Maximum resistance strength of the bone-bonding screw orthodontic anchorage / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 535-537, 2009.
Artigo
em Chinês
| WPRIM
| ID: wpr-274534
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the maximum resistance strength of a new orthodontic anchorage system named bone-bonding screw.</p><p><b>METHODS</b>Thirty-six self-designed two-section bone-bonding screws were bonded to the surface of tibia in 12 rabbits with N-2-butyl cyanoacrylate. The maximum resistance strength of the screws was tested immediately, 2 weeks, 4 weeks and 8 weeks after bonding, respectively.</p><p><b>RESULTS</b>The average maximum resistance strengths of the bone-bonding screws immediately, 2 weeks, 4 weeks and 8 weeks after bonding were 11.55 (8.96, 12.73), 6.04 (1.88, 10.57), 2.30 (0, 3.24), and 49.85 (20.70, 66.01) N, respectively. The difference between each group was statistically significant (P < 0.05). The failure rate of the bone-bonding screws was 17% (6/36).</p><p><b>CONCLUSIONS</b>The maximum resistance strength of the bone-bonding screw could suffice for orthodontics.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Parafusos Ósseos
/
Cianoacrilatos
/
Cimentos Dentários
/
Análise do Estresse Dentário
/
Procedimentos de Ancoragem Ortodôntica
Limite:
Animais
Idioma:
Chinês
Revista:
Chinese Journal of Stomatology
Ano de publicação:
2009
Tipo de documento:
Artigo
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