Comparison of the force released by intermaxillary elastics used for different time periods

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dc.creatorAndressa Tribulato Lopes Nitrini
dc.creatorAdenilson Silva Chagas
dc.creatorKarina Maria Salvatore de Freitas
dc.creatorFabrício Pinelli Valarelli
dc.creatorRodrigo Hermont Cançado
dc.creatorRenata Cristina Gobbi de Oliveira
dc.creatorRicardo Cesar Gobbi de Oliveira
dc.date.accessioned2023-02-27T11:38:06Z
dc.date.accessioned2025-09-09T01:15:41Z
dc.date.available2023-02-27T11:38:06Z
dc.date.issued2019-12-01
dc.format.mimetypepdf
dc.identifier.doi10.5152/TurkJOrthod.2019.18022
dc.identifier.issn21489505
dc.identifier.urihttps://hdl.handle.net/1843/50390
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofTurkish Journal of Orthodontics
dc.rightsAcesso Aberto
dc.subjectOrthodontic appliances
dc.subjectMaterials testing
dc.subjectDental materials
dc.subjectElastomers
dc.subjectOrthodontics
dc.subjectMalocclusion angle class iii
dc.subjectMalocclusion angle class ii
dc.subject.otherElastomers
dc.subject.otherMaterials testing
dc.subject.otherDental materials
dc.titleComparison of the force released by intermaxillary elastics used for different time periods
dc.typeArtigo de periódico
local.citation.epage194
local.citation.issue4
local.citation.spage190
local.citation.volume32
local.description.resumoObjective: The objective of the present study was to compare the strength degradation of the force of intermaxillary elastic used for different periods. Methods: The sample included intermaxillary elastics used for 20 adult patients with bilateral Class II or III malocclusion in orthodontic treatment with fixed appliances, with a mean age of 27.25 years. Latex orthodontic elastics with 3/16 inch of diameter were used, with an average stretching of three times its diameter. The elastics were used in the same patient bilaterally for different periods, with each pair of elastics used for 1, 12, 24, and 48h. Thus, the sample consisted of 200 elastics, with 40 being used in each period (one pair used by each patient) and 40 new elastics without use tested as control. Elastics were tested using a universal testing machine, stretched with a velocity of 30 mm/min, and the force was evaluated in stretches of 15, 20, 25, and 30 mm. The degradation force was compared in the four different times of use and control by one-way ANOVA (analysis of variance) and Tukey tests. Results: There were significant differences among the groups in all evaluated stretches (15, 20, 25, and 30 mm). The control elastics presented higher average forces numerically and statistically significant for all tested times, except for the elastic used for 1h. The elastics used for 1, 12, and 24h had similar forces among them, with a significant difference to the elastics used for 48h. Conclusion: It is recommended to change the intermaxillary elastics after 24 h of use
local.publisher.countryBrasil
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOPEDIATRIA E ORTODONTIA
local.publisher.initialsUFMG
local.url.externahttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7018489/

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