Effect of Different Fiber Reinforcement Strategies on the Fracture Strength of Composite Resin Restored Endodontically Treated Premolars
| Autor: | Soodabeh Kimyai, Hafez Vahedpour, Mahmoud Bahari, Mohammad Ali Mohammadi Torkani, Ayda Savadi Oskoee, Mehdi Abed Kahnamoui, Narmin Mohammadi |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Orthodontics
Fiber reinforcement Tooth Nonvital Universal testing machine Materials science Composite number Positive control Buccal administration Composite Resins Crosshead Flexural strength stomatognathic system Pediatrics Perinatology and Child Health Fiber General Dentistry Post and Core Technique |
| Zdroj: | Pesquisa Brasileira em Odontopediatria e Clínica Integrada, Volume: 19, Article number: e4465, Published: 31 OCT 2019 |
| Popis: | Objective: To compare the effect of three different fiber reinforcement strategies on the fracture strength of composite resin restored endodontically treated premolars. Material and Methods: Seventy-two sound human premolars extracted for orthodontic reasons were divided into 6 groups (n=12) after endodontic treatment. Group 1: intact teeth (positive control); Group 2: endodontically treated teeth without restoration (negative control); Group 3: composite resin restoration; Group 4: placement of fibers at occlusal position; Group 5: splinting the buccal and palatal walls with horizontal fiber posts; Group 6: placement of fibers at the occlusal position after splinting the buccal and palatal walls with horizontal fiber posts. Then fracture strength was measured at a crosshead speed of 0.5 mm/min in a universal testing machine. Data were analyzed using one-way ANOVA and post hoc Tukey tests at α=0.05. Results: There were significant differences between the negative and positive control groups (p0.05). Conclusion: Fiber insertion had no additional reinforcing effect on the fracture strength following composite resin restoration. |
| Databáze: | OpenAIRE |
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