Vertical Root Fractures: Clinical and Radiographic Features, Risk Factors

Yıl 2012, Cilt: 5 Sayı: 4, 1019 - 1026, 01.01.2012

Ülkem Aydın

Öz

The vertical root fracture is a longitudinally oriented fracture that originates from the root canal wall in the apical part of the root and extends coronally and toward the outer root surface. The diagnosis of this entity is complicated owing to lack of specific signs and symptoms. Vertical root fracture occurs most frequently in endodontically treated premolar and mandibular first molar teeth. Subtle complaints, periodontal pockets and sinus tracts are among the most frequently encountered clinical features. Radiolucencies that do not resemble common periapical lesions, angular bone loss and in multirooted teeth, bifurcation radiolucency can be present. Direct visualization of the fracture line on radiographs may not be possible and currently cone beam computed tomography is suggested for diagnosis. Excessive root canal preparation, excessive condensation force and wedging effects of endodontic posts are considered as significant risk factors. Less frequently, vertical root fractures can occur in nonendodontically treated teeth. Clinical and radiographic features and risk factors of vertical root fractures are discussed in this review article

Anahtar Kelimeler

Vertical root fractures, tooth fractures, cracked tooth syndrome

Vertikal Kök Kırıkları: Klinik ve Radyografik Bulgular, Risk Faktörleri

Öz

Vertikal kök kırıkları, kökün apikal kısmında kök kanal duvarından başlayarak kökün dış yüzeyine ve koronale doğru giden uzunlamasına kırıklar olarak tanımlanmaktadır. Özgün bulgu ve belirtilerin olmaması nedeniyle bu kırıkların kesin teşhisi zor olabilmektedir. Vertikal kök kırıklarının daha çok endodontik tedavi görmüş premolar ve alt 1. molar dişlerde görüldüğü belirlenmiştir. Belirgin olmayan bazı şikayetler, dişeti cebi ve fistül en sık rastlanan klinik bulgular arasındadır. Radyografta klasik periapikal lezyonlara benzemeyen radyolüsensiler izlenebilir, açısal kemik defektleri ve çok köklü dişlerde bifurkasyonda radyolüsensi olabilir. Kırık hattının radyografta görüntülenmesi zordur ve son yıllarda teşhis için konik ışın demetli bilgisayarlı tomografiden yararlanılması önerilmektedir. Endodontik tedavi sırasında kök kanallarının aşırı derecede genişletilmesi, kök kanalının doldurulması sırasında fazla kuvvet uygulanması ve postların kama etkisi kırık oluşumunda önemli risk faktörleri olarak kabul edilmektedir. Vertikal kök kırıkları daha nadir olarak endodontik tedavi görmemiş dişlerde de ortaya çıkabilmektedir. Bu derlemede vertikal kök kırıklarında klinik ve radyografik bulgular ile risk faktörleri gözden geçirilmiştir

Anahtar Kelimeler

Vertikal kök kırıkları, diş kırıkları, çatlak diş sendromu

Kaynakça

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