Analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in rats
In order to microscopically analyze the pulpal effects of orthodontic movement, 49 maxillary first molars of rats were submitted to orthodontic appliance composed of a closed coil spring anchored to the maxillary incisors, placed for the achievement of mesial movement. MATERIAL AND METHODS: Ten animals were used as the control group and were not submitted to orthodontic force; the other animals were divided into groups according to the study period of tooth movement, namely 1, 2, 3, 4, 5, 6 and 7 days. The investigation of pulp and periodontal changes included hyalinization, fibrosis, reactive dentin and vascular congestion. Statistical evaluation was performed between control and experimental groups and between periods of observation using non-parametric chi-square, Kruskal-Wallis and Dunn tests. RESULTS: There was no statistically significant difference concerning pulpal changes between control and experimental groups nor between periods of observation. The control group, at 3 and 5 days, revealed greater hyalinization of the periodontal ligament (p<0.05), whereas root resorption was significantly greater at 5 and 7 days (p<0.05). CONCLUSION: No morphological change from the effect of induced tooth movement could be found in the dentin-pulp complex. In addition, no inflammatory or pulp degeneration, detectable in optical microscopy, was found in experimental groups.
Main Authors: | , , , , |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Faculdade De Odontologia De Bauru - USP
2009
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572009000700007 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
oai:scielo:S1678-77572009000700007 |
---|---|
record_format |
ojs |
spelling |
oai:scielo:S1678-775720090007000072011-03-04Analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in ratsMassaro,Camila da SiveiraConsolaro,Renata BiancoSantamaria Junior,MiltonConsolaro,Maria Fernanda Martins-OrtizConsolaro,Alberto Dental pulp Rat Tooth movement Root resorption In order to microscopically analyze the pulpal effects of orthodontic movement, 49 maxillary first molars of rats were submitted to orthodontic appliance composed of a closed coil spring anchored to the maxillary incisors, placed for the achievement of mesial movement. MATERIAL AND METHODS: Ten animals were used as the control group and were not submitted to orthodontic force; the other animals were divided into groups according to the study period of tooth movement, namely 1, 2, 3, 4, 5, 6 and 7 days. The investigation of pulp and periodontal changes included hyalinization, fibrosis, reactive dentin and vascular congestion. Statistical evaluation was performed between control and experimental groups and between periods of observation using non-parametric chi-square, Kruskal-Wallis and Dunn tests. RESULTS: There was no statistically significant difference concerning pulpal changes between control and experimental groups nor between periods of observation. The control group, at 3 and 5 days, revealed greater hyalinization of the periodontal ligament (p<0.05), whereas root resorption was significantly greater at 5 and 7 days (p<0.05). CONCLUSION: No morphological change from the effect of induced tooth movement could be found in the dentin-pulp complex. In addition, no inflammatory or pulp degeneration, detectable in optical microscopy, was found in experimental groups.info:eu-repo/semantics/openAccessFaculdade De Odontologia De Bauru - USPJournal of Applied Oral Science v.17 n.spe 20092009-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572009000700007en10.1590/S1678-77572009000700007 |
institution |
SCIELO |
collection |
OJS |
country |
Brasil |
countrycode |
BR |
component |
Revista |
access |
En linea |
databasecode |
rev-scielo-br |
tag |
revista |
region |
America del Sur |
libraryname |
SciELO |
language |
English |
format |
Digital |
author |
Massaro,Camila da Siveira Consolaro,Renata Bianco Santamaria Junior,Milton Consolaro,Maria Fernanda Martins-Ortiz Consolaro,Alberto |
spellingShingle |
Massaro,Camila da Siveira Consolaro,Renata Bianco Santamaria Junior,Milton Consolaro,Maria Fernanda Martins-Ortiz Consolaro,Alberto Analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in rats |
author_facet |
Massaro,Camila da Siveira Consolaro,Renata Bianco Santamaria Junior,Milton Consolaro,Maria Fernanda Martins-Ortiz Consolaro,Alberto |
author_sort |
Massaro,Camila da Siveira |
title |
Analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in rats |
title_short |
Analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in rats |
title_full |
Analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in rats |
title_fullStr |
Analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in rats |
title_full_unstemmed |
Analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in rats |
title_sort |
analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in rats |
description |
In order to microscopically analyze the pulpal effects of orthodontic movement, 49 maxillary first molars of rats were submitted to orthodontic appliance composed of a closed coil spring anchored to the maxillary incisors, placed for the achievement of mesial movement. MATERIAL AND METHODS: Ten animals were used as the control group and were not submitted to orthodontic force; the other animals were divided into groups according to the study period of tooth movement, namely 1, 2, 3, 4, 5, 6 and 7 days. The investigation of pulp and periodontal changes included hyalinization, fibrosis, reactive dentin and vascular congestion. Statistical evaluation was performed between control and experimental groups and between periods of observation using non-parametric chi-square, Kruskal-Wallis and Dunn tests. RESULTS: There was no statistically significant difference concerning pulpal changes between control and experimental groups nor between periods of observation. The control group, at 3 and 5 days, revealed greater hyalinization of the periodontal ligament (p<0.05), whereas root resorption was significantly greater at 5 and 7 days (p<0.05). CONCLUSION: No morphological change from the effect of induced tooth movement could be found in the dentin-pulp complex. In addition, no inflammatory or pulp degeneration, detectable in optical microscopy, was found in experimental groups. |
publisher |
Faculdade De Odontologia De Bauru - USP |
publishDate |
2009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572009000700007 |
work_keys_str_mv |
AT massarocamiladasiveira analysisofthedentinpulpcomplexinteethsubmittedtoorthodonticmovementinrats AT consolarorenatabianco analysisofthedentinpulpcomplexinteethsubmittedtoorthodonticmovementinrats AT santamariajuniormilton analysisofthedentinpulpcomplexinteethsubmittedtoorthodonticmovementinrats AT consolaromariafernandamartinsortiz analysisofthedentinpulpcomplexinteethsubmittedtoorthodonticmovementinrats AT consolaroalberto analysisofthedentinpulpcomplexinteethsubmittedtoorthodonticmovementinrats |
_version_ |
1756428805126225920 |