Avaliação de Diferentes Compósitos na Resistência à Fratura de Núcleos de Preenchimento
| Autor: | Eduardo Shigueyuki Uemura, Eron Toshio Colauto Yamamoto, Andrey de Souza Setúbal Destro |
|---|---|
| Přispěvatelé: | Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2010 |
| Předmět: |
Engineering
Resinas compostas business.industry Composite number Composite resins Core (optical fiber) stomatognathic diseases stomatognathic system Flexural strength Fratura de dente Material resistance Resistência de materiais Pediatrics Perinatology and Child Health Composite material Telecommunications business General Dentistry Tooth fractures |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1983-4632 1519-0501 |
| DOI: | 10.4034/1519.0501.2010.0102.0008 |
| Popis: | Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:24:49Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:30:50Z : No. of bitstreams: 1 2-s2.0-77957969097.pdf: 231864 bytes, checksum: a349ca31431e6ad1f6efa624718e9316 (MD5) Made available in DSpace on 2014-05-27T11:24:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-10-21 Objective: To evaluate and compare the fracture strength of different composite resins used for core buildup. Method: Thirty-six bovine teeth were decoronated at the cervical third to standardize the length of specimens at 20 mm. Under constant irrigation, the canals were prepared with #5 Largo drills corresponding to the size and diameter of #3 Reforpost fiberglass post. The posts were cemented with Enforce resin sealer, being 16 mm inside the root canal and 4 mm outside the root canal, and the material was light-activated for 30 seconds at each side. The specimens were divided into 3 groups (n=12), in which cores (4 mm diameter and 5 mm high) were prepared from a prefabricated standard with three types of composite resins: Group 1: Z100 (3M), Group 2: Z250 (3M) and Group 3: P60 (3M). The specimens were fixed in a cylindrical device with an adaptor at 45o inclination. This device was adapted to a universal testing machine (EMIC) to simulate the force until fracture of the specimen. Data were subjected to ANOVA (p |
| Databáze: | OpenAIRE |
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