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Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
EISSN: 1677-3225
Vol. 7, No. 25, 2008, pp. 1563-1565
Bioline Code: os08019
Full paper language: English
Document type: Research Article
Document available free of charge

Brazilian Journal of Oral Sciences, Vol. 7, No. 25, 2008, pp. 1563-1565

 en In vitro evaluation of torsional strength of orthodontic mini-implants
Pithon, Matheus Melo; dos Santos, Rogério Lacerda; D’Agostini Derech, Carla; Elias, Carlos Nelson; de Oliveira Ruellas, Antônio Carlos & Nojima, Lincoln Issamu


Aim: The aim of this study was to assess the maximum torsional strength of orthodontic mini-implants of different diameters.
Methods: Eighteen mini-implants measuring 10 mm in length were divided into three groups (n = 6). G1, G2 and G3 had mini implants of 1.2, 1.4, and 1.6 mm in diameter, respectively. Mini-implants manufactured by SIN (Sistema de Implantes, São Paulo, SP, Brazil) were used in all groups.
Results: The results showed statistically significant differences (p<0.0001) among the groups. The torsional strength was found to be higher in the mini-implants from the same manufacturer that had greater diameter (G3>G2>G1).
Conclusion: Mini-implants with greater diameter should be used if increased torque is needed during orthodontic procedures.

Mini-implants, anchorage, orthodontics.

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