Abstract and keywords
Abstract (English):
Aim. To study the role and degree of influence of various clinical factors on osseointegration and the success of direct and delayed dental implantation using implant systems with different surface microstructure. Material and methods. Implant systems with different surface microstructures were used for the clinical study: Alfa Bio, Mis, Astra Tech, Dentium, Osstem, Antogher and Humana Dental. The study included 414 patients aged 20 to 70 years. All patients involved in the study were divided into two groups. The first group consisted of 109 patients who, after extraction, underwent direct implantation into the socket of the extracted tooth, followed by immediate loading. The second group, out of 305 patients, underwent delayed implantation. A total of 1302 implants were installed. Before the start of surgery, all patients underwent a thorough clinical and laboratory, X-ray and functional examination, as well as computed tomography. Dynamic observation was carried out on the basis of clinical, radiological and functional methods. In the course of treatment, starting from the moment of implantation at different times, the devices "Periotest" and "Osstel Mentor" were used to determine the stability of the implants and the dynamics of the quality of the osseointegration process. Results. The study found that implants placed in the lower jaw had higher success rates than implants placed in the upper jaw. There was no direct relationship between the length and diameter of implants and their survival rate. However, implants with a longer length and diameter are the best option for increasing primary stability. The analysis of implantation methods showed no statistically significant difference between the percentage of implant survival during immediate and delayed implantation. The highest percentage of implantation failures was noted with simultaneous implantation and sinus lifting, as well as with a horizontal increase in bone tissue volume. Conclusions. The findings of the study demonstrated that the long-term success of dental implantation depends on a combination of many factors, including bone volume and quality, shape, geometry, implant design, and surface microstructure.

stability, osteointegration, success, dental implantation, design, geometry, microstructure, bone regeneration

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