Features of morphological organization of periodontal tissues during experimental drug correction against the background of weekly action of opioid analgesic
Keywords:
rats, opioid, periodontium, correction, histological examination.Abstract
Background. Various diseases of the oral cavity, tissues of the periodontal complex and teeth are quite common in opioid addicts, therefore, the development of effective treatment of such patients is of great scientific and practical interest and is an urgent problem today. Objective. To determine the effectiveness of pentoxifylline and ceftriaxone in periodontal damage on the background of experimental opioid exposure for six weeks. Methods. Studies were performed on 24 white male rats, which were divided into three groups. Group I - control rats (6). In group II, animals (9) were administered the intramuscular opioid analgesic nalbuphine for six weeks, in gradually increasing doses (0.212 mg / kg to 0.252 mg / kg). Group III - rats (9) were administered nalbuphine for six weeks, as well as drug correction with pentoxifylline (3-6 weeks) and ceftriaxone (5-6 weeks), at a dosage of 2.86 mg. Components of the dental organ of the upper and lower jaws of rats were used for histological examinations. Results. At the microstructural level, the recovery of the components of the gingival mucosa, periodontium and microcirculation was determined, which indicated the activation of compensatory-adaptive reactions. Signs of gum epithelial regeneration, preservation of collagen fiber architecture and signs of angiogenesis, as well as reduction of manifestations of edema, dystrophic changes and hypervascularization in periodontal connective tissue were noted. Conclusion. The performed drug correction with the use of pentoxifylline and ceftriaxone on the background of six weeks of opioid exposure contributed to the positive dynamics of microstructural rearrangement of rat periodontal components, which indicated an active course of reparative processes and improved hemomicrocirculation.
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