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Rotational Resistance of Surface-Treated Mini-implants

DC Field Value Language
dc.contributor.authorKim, Tae-Woo-
dc.contributor.authorKim, Seong-Hun-
dc.contributor.authorLee, Shin-Jae-
dc.contributor.authorCho, Il-Sik-
dc.contributor.authorKim, Seong-Kyun-
dc.date.accessioned2010-07-12T05:06:25Z-
dc.date.available2010-07-12T05:06:25Z-
dc.date.issued2009-09-
dc.identifier.citationAngle Orthodontist. 2009;79:899-907en
dc.identifier.issn0003-3219-
dc.identifier.urihttps://hdl.handle.net/10371/68593-
dc.description.abstractObjective: To test the hypothesis that there is no difference in the stability and resistance to rotational moments of early loaded sandblasted and acid-etched (SLA) mini-implants and those of machined-surface implants of the same size and shape.

Materials and Methods: A randomized complete block design was used in 12 skeletally mature male beagle dogs. Ninety-six orthodontic mini-implants were tested. Two types of implants were used: some had SLA surface treatment and some had machined surfaces without coating. After 3 weeks of healing, rotational moments of 150 g were applied. The success rates, maximum torque values, angular momentum, and total energy absorbed by the bone were compared. All values were subjected to mixed-model analysis to evaluate the influence of surface treatment, rotational force direction, and site of implantation.

Results: The maximum insertion torque and angular momentum of SLA implants were significantly lower than those of machined implants (P = .034, P = .039). The SLA implants had a significantly higher value for total removal energy than the machined implants (P = .046). However, there were no significant differences in total insertion energy, maximum removal torque, and removal angular momentum between the 2 groups. There was no significant difference between clockwise and counterclockwise rotation in all measurements.

Conclusion: SLA mini-implants showed relatively lower insertion torque value and angular momentum and higher total energy during removal than the machined implants, suggesting osseointegration of the SLA mini-implant after insertion.
en
dc.language.isoenen
dc.publisherAngle Orthodontisten
dc.subjectPartial osseointegrationen
dc.subjectMini-implanten
dc.subjectTorque valueen
dc.subjectRotational momenten
dc.subjectAngular momentumen
dc.titleRotational Resistance of Surface-Treated Mini-implantsen
dc.typeArticleen
dc.contributor.AlternativeAuthor김태우-
dc.contributor.AlternativeAuthor김승훈-
dc.contributor.AlternativeAuthor이신재-
dc.contributor.AlternativeAuthor조일식-
dc.contributor.AlternativeAuthor김승균-
dc.identifier.doi10.2319/090608-466.1-
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