Avaliação histológica do tecido pulpar humano pósintrusão ortodôntica
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/6107 |
Resumo: | The forces applied during orthodontic treatment will cause effects on the teeth and adjacent tissues, depending on the intensity and time of application. Changes caused in the pulp tissues are not fully clarified in the literature by the scarcity of studies, the variety of methodologies, conflicting results and difficulty in conducting research that simulate clinical situations. Given this fact, the present study aimed to evaluate the human dental pulp after application of orthodontic intrusion force through histological examination. The selected sample consisted of 34 first human premolars, with orthodontic indication of extraction, from 17 young individuals (12-19 years old, both genders). On each patient, was applied intrusion force of 60g, randomly in only one of the dental elements, forming Group-Experimental (GE). The counterpart did not receive force, constituting the Control Group (CG), characterizing a split-mouth study. After 21 days, the premolars were extracted, stored in 10% formaldehyde, submitted to histotechnical preparation and stained with hematoxylineosin. The analysis of the histological slides was carried out in optical microscopy by a single experienced calibrated examiner. The paired Fisher exact test (p ≤ 0.05), showed significant increase of fibrous tissue in the GE. The nonparametric Wilcoxon test (p ≤ 0.05), paired, showed significant increase in the number of pulpal nodules in the elements of GE and showed no difference in the number of blood vessels between the groups. In 8 elements of the GE was observed the presence of congested large caliber vessels. The orthodontic intrusion force in these conditions, caused vascular changes in the pulp tissue, increase of fibrosis and of the number of pulpal calcifications in the experimental elements. |
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2014-06-182014-06-182013-08-13LAZZARETTI, Dieison Nardi. HISTOLOGICAL EVALUATION OF THE HUMAN PULP TISSUE AFTER ORTHODONTIC INTRUSION. 2013. 48 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Santa Maria, Santa Maria, 2013.http://repositorio.ufsm.br/handle/1/6107The forces applied during orthodontic treatment will cause effects on the teeth and adjacent tissues, depending on the intensity and time of application. Changes caused in the pulp tissues are not fully clarified in the literature by the scarcity of studies, the variety of methodologies, conflicting results and difficulty in conducting research that simulate clinical situations. Given this fact, the present study aimed to evaluate the human dental pulp after application of orthodontic intrusion force through histological examination. The selected sample consisted of 34 first human premolars, with orthodontic indication of extraction, from 17 young individuals (12-19 years old, both genders). On each patient, was applied intrusion force of 60g, randomly in only one of the dental elements, forming Group-Experimental (GE). The counterpart did not receive force, constituting the Control Group (CG), characterizing a split-mouth study. After 21 days, the premolars were extracted, stored in 10% formaldehyde, submitted to histotechnical preparation and stained with hematoxylineosin. The analysis of the histological slides was carried out in optical microscopy by a single experienced calibrated examiner. The paired Fisher exact test (p ≤ 0.05), showed significant increase of fibrous tissue in the GE. The nonparametric Wilcoxon test (p ≤ 0.05), paired, showed significant increase in the number of pulpal nodules in the elements of GE and showed no difference in the number of blood vessels between the groups. In 8 elements of the GE was observed the presence of congested large caliber vessels. The orthodontic intrusion force in these conditions, caused vascular changes in the pulp tissue, increase of fibrosis and of the number of pulpal calcifications in the experimental elements.As forças aplicadas durante o tratamento ortodôntico ocasionam efeitos nos dentes e tecidos adjacentes, conforme a intensidade e tempo de aplicação. As alterações causadas nos tecidos pulpares não estão totalmente esclarecidas na literatura pela escassez