Radiographic Assessment of Root Canal Numbers in Premolars by Use of Different Speed Films and a Direct Digital System

Abstract

The aim of this study is to compare the accuracy of D, E, F speed intraoral radiographs anddigital radiographic images with respect to the rootcanal numbers in premolars. Twenty extractedhuman mandibular and maxillary premolar teethwere imaged using 3 conventional and a direct digital system. Two endodontists and two radiologistsevaluated the radiographs and determined thenumber of root canals in each tooth. After the radiographic evaluation, the teeth were cleared andtrue number of canals in each tooth was determinedby observing the cleared tooth on the display of adigital photographic image. The data were compared using the chi-square test. There were no significant differences among D, E, F speed conventional film images and original and enhanced RVGimages for determination of root canal numbers butE speed film showed the better result

Keywords

• Digital radiography, conventionalintraoral radiographs, root canal numbers, premolar teeth

PREMOLAR DİŞLERİN KÖK KANAL SAYILARININ FARKLI HIZDAKİ FİLMLER VE BİR DİJİTAL GÖRÜNTÜLEME SİSTEMİYLE RADYOGRAFİK OLARAK DEĞERLENDİRİLMESİ

Abstract

Bu çal›şman›n amac›, D, E, F h›z›ndaki dental filmler ve bir dijital görüntüleme sistemiyle elde edilen radyograflarla belirlenen premolar dişlerin kök kanal say›lar›n›n doğruluğunun karş›laşt›r›lmas›d›r. Bu amaçla, 20 adet çekilmiş maksiller ve mandibular premolar dişin, farkl› h›zdaki 3 konvansiyonel film ve bir dijital sistem kullan›larak radyografik görüntüleri elde edilmiştir. Radyograflar, 4 gözlemci 2 oral radyolog, 2 endodontist taraf›ndan değerlendirilerek dişlerin kaç kanall› olduğunu belirlemeleri istenmiştir. Radyografik değerlendirme sonras› dişler şeffaflaşt›r›lm›ş, dijital fotoğraf makinas› ile elde edilen görüntülerde, dişlerin kanal say›lar› tam olarak belirlenmiştir. İstatistiksel analiz için ki kare testi kullan›lm›şt›r. Araşt›rmam›z›n sonuçlar›na göre, konvansiyonel D, E, F h›z›ndaki filmlerle, normal RVG ve tam ekran RVG ile elde edilen dijital görüntüler aras›nda kök kanal say›lar›n› belirleme aç›s›ndan istatistiksel olarak bir fark olmamas›na rağmen E grubu fimler say›sal olarak daha iyi sonuçlar vermiştir.

Keywords

• Dijital radyografi, konvansiyonel intraoral radyograflar, kök kanal say›lar›, premolar dişler.

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