ABSTRACT
Exposure evidence to welding fume aerosols demonstrates that particulate air pollutants can cause both pulmonary and airway inflammation. However, few data show that particulates pollutants can induce systemic inflammatory responses in animals. The aim of this study was to test whether exposure to welding fume by inhalation of its fine and ultra fine particles and different compositions of the electrical welding processes would produce physiological disorders for the blood parameters of exposed rat's animal. We conducted the study using hematology coulter counter to analyze whole blood samples of rats after exposure to welding fumes. We investigated the effect of wielding fume exposure on some hematological parameters such as the red blood corpuscles [RBCs], white blood cells [WBCs] and platelet parameters. Fourteen male albino rats were randomly assigned to control or wielding fume inhalation. Significant decrease were observed after four weeks of wielding fume inhalation in the hemoglobin [Hb] concentration, RBCs count, hemoglobin [Hb], packed cell volume [PCV], mean corpuscular volume [MCV], mean corpuscular hemoglobin [MCH], red distribution width [RDW], mean corpuscular hemoglobin concentration [MCHC], Platelete counts [PLTs] and platelete large cell ratio [P-LCR].On the other hand, platelet distribution width [PDW]. We conclude that inhalation of wielding fume for a long time influence the progression of anemia and inflammation suggesting that welding fume profoundly affects whole-blood profiles
ABSTRACT
The different methods of T.M.J. arthroplasty in cases of ankylosis are reviewed, with particular emphasis upon the use of silastic. Twenty patients with ankylosis of the T.M.J. were treated by condylectomy and silastic arthroplasty. Thirteen patients had unilateral and seven had bilateral ankylosis. A procedure for the insertion of silastic implant without fixation was used. Twenty-seven implants were interpositioned. Within the five years following surgery 55.5% of the implants had to be removed due to dislocation and/or skin ulceration with exposure of the silastic. The recurrence rate of ankylosis was 10% of patients. We suggest that displacement of the implant is due to mechanical causes therefore good fixation of the silastic implant by wires, wound drainage and better shaping of the implant are requisites for successful silastic interpositional arthroplasty
Subject(s)
Humans , Temporomandibular JointABSTRACT
The use of cyanoacrylate for wound closure is safe whether intraorally or in the skin of the face. Several advantages are observed in the early postoperative period, immediate haemostasis, time saving, better sealing of the wound and improved healing rate. Patients are also comfortable and less apprehensive when local anaesthesia is used. Absence of suture marks is especially appreciated by patients with facial skin wounds closed by cyanoacrylate. On the other hand, some difficulties are met with during application. The high cost of the material is another disadvantage. We can conclude that cyanoacrylate can be a new addition and aid for the conventional method of wound closure