Mechanical and microstructural properties of fixation systems used in oral and maxillofacial surgery.
Oral Maxillofac Surg
; 20(1): 85-90, 2016 Mar.
Article
em En
| MEDLINE
| ID: mdl-26563099
OBJECTIVES: This paper aims to evaluate in vitro the mechanical and microstructural properties of internal fixation systems used in oral and maxillofacial surgeries. MATERIALS AND METHODS: Four brands of internal fixation systems (screws and 4-hole straight plates) were selected and assigned to four groups: G1 Leibinger®, G2 Tóride®, G3 Engimplan®, and G4 Medartis®. The systems were submitted to Vickers hardness testing, metallographic and interstitial elements chemical composition analyses. Data were submitted to ANOVA and Tukey's test for statistical analysis. RESULTS: Plates in groups 1, 2, and 3 showed similar microstructure and mechanical properties, different from those in G4 revealing larger grains. In all groups, the screws showed similar microstructure, with uniform arrangement and size of grains; the screws showed higher hardness values than those observed for the plates. CONCLUSIONS: The results indicate that all materials tested are adequate for use in oral maxillofacial surgeries.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Placas Ósseas
/
Parafusos Ósseos
/
Teste de Materiais
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Procedimentos Cirúrgicos Bucais
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Fixação Interna de Fraturas
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Testes de Dureza
Limite:
Humans
Idioma:
En
Revista:
Oral Maxillofac Surg
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Alemanha