The influence of endodontic treatment quality on periapical lesions' architecture in cone-beam computed tomography.

This study assessed the influence of root canal treatment quality on the architecture of periapical lesions. A total of 121 lesions were involved in this research. Two researchers analysed the surface of the lesions, diameters in three planes, volume and sphericity.

Utility of Diagnostic Imaging in the Early Detection and Management of the Fournier Gangrene.

Fournier gangrene represents a urologic emergency. It is a rapidly progressing necrotizing fasciitis that comprises the perineal, perianal, and genital regions and has a high mortality rate. Diagnosis is usually made clinically, but radiological diagnostics, such as ultrasound (US), computed tomography (CT), or magnetic resonance imaging (MRI), can determine the extent of the disease in relation to pelvic structures.

Tomographic Evaluation of Reparative Dentin Formation after Direct Pulp Capping with Ca(OH)2, MTA, Biodentine, and Dentin Bonding System in Human Teeth.

Introduction: New materials can increase the efficiency of pulp capping through the formation of a complete reparative dentin bridge with no toxic effects. The present study involved tomographic evaluations of reparative dentin bridge formation after direct pulp capping with calcium hydroxide, mineral trioxide aggregate (MTA), Biodentine (Septodont, Saint Maur des Fossés, France), and Single Bond Universal (3M ESPE, Seefeld, Germany) in human teeth.

Methods: Forty-four caries-free, intact, human third molars scheduled for extraction were subjected to mechanical pulp exposure and assigned to 1 of 4 experimental groups depending on the pulp capping agent used: calcium hydroxide, MTA, Biodentine, or Single Bond Universal.

Decreased reactive oxygen generation during H2O2 decomposition in the presence of samples from human rectal cancer.

Reactive oxygen species (ROS) have generated a great deal of interest in the clinical field since experimental studies showed the involvement of these species in carcinogenesis. This paper reports the detection of ROS during the decomposition of H2O2 in the presence of samples obtained from tissues of 16 patients with rectal carcinoma (age 64 +/- 9 years) operated on in the Division of Surgical Oncology of Pomeranian Medical University, Szczecin (Poland). The samples were cut from the middle of the resected tumors and from the colonic mucosa (10 cm distant from the tumor and free of disease); they were processed and the supernatants, representing the soluble fraction, were used for measurements.