Tightness of the conical implant-abutment interface

Abstract

Dental implant-based structures actively interact with the oral cavity and are subject to various factors. Local changes in the microflora near the implant can cause inflammation and affect its viability, as well as in the tooth. Improperly manufactured construction can also serve as a factor in the development of dysbiosis. The purpose of our study is to explore the permeability of the conical joint of the implant with an abutment of various types of manufacture under the influence of masticatory load. The tightness of the conical joint is studied on MIS C1 implants, a standard platform. The control group of the study consists of standard transgingival abutments. As an experimental group were used: milled, cast, and obtained by laser sintering. Modelling of oral cavity conditions was studied in a simulation complex. After 3000 masticating cycles the implant shafts were explored. When examining the inner surface of implants on which standard and milled abutments are fixed, the presence of methylene blue was not detected. A study of the implants shafts on which abutments were fixed, obtained by casting and laser sintering, showed the permeability of these compounds through the implant-abutment interface. Use of original elements in the system ensures a hermetic implant-abutment connection. In complex clinical cases for treatment and rehabilitation of patients, the manufacture of structures with individual abutments is required. The best result is achieved using abutments made by milling.