de estudos, variedade de metodologias empregadas, resultados conflitantes e dificuldade de realização de pesquisas que simulem situações clínicas. Diante desse fato, o presente estudo teve como objetivo avaliar a polpa dental humana, após a aplicação de força ortodôntica de intrusão, por meio de exame histológico. A amostra selecionada foi de 34 primeiros pré-molares humanos, com indicação ortodôntica de exodontia, de 17 indivíduos jovens (12 a 19 anos, ambos os sexos). Em cada paciente, foi aplicada força de intrusão de 60g aleatoriamente em apenas um dos elementos dentais, constituindo o Grupo- Experimental (GE). O homólogo não recebeu força constituindo o Grupo-Controle (GC), caracterizando um estudo de boca dividida. Passados 21 dias, os pré-molares foram extraídos, armazenados em formol a 10%, submetidos ao preparo histotécnico e corados com hematoxilina-eosina. A análise das lâminas histológicas foi feita em microscópio óptico, por um único examinador experiente calibrado. O teste exato de Fischer (p≤ 0,05), pareado, mostrou significativo aumento da presença de tecido fibroso no GE. O teste não-paramétrico de Wilcoxon (p≤ 0,05), pareado, mostrou significativo aumento no número de nódulos pulpares nos elementos do GE e não mostrou diferença no número de vasos sanguíneos entre os grupos. Em 8 elementos do GE foi observada a presença de vasos calibrosos e congestos. A força ortodôntica de intrusão, nessas condições, causou alterações vasculares no tecido pulpar, aumentou a presença de áreas de fibrose e o número de calcificações pulpares nos elementos experimentais.application/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Ciências OdontológicasUFSMBROdontologiaMovimentação dentáriaPolpa dentáriaOrtodontiaEndodontiaCalcificações da polpa dentáriaDental pulpDental pulp calcificationPulpitisEndodonticsTooth movementOrthodonticsCNPQ::CIENCIAS DA SAUDE::ODONTOLOGIAAvaliação histológica do tecido pulpar humano pósintrusão ortodônticaHistological evaluation of the human pulp tissue after orthodontic intrusioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisGrehs, Renésio Armindohttp://lattes.cnpq.br/9377953175861506Vanni, José Robertohttp://lattes.cnpq.br/0799421002365404Bier, Carlos Alexandre Souzahttp://lattes.cnpq.br/6734133387557316http://lattes.cnpq.br/0128036615315197Lazzaretti, Dieison Nardi400200000000400300300300300c078af30-5acd-4f62-9f7d-40682b15ce4b5730836b-7aa1-4745-957a-bbb99bfc4b68e0b6ad3e-c9b3-4095-9679-12b2d64fbaeec437bc3e-714a-458f-bde0-29c9d9e60a24info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALLAZZARETTI, DIEISON NARDI.pdfapplication/pdf1506111http://repositorio.ufsm.br/bitstream/1/6107/1/LAZZARETTI%2c%20DIEISON%20NARDI.pdf6c3dd876951670a4dc80f416980301aaMD51TEXTLAZZARETTI, DIEISON NARDI.pdf.txtLAZZARETTI, DIEISON NARDI.pdf.txtExtracted texttext/plain84876http://repositorio.ufsm.br/bitstream/1/6107/2/LAZZARETTI%2c%20DIEISON%20NARDI.pdf.txtc6aac52167708b2e58f249b986fadb0dMD52THUMBNAILLAZZARETTI, DIEISON NARDI.pdf.jpgLAZZARETTI, DIEISON NARDI.pdf.jpgIM Thumbnailimage/jpeg4624http://repositorio.ufsm.br/bitstream/1/6107/3/LAZZARETTI%2c%20DIEISON%20NARDI.pdf.jpg575f0557cf587bdc7cc759784dc34d27MD531/61072022-01-24 08:19:20.702oai:repositorio.ufsm.br:1/6107Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-01-24T11:19:20Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Avaliação histológica do tecido pulpar humano pósintrusão ortodôntica |
dc.title.alternative.eng.fl_str_mv |
Histological evaluation of the human pulp tissue after orthodontic intrusion |
title |
Avaliação histológica do tecido pulpar humano pósintrusão ortodôntica |
spellingShingle |
Avaliação histológica do tecido pulpar humano pósintrusão ortodôntica Lazzaretti, Dieison Nardi Movimentação dentária Polpa dentária Ortodontia Endodontia Calcificações da polpa dentária Dental pulp Dental pulp calcification Pulpitis Endodontics Tooth movement Orthodontics CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA |
title_short |
Avaliação histológica do tecido pulpar humano pósintrusão ortodôntica |
title_full |
Avaliação histológica do tecido pulpar humano pósintrusão ortodôntica |
title_fullStr |
Avaliação histológica do tecido pulpar humano pósintrusão ortodôntica |
title_full_unstemmed |
Avaliação histológica do tecido pulpar humano pósintrusão ortodôntica |
