Методика оценки точности установки зубных имплантатов с применением цифровых технологий

Abstract

The aim of the research. To develop a method for evaluation of dental implant placement accuracy using surgical navigation templates created with application of digital technologies. Material and methods. The clinical study enrolled 11 patients (5 male and 6 female) with partial tooth loss. Prosthetic treatment of the patients was performed using 15 implants manufactured by the additive method and installed using navigational surgical templates. In a computer program that we developed (certificate of state registration of computer program No. 2021665044, 17.09.2021), images of the planned position of the implants were superimposed over images of the actually installed implants with subsequent measurement of linear deviations in the area of the apical and the coronal portions of the implants as well as angular deviations between the long axes of the implants. Results. The mean angular deviation in the sagittal plane between the planned position of the implants and the ones installed in the oral cavity was 4.453 ± 2.554°. Mean linear deviation was 1.713 ± 0.7506 mm in the apical portion of the implant and 1.499 ± 0.9248 mm in the coronal portion. Conclusion. During this study, deviations were found in the position of implants after surgery, which indicates the existence of certain errors in the method of using navigational surgical templates. The computer program we have proposed makes it possible to evaluate the accuracy of dental implant placement by measuring linear and angular deviations between their planned and actual position aft er surgery.