Evaluation of the radiopacity of a MTA-based root-canal filling material using digital radiography

Yıl 2013, Cilt: 3 Sayı: 1, 19 - 25, 29.01.2014

Birsay Gümrü Bilge Tarçın Dilek Erbay Türkaydın Emre İriboz Hesna Sazak Öveçoğlu

Öz

Objective: The aim of this study was to assess the radiopacity of a relatively new mineral trioxide aggregate (MTA)-based root-canal filling material and to compare it with four currently used root-canal filling materials using a digital imaging system.

Methods: The root-canal filling materials tested were MTA Fillapex, Adseal, AH Plus, Endomethasone and gutta-percha cones. Standard disks of five different root-canal filling materials were exposed together with an aluminum stepwedge calibrated in millimeters. For the radiographic exposures, a storage phosphor plate (size 4; 5.7x7.6 cm) and an x-ray machine at 70 kVp and 8 mA were used. The object-to-focus distance was 30 cm, and the exposure time was 0.2 sec. The grey values of the test materials were measured digitally using the system’s own software and compared with the stepwedge to find the equivalent thickness of aluminum. The data were analyzed statistically with significance levels set at p<0.05.

Results: The radiopacity values of the studied materials in decreasing order, expressed in millimeters of aluminum equivalent, were: AH Plus (9.70), gutta-percha (6.82), MTA Fillapex (5.30), Adseal (3.71) and Endomethasone (3.67). Statistically significant differences were found between mean radiographic density values of the tested materials (p<0.005), AH Plus showing the highest value.

Conclusion: MTA Fillapex was the third most radiopaque root-canal filling material among the tested materials in the study. All of the materials evaluated met the minimum radiopacity standard recommended by International Organization for Standardization and the American National Standards Institute/American Dental Association.

Key words: Aluminum stepwedge, digital radiography, radiopacity, root-canal filling material

Anahtar Kelimeler

Aluminum stepwedge, digital radiography, radiopacity, root-canal filling material

MTA-esaslı bir kök-kanal dolgu materyalinin radyo-opasitesinin dijital radyografi kullanılarak değerlendirilmesi

Öz

Amaç: Bu çalışmanın amacı son zamanlarda kullanıma giren mineral trioksit agregat (MTA) esaslı bir kök-kanal dolgu materyali olan MTA Fillapex’in radyo-opasitesinin dört farklı kök-kanal dolgu materyali ile dijital görüntüleme yöntemi kullanılarak karşılaştırılmasıdır.

Yöntemler: Çalışmada kök-kanal dolgu maddesi olarak MTA Fillapex, Adseal, AH Plus, Endomethasone ve güta-perka kon kullanılmıştır. Her bir kök-kanal dolgu materyalinden hazırlanan disk şeklindeki standart numuneler ve alüminyum penetrometre fosfor plaka (size 4; 5.7x7.6 cm) üzerine konarak 70 kVp, 8 mA ve 0.2 sn ışınlama parametreleri ile dijital radyografileri elde edilmiştir. Obje-ışın mesafesi 30 cm olacak şekilde ayarlanmıştır. Test edilen materyallerin grilik değerleri sistemin kendi yazılımı ile dijital olarak ölçülmüş ve eşdeğer alüminyum kalınlığını bulmak amacıyla penetrometre ile karşılaştırılmıştır. Elde edilen bulgular istatistiksel olarak, anlamlılık p<0.05 düzeyinde değerlendirilmiştir.

Bulgular: Test edilen materyallerin radyo-opasite değerlerinin milimetre cinsinden alüminyum eşdeğerleri büyükten küçüğe doğru AH Plus (9.70), güta-perka (6.82), MTA Fillapex (5.30), Adseal (3.71) ve Endomethasone (3.67) şeklindedir. Kullanılan kanal dolgu materyallerinin ortalama radyografik dansite değerleri arasında istatistiksel olarak anlamlı farklılık tespit edilmiş (p<0.005) olup en yüksek radyografik dansite değerine sahip olan kanal dolgu materyali AH Plus olmuştur.

Sonuç: MTA Fillapex çalışmada test edilen kök-kanal dolgu materyalleri arasında radyo-opasite açısından üçüncü sıradadır. Çalışmada kullanılan tüm materyallerin radyo-opasite değerleri Uluslararası Standartlar Örgütü ve Amerikan Ulusal Standartlar Enstitüsü/Amerikan Dişhekimleri Birliği tarafından tavsiye edilen minimum standart değerlerini karşılamıştır.

Anahtar Kelimeler : Alüminyum penetrometre, dijital radyografi, radyo-opasite, kök-kanal dolgu materyali

Anahtar Kelimeler

Alüminyum penetrometre, dijital radyografi, radyo-opasite, kök-kanal dolgu materyali

Kaynakça

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