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Article: Image analysis of condylar cartilaginous adaptation to mandibular protrusion in rats

TitleImage analysis of condylar cartilaginous adaptation to mandibular protrusion in rats
Authors
Issue Date1999
PublisherSichuan Daxue, Huaxi Kouqiang Xueyuan. The Journal's web site is located at http://hxkqyxzz.periodicals.net.cn/
Citation
Hua Xi Kou Qiang Yi Xue Za Zhi = Huaxi Kouqiang Yixue Zazhi = West China Journal Of Stomatology, 1999, v. 17 n. 2, p. 155-158 How to Cite?
AbstractOBJECTIVE: To quantify chondrogenesis in condylar cartilage in response to active forward positioning of mandible. METHODS: Identical bite-jumping appliances were fixed to upper incisors of animals in experimental groups, causing a continuous mandibular forward positioning. Histological sections were performed through mandibular condyle and were stained with HE under the same condition. Chondrogenesis was quantified by measuring the area of cells in resting, proliferative, hypertrophic and erosive zones in the superioposterior region, through computer-assisted image analyzing system (Q550IW, Leica) with the advanced software (Leica Qwin Pro, V2.2). Statistical analysis was performed with GraphPad 3.0. RESULTS: 1. comparison among experimental groups revealed a fluctuation in proliferative zone, with 21-day group being the greatest (0.058 +/- 0.004 mm2) and 14-day the least (0.012 +/- 0.001 mm2). A change in erosive zone was also depicted by a peak of 0.112 +/- 0.001 mm2 in 7-day group and a bottom of 0.018 +/- 0.002 mm2 in 14-day group (P < 0.001). 2. comparison among the control groups manifested stable zonation, except for a slump of proliferative zone descending from 0.069 +/- 0.005 mm2 in 3-day group to 0.009 +/- 0.001 mm2 in 21-day group (P < 0.001). 3. comparison between experimental and control groups demonstrated significant discrepancy in proliferative zone, hypertrophic zone and erosive zone (P < 0.001). CONCLUSION: Mandibular forward positioning stimulates and accelerates cartilaginous remodeling in mandibular condyle.
Persistent Identifierhttp://hdl.handle.net/10722/66652
ISSN
2015 SCImago Journal Rankings: 0.121

 

DC FieldValueLanguage
dc.contributor.authorZhao, Zen_HK
dc.contributor.authorRabie, ABen_HK
dc.contributor.authorUrban, Hen_HK
dc.contributor.authorShen, Gen_HK
dc.date.accessioned2010-09-06T05:48:10Z-
dc.date.available2010-09-06T05:48:10Z-
dc.date.issued1999en_HK
dc.identifier.citationHua Xi Kou Qiang Yi Xue Za Zhi = Huaxi Kouqiang Yixue Zazhi = West China Journal Of Stomatology, 1999, v. 17 n. 2, p. 155-158en_HK
dc.identifier.issn1000-1182en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66652-
dc.description.abstractOBJECTIVE: To quantify chondrogenesis in condylar cartilage in response to active forward positioning of mandible. METHODS: Identical bite-jumping appliances were fixed to upper incisors of animals in experimental groups, causing a continuous mandibular forward positioning. Histological sections were performed through mandibular condyle and were stained with HE under the same condition. Chondrogenesis was quantified by measuring the area of cells in resting, proliferative, hypertrophic and erosive zones in the superioposterior region, through computer-assisted image analyzing system (Q550IW, Leica) with the advanced software (Leica Qwin Pro, V2.2). Statistical analysis was performed with GraphPad 3.0. RESULTS: 1. comparison among experimental groups revealed a fluctuation in proliferative zone, with 21-day group being the greatest (0.058 +/- 0.004 mm2) and 14-day the least (0.012 +/- 0.001 mm2). A change in erosive zone was also depicted by a peak of 0.112 +/- 0.001 mm2 in 7-day group and a bottom of 0.018 +/- 0.002 mm2 in 14-day group (P < 0.001). 2. comparison among the control groups manifested stable zonation, except for a slump of proliferative zone descending from 0.069 +/- 0.005 mm2 in 3-day group to 0.009 +/- 0.001 mm2 in 21-day group (P < 0.001). 3. comparison between experimental and control groups demonstrated significant discrepancy in proliferative zone, hypertrophic zone and erosive zone (P < 0.001). CONCLUSION: Mandibular forward positioning stimulates and accelerates cartilaginous remodeling in mandibular condyle.en_HK
dc.languageengen_HK
dc.publisherSichuan Daxue, Huaxi Kouqiang Xueyuan. The Journal's web site is located at http://hxkqyxzz.periodicals.net.cn/en_HK
dc.relation.ispartofHua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatologyen_HK
dc.subject.meshAnimalsen_HK
dc.subject.meshChondrogenesisen_HK
dc.subject.meshFemaleen_HK
dc.subject.meshImage Processing, Computer-Assisted - methodsen_HK
dc.subject.meshMandibular Condyle - growth & developmenten_HK
dc.subject.meshOrthodontic Appliances, Functionalen_HK
dc.subject.meshRatsen_HK
dc.subject.meshRats, Sprague-Dawleyen_HK
dc.titleImage analysis of condylar cartilaginous adaptation to mandibular protrusion in ratsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1000-1182&volume=17&issue=2&spage=155 &epage= 158&date=1999&atitle=Image+analysis+of+condylar+cartilaginous+adaptation+to+mandibular+protrusion+in+ratsen_HK
dc.identifier.emailRabie, AB: rabie@hku.hken_HK
dc.identifier.authorityRabie, AB=rp00029en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.pmid12539714-
dc.identifier.scopuseid_2-s2.0-0033134564en_HK
dc.identifier.hkuros41841en_HK
dc.identifier.volume17en_HK
dc.identifier.issue2en_HK
dc.identifier.spage155en_HK
dc.identifier.epage158en_HK
dc.publisher.placeChinaen_HK
dc.identifier.scopusauthoridZhao, Z=7404148097en_HK
dc.identifier.scopusauthoridRabie, AB=7007172734en_HK
dc.identifier.scopusauthoridUrban, H=7006611058en_HK
dc.identifier.scopusauthoridShen, G=7401966958en_HK

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