Prevalence, Localization and Radiographic Evaluation of Periapical Lesions in Posterior Teeth: Retrospective CBCT Study

Abstract

Aim: The aim of this study is to evaluate the distribution, localization and radiographic dimensions of periapical lesions of posterior teeth between jaws and teeth using CBCT. Material and Methods: In this study, CBCT images of 250 periapical lesions detected in 184 patients were evaluated. The longest diameter of the mesio-distal (MD), bucco-lingual (BL) and occluso-apical (OA) dimensions of the lesions was measured using a digital ruler. In order to determine the localization of the lesions, the region from the enamel-cementum border to the apex was divided into three equal parts as cervical, middle and apical parts. The localization of the lesions was determined by dividing the region from the cemento-enamel junction (CEJ) to the apex into three equal parts as cervical, middle, and apical parts. Results: The latero-apical region of the root surfaces was determined as the most prevalent site of lesions in both jaws. No significant correlation was observed between the mean lesion sizes of MD (p=0.331), BL (p=0.254), and OA (p=0.356) when comparing endodontically treated and untreated teeth, regardless of gender, age, and localization. In CBCT measurements, the OA distance of periapical lesions was larger than the MD and BL distances. Conclusions: The size and location of periapical lesions are two important factors affecting the success of endodontic treatment. Small periapical lesions that are difficult to identify or undetected by conventional two-dimensional (2D) radiographs can be identified by cone-beam computed tomography (CBCT).

Keywords

• Cone-beam computed tomography
• periapical lesion
• root canal treatment
• vertical bone destruction
• apical periodontitis

Posterior Dişlerde Periapikal Lezyonların Prevalansı, Lokalizasyonu ve Radyografik Değerlendirmesi: Retrospektif KIBT Çalışması

Abstract

Amaç: Bu çalışmada amaç, KIBT kullanarak posterior dişlerin endodontik periapikal lezyonlarının çeneler arası ve dişlere göre dağılımını, lokalizasyonunu ve radyografik boyutlarını değerlendirmektir. Gere ve Yöntemler: Bu çalışmada 184 hastada tespit edilen 250 endodontik periapikal lezyonun KIBT görüntüleri değerlendirildi. Lezyonların en uzun çapları, mezio-distal (MD), bukko-lingual (BL) ve okluzo-apikal (OA) boyutları dijital cetvel kullanılarak ölçüldü. Lezyonların lokalizasyonu, mine-sement birleşiminden apekse kadar olan bölgenin servikal, orta ve apikal kısımlar olmak üzere üç eşit parçaya bölünmesiyle belirlenmiştir. Bulgular: Kök yüzeylerinin latero-apikal bölgesi her iki çenede de lezyonların en yaygın olduğu bölge olarak belirlenmiştir. Endodontik olarak tedavi edilen ve edilmeyen dişler karşılaştırıldığında, cinsiyet, yaş ve lokalizasyondan bağımsız olarak, MD (p=0.331), BL (p=0.254) ve OA (p=0.356) ortalama lezyon boyutları arasında anlamlı bir korelasyon gözlenmemiştir. CBCT ölçümlerinde, periapikal lezyonların OA mesafesi MD ve BL mesafelerinden daha geniş olarak izlenmiştir. Sonuç: Periapikal lezyonun varlığı ve lezyonun boyutu endodontik tedavinin başarısını etkileyen faktörlerdir. Geleneksel iki boyutlu (2D) radyografilerle tespit edilmesi zor olan veya tespit edilemeyen küçük periapikal lezyonlar konik ışınlı bilgisayarlı tomografi (CBCT) ile tespit edilebilir.

Keywords

• Konik ışınlı bilgisayarlı tomografi
• periapikal lezyon
• kök kanal tedavisi
• vertikal kemik kaybı
• apikal periodontitis

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