Effects of force magnitude on relapse: An experimental study in rabbits

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dc.authoridErsoz, Mustafa/0000-0002-9409-9157
dc.authoridOktay, Husamettin/0000-0001-7862-2983
dc.authoridKILIC, Nihat/0000-0002-1753-1380
dc.authorwosidErsoz, Mustafa/A-3007-2019
dc.authorwosidOktay, Husamettin/F-5235-2012
dc.contributor.authorKilic, Nihat
dc.contributor.authorOktay, Husamettin
dc.contributor.authorErsoz, Mustafa
dc.date.accessioned2024-08-04T20:32:53Z
dc.date.available2024-08-04T20:32:53Z
dc.date.issued2011
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIntroduction: The aims of this study were to investigate the effects of 2 force levels on the amount of relapse and to determine whether there is a relationship between the rates of tooth movement and relapse. Methods: Approximately 20-g (group I) and 60-g (group II) forces were applied to the maxillary central incisors of 25 young adult (14 weeks of age) New Zealand female rabbits. Active tooth movement lasted 20 days. Then, the appliances were removed, and the incisors were released. The distance between the incisors was measured daily from the midlevels of the crowns by using a digital caliper during the active phase of tooth movement for 20 days, and then relapse was measured at the same level for 37 days. Analysis of variance and the Bonferroni multiple range test were used for statistical analyses. Results: After active tooth movement, the mean total opening amounts were 3.98 +/- 0.59 mm in group I and 4.82 +/- 0.82 mm in group II, and the mean difference was approximately 0.8 mm. A rapid relapse was observed on the initial days in both groups, and its rate decreased with time. Significant relapse was observed in the first 5 and 8 days of the experiment in 20-g and 60-g force groups, respectively. The relapse in group II was significantly greater than in group I only on the first day of experiment. Statistically significant correlations were found between total tooth movement and relapse (R=0.896, P<0.001). Conclusions: These results showed a close relationship between the amount of relapse and orthodontic force magnitude. Greater relapse occurred during the initial days after appliance removal, and this indicates that retention appliances are needed immediately after the removal of orthodontic appliances. (Am J Orthod Dentofacial Orthop 2011;140:44-50)en_US
dc.identifier.doi10.1016/j.ajodo.2009.12.035
dc.identifier.endpage50en_US
dc.identifier.issn0889-5406
dc.identifier.issn1097-6752
dc.identifier.issue1en_US
dc.identifier.pmid21724086en_US
dc.identifier.scopus2-s2.0-79960015082en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage44en_US
dc.identifier.urihttps://doi.org/10.1016/j.ajodo.2009.12.035
dc.identifier.urihttps://hdl.handle.net/11616/95375
dc.identifier.volume140en_US
dc.identifier.wosWOS:000292304100023en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherMosby-Elsevieren_US
dc.relation.ispartofAmerican Journal of Orthodontics and Dentofacial Orthopedicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectExperimental Tooth Movementen_US
dc.subjectAlveolar Bone Turnoveren_US
dc.subjectPeriodontal-Ligamenten_US
dc.subjectMaxillary Expansionen_US
dc.subjectOrthodontic Relapseen_US
dc.subjectTransseptal Fibersen_US
dc.subjectBeagle Dogsen_US
dc.subjectRetentionen_US
dc.subjectRatsen_US
dc.subjectRemovalen_US
dc.titleEffects of force magnitude on relapse: An experimental study in rabbitsen_US
dc.typeArticleen_US

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