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Cartilage changes link retrognathic mandibular growth to TMJ disc displacement in a rabbit model
Umeå universitet, Medicinska fakulteten, Institutionen för odontologi, Oral diagnostisk radiologi.
2011 (Engelska)Ingår i: International Journal of Oral and Maxillofacial Surgery, ISSN 0901-5027, E-ISSN 1399-0020, Vol. 40, nr 6, s. 621-627Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Recent experimental research demonstrated that non-reducing temporomandibular joint (TMJ) disc displacement in growing rabbits impaired mandibular growth. TMJ disc displacement is also shown to induce histological changes of the condylar cartilage. The authors hypothesized that the severity of these changes would correlate to the magnitude of mandibular growth. Bilateral non-reducing TMJ disc displacement was surgically created in 10 growing New Zealand White rabbits. Ten additional rabbits constituted a sham operated control group. Aided by tantalum implants, growth was cephalometrically determined for each mandibular side during a period equivalent to childhood and adolescence in man. At the end of the growth period, histologically classified cartilage features were correlated with the assessed ipsilateral mandibular growth. Non-reducing displacement of the TMJ disc during the growth period induced histological reactions of the condylar cartilage in the rabbit model. The severity of cartilage changes was inversely correlated to the magnitude and the direction of mandibular growth, which resulted in a retrognathic growth pattern.

Ort, förlag, år, upplaga, sidor
Elsevier , 2011. Vol. 40, nr 6, s. 621-627
Nyckelord [en]
adaptive modelling, adolescence, biomechanical function, mandibular retrognathia, temporomandibular joint
Nationell ämneskategori
Radiologi och bildbehandling
Forskningsämne
medicin
Identifikatorer
URN: urn:nbn:se:umu:diva-45669DOI: 10.1016/j.ijom.2011.01.004PubMedID: 21334177Scopus ID: 2-s2.0-79956286781OAI: oai:DiVA.org:umu-45669DiVA, id: diva2:433241
Tillgänglig från: 2011-08-09 Skapad: 2011-08-09 Senast uppdaterad: 2023-03-24Bibliografiskt granskad

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Bryndahl, FredrikIsberg, A

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