title_sort |
Avaliação histológica do tecido pulpar humano pósintrusão ortodôntica |
author |
Lazzaretti, Dieison Nardi |
author_facet |
Lazzaretti, Dieison Nardi |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Grehs, Renésio Armindo |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9377953175861506 |
dc.contributor.referee1.fl_str_mv |
Vanni, José Roberto |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0799421002365404 |
dc.contributor.referee2.fl_str_mv |
Bier, Carlos Alexandre Souza |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/6734133387557316 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0128036615315197 |
dc.contributor.author.fl_str_mv |
Lazzaretti, Dieison Nardi |
contributor_str_mv |
Grehs, Renésio Armindo Vanni, José Roberto Bier, Carlos Alexandre Souza |
dc.subject.por.fl_str_mv |
Movimentação dentária Polpa dentária Ortodontia Endodontia Calcificações da polpa dentária |
topic |
Movimentação dentária Polpa dentária Ortodontia Endodontia Calcificações da polpa dentária Dental pulp Dental pulp calcification Pulpitis Endodontics Tooth movement Orthodontics CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA |
dc.subject.eng.fl_str_mv |
Dental pulp Dental pulp calcification Pulpitis Endodontics Tooth movement Orthodontics |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA |
description |
The forces applied during orthodontic treatment will cause effects on the teeth and adjacent tissues, depending on the intensity and time of application. Changes caused in the pulp tissues are not fully clarified in the literature by the scarcity of studies, the variety of methodologies, conflicting results and difficulty in conducting research that simulate clinical situations. Given this fact, the present study aimed to evaluate the human dental pulp after application of orthodontic intrusion force through histological examination. The selected sample consisted of 34 first human premolars, with orthodontic indication of extraction, from 17 young individuals (12-19 years old, both genders). On each patient, was applied intrusion force of 60g, randomly in only one of the dental elements, forming Group-Experimental (GE). The counterpart did not receive force, constituting the Control Group (CG), characterizing a split-mouth study. After 21 days, the premolars were extracted, stored in 10% formaldehyde, submitted to histotechnical preparation and stained with hematoxylineosin. The analysis of the histological slides was carried out in optical microscopy by a single experienced calibrated examiner. The paired Fisher exact test (p ≤ 0.05), showed significant increase of fibrous tissue in the GE. The nonparametric Wilcoxon test (p ≤ 0.05), paired, showed significant increase in the number of pulpal nodules in the elements of GE and showed no difference in the number of blood vessels between the groups. In 8 elements of the GE was observed the presence of congested large caliber vessels. The orthodontic intrusion force in these conditions, caused vascular changes in the pulp tissue, increase of fibrosis and of the number of pulpal calcifications in the experimental elements. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-08-13 |
dc.date.accessioned.fl_str_mv |
2014-06-18 |
dc.date.available.fl_str_mv |
2014-06-18 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
LAZZARETTI, Dieison Nardi. HISTOLOGICAL EVALUATION OF THE HUMAN PULP TISSUE AFTER ORTHODONTIC INTRUSION. 2013. 48 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Santa Maria, Santa Maria, 2013. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/6107 |
identifier_str_mv |
LAZZARETTI, Dieison Nardi. HISTOLOGICAL EVALUATION OF THE HUMAN PULP TISSUE AFTER ORTHODONTIC INTRUSION. 2013. 48 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Santa Maria, Santa Maria, 2013. |
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http://repositorio.ufsm.br/handle/1/6107 |
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Universidade Federal de Santa Maria |
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UFSM |
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Odontologia |
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Universidade Federal de Santa Maria |
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