Experimental rationale for autologous modification of dental implants based on nonwoven titanium material with through porosity

Aim. To provide the experimental rationale for technology of autologous modification of dental implants based on non-woven titanium material with a through porosity considering the indicators of peg-spacer primary stability.

Methods. Randomised study included 20 preparations of mandible of pigs aged form 9 to 13 months. Periotest method was used for comparative assessment of stability indicators of dental implants models based on non-tissue titanium material with a through porosity that were installed using the conventional technology and by autologous modification using pin spacer diameters of 1.8, 2.0 and 2.3 mm.

Results. Increasing the pin spacer diameter from 2.0 to 2.2 mm increases the indicators of stability by 13.33 PT in models of dental implants with sleeve of nonwoven titanium material with a through porosity, by 2.7 PT - with sleeve of nonwoven titanium material modified by autologous bone. Modification of nonwoven titanium material with a through porosity by autologous bone increases implant stability by 13.49 PT with pin spacer diameter of 2.0 mm, by 2.86 PT - with pin spacer diameter of 2.3 mm.

Conclusion. The stability of the dental implant model depends on the pin spacer diameter of the intraosseous part and the density of nonwoven titanium material with a through porosity, which is regulated by autologous bone modification. Study results suggest using the technology of autologous modification of dental implants based on nonwoven titanium material with a through porosity widely in clinical practice.