INFLUENCE OF LASER RADIATION AT THE REGENERATION OF SOFT TISSUES OF MAXILLOFACIAL REGION

Аннотация

Полный текст

Background. Traumatism of surgical operations in dentistry dictates the need to search for minimally invasive methods of tissue alteration. The use of lasers can solve this problem, since laser radiation is characterized by a lower operational injury, selective action and activation of reparative processes in the wound. Aim. Improving the efficiency of surgical treatment of patients with dental diseases using Nd:YAG laser. Material and Methods. We used Nd:YAG laser of wave length 1064 nm. In the experiment, we done histological examination of biopsy of the rabbit oral mucosa in different stages of healing. All rabbits were divided into 4 groups, depending on the method of defect formation: cutting tool, laser radiation power of 1.6 W, 2.4 W and 3.2 W, respectively. In the clinic Nd:YAG laser was used for surgical treatment of 183 patients with different dental diseases. Results and Discussion. On the results of the experimental and histological study, wound defect, caused by laser, compared to scalpel, much faster goes through all the stages of the wound healing process. The alterative processes and disorders of microcirculation, the intensity of inflammatory processes are less pronounced, reparation starts earlier and have more intensity: fibroblast proliferation, angiogenesis, collagen production, fibrillogenesis, maturation and fibrous cicatricial granulation tissue transformation, wound surface epithelialization. Analysis of clinical data showed that the using of Nd:YAG laser contributed to the unexpressed pain response, minor collateral edema in the postoperative period, reduction of healing terms. Conclusions. The using of Nd:YAG laser enhances the effectiveness of surgical treatment of patients with dental diseases due to reducing of rehabilitation terms.