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
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-274534
Responsible library:
WPRO
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>
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Bone Screws
/
Cyanoacrylates
/
Dental Cements
/
Dental Stress Analysis
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Orthodontic Anchorage Procedures
Limits:
Animals
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2009
Document type:
Article