Relationship between the angulation of temporary anchoring devices and their displacement. Experimental study

The purpose of this study is to assess how the insertion angle influence the stability mini-implant when loaded with  200 cNe in this study, 2 mini-screws were implanted in male rabbits’ (n=25) tibia in a 6 weeks interval between the first one and the second one....

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Autor principal: Piacenza, AB
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Odontología 2021
Materias:
mini-implant, anchorage, stability
mini-implantes, anclaje, estabilidad
Acceso en línea:https://revistas.unc.edu.ar/index.php/RevFacOdonto/article/view/32437
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Revista de la Facultad de Odontología de Universidad Nacional de Córdoba
id I10-R335-article-32437
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spelling I10-R335-article-324372021-03-14T21:22:07Z Relationship between the angulation of temporary anchoring devices and their displacement. Experimental study Relación entre la angulación de los dispositivos de anclaje temporario y su desplazamiento. Estudio experimental Piacenza, AB mini-implant, anchorage, stability mini-implantes, anclaje, estabilidad The purpose of this study is to assess how the insertion angle influence the stability mini-implant when loaded with  200 cNe in this study, 2 mini-screws were implanted in male rabbits’ (n=25) tibia in a 6 weeks interval between the first one and the second one. The second mini-implants were placed at different angles with respect to the cortical bone: -20° in the direction of the force e (Group I), perpendicular to the force (Group II) and 30° in the opposite direction of the force (Group III). These experimental implants were immediately loaded (right tibias). The Tad`s on the left tibias were regarded as control. The animals were sacrificed six weeks after the first surgery. Linear distances between the two Tad`s were measured with a digital caliper at the time of placement, and after the sacrifice, then were compared. The displacements were: Group I, 2.96 mm ±1.05; Group II, 0.27 mm ±0.36; and Group III, 0.29 mm ±0.26. The controls remained. The values for the micro-implants of Group I showed statistically significant differences (p≤0.05) compared to Groups II y III. Based on these data, we can conclude that mini-implants inclined towards the direction of the force applied induce more displacement than the ones placed perpendicular to the force or in the opposite direction of the force. El propósito del presente estudio es evaluar la eficacia del mini-implante utilizado en ortodoncia al aplicarle una fuerza de 200 g, colocado en distintas angulaciones.  Se utilizaron conejos machos (n=25), y se les implantaron 2 mini-tornillos en cada tibia, con un intervalo de seis semanas. Los segundos mini-implantes se colocaron en diferentes angulaciones respecto a la cortical: -20º a favor de la fuerza (Grupo I), perpendiculares a la fuerza (Grupo II) y 30º en sentido contrario a la fuerza (Grupo III). Los mini-implantes experimentales se activaron de manera inmediata (tibias derechas), mientras que las tibias izquierdas se tomaron como controles. Los animales se sacrificaron seis semanas después. Se tomaron medidas macroscópicas con un calibre digital en el momento de la colocación y después del sacrificio, comparándose la diferencia entre ambas. Se encontró desplazamiento de los mini-implantes problema del Grupo I de 2,96 mm ±1,05, del Grupo II de 0,27 mm ±0,36, y del Grupo III de 0,29 mm ±0,26; mientras que los controles permanecieron inmóviles. Los valores para los micro-implantes del Grupo I presentaron diferencias estadísticamente significativas (p≤0,05) con respecto a los Grupos II y III. Estos datos nos permiten concluir que la colocación de mini-implantes inclinados a favor de la fuerza aplicada induce un mayor desplazamiento que los colocados perpendiculares o en sentido contrario a la misma Facultad de Odontología 2021-03-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/RevFacOdonto/article/view/32437 Revista de la Facultad de Odontología; Vol. 31 Núm. 1 (2021): Volumen 31 (1) año 2021-Marzo; 10-18 2545-7594 0325-1071 spa https://revistas.unc.edu.ar/index.php/RevFacOdonto/article/view/32437/33216 https://revistas.unc.edu.ar/index.php/RevFacOdonto/article/view/32437/33217 https://creativecommons.org/licenses/by-nc-sa/4.0
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-335
container_title_str Revista de la Facultad de Odontología
language Español
format Artículo revista
topic mini-implant, anchorage, stability
mini-implantes, anclaje, estabilidad
spellingShingle mini-implant, anchorage, stability
mini-implantes, anclaje, estabilidad
Piacenza, AB
Relationship between the angulation of temporary anchoring devices and their displacement. Experimental study
topic_facet mini-implant, anchorage, stability
mini-implantes, anclaje, estabilidad
author Piacenza, AB
author_facet Piacenza, AB
author_sort Piacenza, AB
title Relationship between the angulation of temporary anchoring devices and their displacement. Experimental study
title_short Relationship between the angulation of temporary anchoring devices and their displacement. Experimental study
title_full Relationship between the angulation of temporary anchoring devices and their displacement. Experimental study
title_fullStr Relationship between the angulation of temporary anchoring devices and their displacement. Experimental study
title_full_unstemmed Relationship between the angulation of temporary anchoring devices and their displacement. Experimental study
title_sort relationship between the angulation of temporary anchoring devices and their displacement. experimental study
description The purpose of this study is to assess how the insertion angle influence the stability mini-implant when loaded with  200 cNe in this study, 2 mini-screws were implanted in male rabbits’ (n=25) tibia in a 6 weeks interval between the first one and the second one. The second mini-implants were placed at different angles with respect to the cortical bone: -20° in the direction of the force e (Group I), perpendicular to the force (Group II) and 30° in the opposite direction of the force (Group III). These experimental implants were immediately loaded (right tibias). The Tad`s on the left tibias were regarded as control. The animals were sacrificed six weeks after the first surgery. Linear distances between the two Tad`s were measured with a digital caliper at the time of placement, and after the sacrifice, then were compared. The displacements were: Group I, 2.96 mm ±1.05; Group II, 0.27 mm ±0.36; and Group III, 0.29 mm ±0.26. The controls remained. The values for the micro-implants of Group I showed statistically significant differences (p≤0.05) compared to Groups II y III. Based on these data, we can conclude that mini-implants inclined towards the direction of the force applied induce more displacement than the ones placed perpendicular to the force or in the opposite direction of the force.
publisher Facultad de Odontología
publishDate 2021
url https://revistas.unc.edu.ar/index.php/RevFacOdonto/article/view/32437
work_keys_str_mv AT piacenzaab relationshipbetweentheangulationoftemporaryanchoringdevicesandtheirdisplacementexperimentalstudy
AT piacenzaab relacionentrelaangulaciondelosdispositivosdeanclajetemporarioysudesplazamientoestudioexperimental
first_indexed 2024-09-03T21:16:21Z
last_indexed 2024-09-03T21:16:21Z
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