polyester models. A spreader with desired curve and tapering is used for producing canals. Rockwell A hardness coefficient of polyester is "33", which is near dentin "31" and foreign made models "35.5". Since these polyester models can tolerate up to 280°C and have acceptable resistance to chloroform, all root canal therapy techniques such as vertical condensation and retreatments are practicable. Their transparency encourage the students to work on them. As a result, the use of these models is recommended for endodontics training.
Keywords: Producing training models, Root canal therapy education, Canal model, Plastic block, Polyester
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