today laser has a lot of usage in medicine and dentistry. in the field of dentistry, laser is used in soft tissue surgery, sterilization of canals (in root canal therapy) and in restorative dentistry laser is used for cavity preparation, caries removal, sealing the grooves (in preventive dentistry), etching enamel and dentin, composite polymerization and removal of tooth sensitivity. the use of...

objective : double aortic arch (daa) is a rare congenital malformation. strategies for diagnosis and treatment are different. thoracoscopic treatment of daa is limited to case reports or little case series. we report a description of our diagnostic and therapeutic approach and evaluate outcomes. methods: we reviewed charts of infants with double aortic arch who were hospitalized in our departme...

Tissue-engineered biomaterials have existed approximately 40 years as simple biomimetic structures. Replacement of human tissue with new tissue can be accomplished by generating replacements outside of the body or in situ in the body. In each case, the key elements are described as the tissue engineering triad of scaffolds, cells, and signals. Scaffolds can be produced synthetically or derived ...

For treatment of acute acromioclavicular dislocation we chose operative treatment in which we fixed clavicule to coracoid with a screw. With regard to the clinical results, out of 6 patients who had gone under operation, only one had calcification at coracoclavicular ligament without limitation of motion. There were no serious postoperative complication.