The establishment of pulp polyp-derived mesenchymal stem cells with normal karyotype.

Background/purpose: Pulp polyp is often eliminated as dental waste. Pulp polyp cells were reported to have high proliferation activity which might be comprised of stem cells. However, little has been known on the presence of stem cells in the pulp polyp.

Inhibition of lipopolysaccharide-induced NF-κB maintains osteogenesis of dental pulp and periodontal ligament stem cells.

Dental pulp stem cells (DPSCs) and periodontal ligament stem cells (PDLSCs) can differentiate into osteoblasts, indicating that both are potential candidates for bone tissue engineering. Osteogenesis is influenced by many environmental factors, one of which is lipopolysaccharide (LPS). LPS-induced NF-κB activity affects the osteogenic potencies of different types of MSCs differently.

Preoperative transcatheter arterial embolization successfully minimizes intraoperative bleeding in juvenile nasopharyngeal angiofibroma even without internal carotid artery branch embolization: A report of two cases.

Juvenile nasopharyngeal angiofibroma (JNA) is a histopathologically benign and highly vascular neoplasm of the nasopharynx. Surgery is the treatment of choice for this type of tumor, but its highly vascular nature could result in profuse and uncontrollable bleeding. Preoperative transcatheter arterial embolization offers an effective and minimally invasive modality for reducing intraoperative blood loss.

Massive DVT from the proximal IVC to the pedal vein: Our approach using aspiration mechanical thrombectomy and open surgery thrombectomy.

Deep venous thrombosis might present in an acute condition requiring early thrombus removal. Several endovascular and surgical approaches are available with a short treatment time and minimal complications compared to pharmacotherapies. However, due to a lack of evidence, these are not the first treatment choice for deep vein thrombosis.

Accuracy of additively manufactured zirconia four-unit fixed dental prostheses fabricated by stereolithography, digital light processing and material jetting compared with subtractive manufacturing.

Objective: To evaluate the manufacturing accuracy of zirconia four-unit fixed dental prostheses (FDPs) fabricated by three different additive manufacturing technologies compared with subtractive manufacturing.

Methods: A total of 79 zirconia FDPs were produced by three different manufacturing technologies, representing additive (one stereolithography [aSLA] and one material jetting [aMJ] device, two digital light processing [aDLP1/aDLP2] devices) and subtractive manufacturing (two devices [s1/s2]), the latter serving as references. After printing, additively manufactured FDPs were debound and finally sintered.