İnsan Maksilla ve Mandibula Trabeküler Mikro Yapısının Mikro Bilgisayarlı Tomografi ile İncelenmesi

ÖZ Amaç: Maksilla ve mandibulanın trabeküler mikromimarisini mikrobilgisayarlı tomografi (mikro-BT) kullanarak değerlendirmek. Materyal ve metod: Yirmi adet maksiller ve mandibula kadavra örneği, mikro BT kullanılarak tarandı. Numuneler Skyscan 1275® micro-CT sistemi (SkyScan, Kontich, Belçika) kullanılarak aşağıdaki parametrelerle tarandı. Tarama verileri CTan yazılımına aktarıldı ve analiz edildi. Morfometrik parametreler; doku hacmi (DH), Kemik hacmi (KH), kemik hacmi yüzdesi (KH/DH), doku yüzeyi (DY), kemik yüzeyi (KY), kesişme yüzeyi (KY), kemik yüzeyi/hacim oranı (KY/KH), kemik yüzey yoğunluğu (BS/TV), trabeküler patern faktörü (Tb.Pf), yapı modeli indeksi (YMI), trabeküler kalınlık (Tb. Th), trabeküler ayrılma (Tb. Sp), trabeküler sayı (Tb.N) ve anizotropi derecesi (DA), CTAnalyzer yazılımı kullanılarak değerlendirildi. İstatistiksel anlamlılık p<0.05 olarak ayarlandı. Bulgular: BV/TV, Tb.Th, Tb. KIBT görüntülerinde Sp ve DA değerleri mikro-BT görüntülerine göre daha yüksek iken, Tb. CBCT görüntülerinde N değeri, mikro BT görüntülerinden daha düşüktü. BV/TV ve DA parametreleri, CBCT ve mikro-CT cihazları arasında en yüksek uyumu gösterdi (BV/TV için ICC=0,421 ve DA için ICC=0,439, p<0,01). Sonuç: En küçük voksel boyutunda elde edilen CBCT'de ölçülen BV/TV ve DA parametrelerinin maksiller trabeküler mikroyapının değerlendirilmesinde yararlı olduğu bulundu.

Anahtar Kelimeler:

Mikro bilgisayarlı tomografi, trabeküler kemik mikro yapısı, Maxilla, Mandibula., Mikro bilgisayarlı tomografi, trabeküler kemik mikro yapısı, Maxilla, Mandibula.

Investigation of the Human Maxilla and Mandible Trabecular Microstructure with Micro-Computed Tomography

Keywords:

Micro-computed tomography; trabecular bone microstructure; maxillae, mandible, Mikro bilgisayarlı tomografi, trabeküler kemik mikro yapısı, Maxilla, Mandibula.,

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