Objectives Adequate knowledge about canal anatomy is necessary for clinicians to prevent any damage to the periodontium. The aim of this study was to evaluate the canal and apical complexities of the mandibular first and second premolars in an Iranian population. Methods One-hundred mandibular first (n=50) and second (n=50) premolars were collected. After access cavity preparation, 2% methylen...

tocele in the left upper lobe. A linear air pocket in the soft tissue of the left upper hemithorax was also noted ( fig. 1 c). CT revealed a 15 ! 6 cm cavitary lesion in the left upper lobe extending and communicating with the chest wall through a fistulous tract without pneumothorax or mediastinal emphysema ( fig. 2 ). The subcutaneous air pocket had been noted on the patient’s examination 4 y...

Localized malignant mesothelioma is an extremely rare form of presentation of malignant mesotheliomas. The definitive therapeutic modality of the disease is yet to be identified. A 50-year-old male, a former smoker without occupational and/or environmental exposure to asbestos, presented complaining of an intractable cough. The chest radiography showed a left upper lobe mass. The computed tomog...

This article describes and discusses a method to determine root curvature radius by using cone-beam computed tomography (CBCT). The severity of root canal curvature is essential to select instrument and instrumentation technique. The diagnosis and planning of root canal treatment have traditionally been made based on periapical radiography. However, the higher accuracy of CBCT images to identif...

BACKGROUND The physiological changes associated with pregnancy may predispose pregnant women to pulmonary edema. Other known causes of pulmonary edema during pregnancy include tocolytic drugs, preeclampsia, eclampsia, and peripartum cardiomyopathy. METHODS We describe a rare case of pulmonary edema caused by takotsubo cardiomyopathy in a pregnant woman at 14 weeks of gestation who was undergo...

The roots of two incisors were treated by apicoectomy and a retrograde dentin-bonded composite filling. Periapical healing was observed a few months later by radiography. Later, due to root fracture and marginal bone resorption, the apical parts were removed including adjacent periapical bone. A histological and scanning electron microscopic examination of the tissue showed reformation of perio...

BACKGROUND This study aimed to evaluate the accuracy of two imaging methods in detecting the apical pathology in endodontically treated teeth. MATERIAL AND METHODS A clinical examination from a sample of 156 teeth of patients treated by students of masters in endodontics at the Care Center of the Faculty of Dentistry at St. Joseph University, Beirut was done after 5 years of follow-up. Perira...

Case Report D.F., a 6-year-old girl, came to the Children's Hospital, Birmingham, in February, 1953, because of seven attacks of 'left basal pneumonia', the last being in July, 1952. The first illness had been treated in Malaya in 1951 and had responded to a course of streptomycin and sulphonamides. She was a well built, somewhat pallid child with no symptoms. Finger clubbing was absent; the tr...