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TDK conference 2021Rácz Julianna - year 5 University of Veterinary Medicine Budapest, Department and Clinic of Equine Medicine Supervisors: Dr. Pál Tuska, Dr. Zita Makra Regular dental care and chewing surface correction are crucial in equine practice, so that a lot of dental problems can be prevented. As the age of horse population in our country increases, dental problems are also becoming more common, therefore the importance of the solutions are essential to maintain food chewing and eating. The most common procedure is tooth extraction in equine dental practice. The PRF (platelet rich fibrin) is a biological membrane free from coagulation factors, that is able to promote and accelerate wound healing. This matrix of fibrin fibres is made from the patient’s own blood, which contains a lot of white blood cells (T- and B-lymphocytes, monocytes, neutrophil granulocytes), platelets, cytokines, progenitor cells, stem cells and various growth factors, thus can stimulate tissue angiogenesis and repair. The aim of the current study was to develop a new method for filling the alveolus after tooth extraction in equine dentistry, using PRF biological membrane. In addition, the results of these clinical cases were compared with previously performed traditional alveolar filling methods. In this research 30 clinical patients were included from the caseload of the Equine Clinic and Department of the Veterinary University, when a biological membrane (PRF group) was placed into the alveolus at longest 2 days after tooth extraction. In addition, 13 previously treated patients were included in the control group, when one of the traditional filling methods was used to fill the alveolus after extraction. In every case the tooth extraction was performed under sedation with local nerve blocks, from the oral cavity or with minimally invasive buccotomy. The PRF membrane was prepared aseptically from the horse’s own blood after centrifuge and placed into the alveolus, after this the alveolus was plugged with a silicone sealant, that was held in place with new techniques. The patients in the control group got either Povidone iodine-soaked swab or silicone sealant for filling. Pre- and postoperative dental X-rays, oral endoscopic or CT examinations were performed to follow up and evaluate the healing of the alveoli. Based on our clinical results, there were fewer septic complications and a faster filling time (max. 6-8 weeks), less veterinary costs and decreased working hours in the PRF group. The control group had a much longer recovery time of up to 1 year, respectively, with usually long and labour-intensive aftercare requiring frequent sedation, which all increased the veterinary costs. Our results clearly confirm, that with the help of our new method the healing process of the alveolus after tooth extraction is faster, less expensive, caused fewer complications and needed smaller amount of veterinary labour. List of lectures |