dc.contributor.author | Zhong, J | |
dc.contributor.author | Chen, J | |
dc.contributor.author | Weinkamer, R | |
dc.contributor.author | Darendeliler, AD | |
dc.contributor.author | Swain, MV | |
dc.contributor.author | Sue, A | |
dc.contributor.author | Zheng, K | |
dc.contributor.author | Li, Q | |
dc.date.accessioned | 2019-04-29T08:09:51Z | |
dc.date.issued | 2019-05-01 | |
dc.description.abstract | Orthodontic root resorption (ORR) is a common side effect of orthodontic therapy. It has been known that high hydrostatic pressure in the periodontal ligament (PDL) generated by orthodontic forces will trigger recruitment of odontoclasts, leaving resorption craters on root surfaces. The patterns of resorption craters are the traces of odontoclast activity. This study aimed to investigate resorptive patterns by: (1) quantifying spatial root resorption under two different levels of in-vivo orthodontic loadings using microCT imaging techniques; and (2) correlating the spatial distribution pattern of resorption craters with the induced mechanobiological stimulus field in PDL through nonlinear finite element analysis (FEA) in silico.
Results indicated that the heavy force led to a larger total resorption volume than the light force, mainly by presenting greater individual crater volumes (p < 0.001) than increasing crater numbers, suggesting that increased mechano-stimulus predominantly boosted cellular resorption activity rather than recruiting more odontoclasts. Furthermore, buccal-cervical and lingual-apical regions in both groups were found to have significantly larger resorption volumes than other regions (p < 0.005). These clinical observations are complimented by the FEA results, suggesting that root resorption was more likely to occur when the volume average compressive hydrostatic pressure exceeded the capillary blood pressure (4.7kPa). | en_GB |
dc.description.sponsorship | Australian Research Council (ARC) | en_GB |
dc.description.sponsorship | Deutsche Forschungsgemeinschaft (DFG) | en_GB |
dc.identifier.citation | Vol. 16 (154). Published online 01 May 2019. | en_GB |
dc.identifier.doi | 10.1098/rsif.2019.0108 | |
dc.identifier.grantnumber | DP160104602 | en_GB |
dc.identifier.grantnumber | GSC 203 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/36921 | |
dc.language.iso | en | en_GB |
dc.publisher | Royal Society | en_GB |
dc.rights | © 2019 The Author(s). Published by the Royal Society. All rights reserved. | |
dc.subject | orthodontic root resorption | en_GB |
dc.subject | nonlinear finite element analysis | en_GB |
dc.subject | mechano-stimulus | en_GB |
dc.subject | periodontal ligament | en_GB |
dc.subject | odontoclastic activity | en_GB |
dc.title | In vivo effects of different orthodontic loading on root resorption and correlation to mechanobiological stimulus in periodontal ligament | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2019-04-29T08:09:51Z | |
dc.identifier.issn | 1742-5689 | |
dc.description | This is the author accepted manuscript. The final version is available from The Royal Society via the DOI in this record. | en_GB |
dc.description | The datasets and codes supporting this article can be accessed via this link: https://cloudstor.aarnet.edu.au/plus/s/erocePG0H9mlfWM. | en_GB |
dc.identifier.journal | Interface | en_GB |
dc.rights.uri | http://www.rioxx.net/licenses/all-rights-reserved | en_GB |
dcterms.dateAccepted | 2019-04-01 | |
rioxxterms.version | AM | en_GB |
rioxxterms.licenseref.startdate | 2019-04-01 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2019-04-12T00:31:51Z | |
refterms.versionFCD | AM | |
refterms.dateFOA | 2019-05-14T14:38:50Z | |
refterms.panel | B | en_GB |