External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/8813 |
Resumo: | Objective: The purpose of this retrospective study was to evaluate and quantify external apical root resorption (EARR) in molars after masialization into atrophic alveolar ridge area. Materials and Methods: The sample consisted of 11 patients, five women and six men, and a total of 16 molars, both superior and inferior (seven in the maxilla and nine in the mandible). The age range was 19 to 55 years at the beginning of treatment (initial mean age of 36 years and 5 months), with an average treatment time of 23 months. Tooth movement was performed with mini-implant anchorage using NiTi springs, using a mean force of 300 grams. The sample was evaluated using cone-beam CT scans (CBCT) in two periods, at the beginning of the treatment (T1) and after 4 mm of movement (T2). Root resorption was measured by the difference in root lengths (T2-T1). Using the distance from the floor of the pulp chamber to the root apex as a reference. Root length was measured using specific software (OnDemand3Ddental) and was analyzed using the paired t-test, adopting a significance level of 5%. Results: There was statistically significant resorption only in the mesial and distal roots, with a mean reduction of 0.69 mm in the mesial root (-6.2%) and 0.83 mm in the distal root (-7.4%). Conclusion: Space closure after dental movement in an atrophic alveolar ridge was identified as a risk factor for ARR. However, the amount of ARR could be considered clinically irrelevant. |
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External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluationResorción externa de la raíz apical tras el cierre del espacio molar con miniscrew como anclaje: una evaluación tomográfica Reabsorção radicular apical externa após fechamento de espaço do molar com uso de mini-implante como ancoragem: avaliação tomográficaReabsorção da RaizProcedimentos de Ancoragem OrtodônticaMovimentação dentária.Resorción RadicularMétodos de Anclaje en OrtodonciaTécnicas de movimiento dental.Root ResorptionOrthodontic Anchorage ProceduresTooth movement.Objective: The purpose of this retrospective study was to evaluate and quantify external apical root resorption (EARR) in molars after masialization into atrophic alveolar ridge area. Materials and Methods: The sample consisted of 11 patients, five women and six men, and a total of 16 molars, both superior and inferior (seven in the maxilla and nine in the mandible). The age range was 19 to 55 years at the beginning of treatment (initial mean age of 36 years and 5 months), with an average treatment time of 23 months. Tooth movement was performed with mini-implant anchorage using NiTi springs, using a mean force of 300 grams. The sample was evaluated using cone-beam CT scans (CBCT) in two periods, at the beginning of the treatment (T1) and after 4 mm of movement (T2). Root resorption was measured by the difference in root lengths (T2-T1). Using the distance from the floor of the pulp chamber to the root apex as a reference. Root length was measured using specific software (OnDemand3Ddental) and was analyzed using the paired t-test, adopting a significance level of 5%. Results: There was statistically significant resorption only in the mesial and distal roots, with a mean reduction of 0.69 mm in the mesial root (-6.2%) and 0.83 mm in the distal root (-7.4%). Conclusion: Space closure after dental movement in an atrophic alveolar ridge was identified as a risk factor for ARR. However, the amount of ARR could be considered clinically irrelevant.Objetivo: El propósito de este estudio retrospectivo fue evaluar y cuantificar la reabsorción radicular apical externa (EARR) en molares después de la masialización en el área del reborde alveolar atrófico. Materiales y Métodos: La muestra estuvo conformada por 11 pacientes, cinco mujeres y seis hombres, y un total de 16 molares, tanto superiores como inferiores (siete en el maxilar y nueve en la mandíbula). El rango de edad fue de 19 a 55 años al inicio del tratamiento (edad media inicial de 36 años y 5 meses), con un tiempo medio de tratamiento de 23 meses. El movimiento dentario se realizó con anclaje de mini-implantes utilizando resortes de NiTi, utilizando una fuerza media de 300 gramos. La muestra se evaluó mediante TC de haz cónico (CBCT) en dos periodos, al inicio del tratamiento (T1) y después de 4 mm de movimiento (T2). La reabsorción de raíces se midió por la diferencia en la longitud de las raíces (T2-T1). Utilizando la distancia desde el suelo de la cámara pulpar hasta el ápice de la raíz como referencia. La longitud de la raíz se midió mediante un software específico (OnDemand3Ddental) y se analizó mediante la prueba t pareada, adoptando un nivel de significancia del 5%. Resultados: Hubo reabsorción estadísticamente significativa solo en las raíces mesial y distal, con una reducción media de 0,69 mm en la raíz mesial (-6,2%) y 0,83 mm en la raíz distal (-7,4%). Conclusión: El cierre del espacio después del movimiento dentario en un reborde alveolar atrófico fue identificado como un factor de riesgo para RRA. Sin embargo, la cantidad de ARR podría considerarse clínicamente irrelevante.Objetivo: Avaliar e quantificar a reabsorção radicular apical nos molares mesializados por meio de mini-implantes. Metodologia: A amostra desse estudo retrospectivo foi composta por 10 pacientes (6 do sexo masculino e 4 do sexo feminino), com idades entre 19 e 55 anos, em um total de 15 dentes mesializados (6 no arco superior e 9 no arco inferior) ortodônticamente com auxílio de mini-implantes, em um tempo médio de 22,46 meses. Essa amostra foi avaliada por meio de tomografias computadorizadas de feixe cônico, em dois períodos, antes (T1) e após 4mm de mesialização (T2). Para realizar a mensuração, os molares foram verticalizados e tivemos como referência o assoalho da câmara pulpar até o ápice