Effect of Different Fiber Reinforcement Strategies on the Fracture Strength of Composite Resin Restored Endodontically Treated Premolars
Pesqui. bras. odontopediatria clín. integr
;
19(1): 4465, 01 Fevereiro 2019. ilus, tab
Artigo
em Inglês
| LILACS, BBO
| ID: biblio-998270
ABSTRACT
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 (p<0.001) and between the negative control group and all the other study groups (p<0.001). However, there were no statistically significant differences between the positive control group and all the experimental groups and between the experimental groups (p>0.05). Conclusion: Fiber insertion had no additional reinforcing effect on the fracture strength following composite resin restoration.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Resistência à Tração
/
Dente Pré-Molar
/
Teste de Materiais
/
Resinas Compostas
/
Dente não Vital
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Pesqui. bras. odontopediatria clín. integr
Assunto da revista:
Odontologia
Ano de publicação:
2019
Tipo de documento:
Artigo
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