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.
Article
Dans Chinois
| 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>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Vis orthopédiques
/
Cyanoacrylates
/
Ciments dentaires
/
Analyse du stress dentaire
/
Procédures d'ancrage orthodontique
Limites du sujet:
Animaux
langue:
Chinois
Texte intégral:
Chinese Journal of Stomatology
Année:
2009
Type:
Article
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