dentário. O comprimento das raízes dos molares foi medido em um software específico (OnDemand3Ddental) e analisados através do teste t pareado adotando o nível de significância de 5% (p<0,05). Resultados: A média do comprimento da raiz na fase inicial foi de 11,29 com desvio padrão de 2,46. E a média do comprimento da raiz na fase final de 10,60 com desvio padrão de 2,63. Conclusão: Houve reabsorção estatisticamente significante, com média de 0,69mm, o que corresponde a uma reabsorção de 6,1% do comprimento da raiz.Research, Society and Development2020-10-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/881310.33448/rsd-v9i10.8813Research, Society and Development; Vol. 9 No. 10; e4449108813Research, Society and Development; Vol. 9 Núm. 10; e4449108813Research, Society and Development; v. 9 n. 10; e44491088132525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/8813/7786Copyright (c) 2020 Karla de Souza Vasconcelos Coelho; Danilo Pinelli Valarelli; Victor de Miranda Ladewig; Ana Claudia de Castro Ferreira Conti; Renata Rodrigues Almeida-Pedrin; Francyle Simões Herrera Sancheshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessCoelho, Karla de Souza VasconcelosValarelli, Danilo PinelliLadewig, Victor de MirandaConti, Ana Claudia de Castro FerreiraAlmeida-Pedrin, Renata RodriguesSanches, Francyle Simões Herrera2020-10-31T12:03:23Zoai:ojs.pkp.sfu.ca:article/8813Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:31:12.289729Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation Resorción externa de la raíz apical tras el cierre del espacio molar con miniscrew como anclaje: una evaluación tomográfica Reabsorção radicular apical externa após fechamento de espaço do molar com uso de mini-implante como ancoragem: avaliação tomográfica |
title |
External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation |
spellingShingle |
External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation Coelho, Karla de Souza Vasconcelos Reabsorção da Raiz Procedimentos de Ancoragem Ortodôntica Movimentação dentária. Resorción Radicular Métodos de Anclaje en Ortodoncia Técnicas de movimiento dental. Root Resorption Orthodontic Anchorage Procedures Tooth movement. |
title_short |
External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation |
title_full |
External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation |
title_fullStr |
External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation |
title_full_unstemmed |
External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation |
title_sort |
External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation |
author |
Coelho, Karla de Souza Vasconcelos |
author_facet |
Coelho, Karla de Souza Vasconcelos Valarelli, Danilo Pinelli Ladewig, Victor de Miranda Conti, Ana Claudia de Castro Ferreira Almeida-Pedrin, Renata Rodrigues Sanches, Francyle Simões Herrera |
author_role |
author |
author2 |
Valarelli, Danilo Pinelli Ladewig, Victor de Miranda Conti, Ana Claudia de Castro Ferreira Almeida-Pedrin, Renata Rodrigues Sanches, Francyle Simões Herrera |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Coelho, Karla de Souza Vasconcelos Valarelli, Danilo Pinelli Ladewig, Victor de Miranda Conti, Ana Claudia de Castro Ferreira Almeida-Pedrin, Renata Rodrigues Sanches, Francyle Simões Herrera |
dc.subject.por.fl_str_mv |
Reabsorção da Raiz Procedimentos de Ancoragem Ortodôntica Movimentação dentária. Resorción Radicular Métodos de Anclaje en Ortodoncia Técnicas de movimiento dental. Root Resorption Orthodontic Anchorage Procedures Tooth movement. |
topic |
Reabsorção da Raiz Procedimentos de Ancoragem Ortodôntica Movimentação dentária. Resorción Radicular Métodos de Anclaje en Ortodoncia Técnicas de movimiento dental. Root Resorption Orthodontic Anchorage Procedures Tooth movement. |
description |
Objective: The purpose of this retrospective study was to evaluate and quantify external apical root resorption (EARR) in molars after masialization into atrophic alveolar ridge area. Materials and Methods: The sample consisted of 11 patients, five women and six men, and a total of 16 molars, both superior and inferior (seven in the maxilla and nine in the mandible). The age range was 19 to 55 years at the beginning of treatment (initial mean age of 36 years and 5 months), with an average treatment time of 23 months. Tooth movement was performed with mini-implant anchorage using NiTi springs, using a mean force of 300 grams. The sample was evaluated using cone-beam CT scans (CBCT) in two periods, at the beginning of the treatment (T1) and after 4 mm of movement (T2). Root resorption was measured by the difference in root lengths (T2-T1). Using the distance from the floor of the pulp chamber to the root apex as a reference. Root length was measured using specific software (OnDemand3Ddental) and was analyzed using the paired t-test, adopting a significance level of 5%. Results: There was statistically significant resorption only in the mesial and distal roots, with a mean reduction of 0.69 mm in the mesial root (-6.2%) and 0.83 mm in the distal root (-7.4%). Conclusion: Space closure after dental movement in an atrophic alveolar ridge was identified as a risk factor for ARR. However, the amount of ARR could be considered clinically irrelevant. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-04 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/8813 10.33448/rsd-v9i10.8813 |
url |
https://rsdjournal.org/index.php/rsd/article/view/8813 |
identifier_str_mv |
10.33448/rsd-v9i10.8813 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/8813/7786 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 9 No. 10; e4449108813 Research, Society and Development; Vol. 9 Núm. 10; e4449108813 Research, Society and Development; v. 9 n. 10; e4449108813 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
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1797052740847796224 |